WO2020113397A1

WO2020113397A1 - Ultrasonic imaging method and ultrasonic imaging system

Info

Publication number: WO2020113397A1
Application number: PCT/CN2018/119040
Authority: WO
Inventors: 李双双; 何绪金
Original assignee: 深圳迈瑞生物医疗电子股份有限公司
Priority date: 2018-12-04
Filing date: 2018-12-04
Publication date: 2020-06-11
Also published as: CN113081054A; CN113081054B; CN111655154A; CN111655154B

Abstract

An ultrasonic imaging method and an ultrasonic imaging system for improving the observability of images. The ultrasonic imaging method comprises: transmitting a first ultrasonic wave to a target tissue, receiving a first ultrasonic echo wave returned from the target tissue, and acquiring a first ultrasonic echo signal (501); according to the first ultrasonic echo signal, acquiring an ultrasonic image of the target tissue (502); acquiring a sound attenuation image of a first region of the target tissue (503); transmitting a shear wave to the target tissue, transmitting a second ultrasonic wave to a second region of the target tissue, receiving a second ultrasonic echo wave returned from the second region, and acquiring a second ultrasonic echo signal, the shear wave being used to vibrate the target tissue (504); according to the second ultrasonic echo signal, determining an elastic parameter of the second region of the target tissue (505); displaying the ultrasonic image, the sound attenuation image and the elastic parameter (506).

Description

一种超声成像方法以及超声成像***Ultrasound imaging method and ultrasound imaging system

技术领域Technical field

本申请涉及医疗器械领域，尤其涉及一种超声成像方法以及超声成像***。The present application relates to the field of medical devices, in particular to an ultrasound imaging method and an ultrasound imaging system.

背景技术Background technique

超声弹性成像是近年来临床研究关心的热点之一，其主要反映组织的弹性或软硬程度，在组织癌症病变的辅助检测、良恶性判别、预后恢复评价等方面得到越来越多应用。Ultrasound elastography is one of the hotspots of clinical research in recent years. It mainly reflects the elasticity or hardness of tissues. It has been used more and more in the auxiliary detection of tissue cancer lesions, discrimination of benign and malignant, and evaluation of prognosis recovery.

超声弹性成像主要通过对感兴趣区域内的弹性相关参数进行成像，从而反映组织的软硬程度。近二十年来，已经出现了许多种不同的弹性成像方法，比如基于探头按压组织造成应变的准静态弹性成像，基于声辐射力产生剪切波的剪切波弹性成像或弹性测量，基于外部振动产生剪切波的瞬时弹性成像等。其中，超声瞬时弹性成像主要通过设计特殊的探头在产生振动的同时发射超声波检测组织内部位移，从而确定获得组织的瞬时弹性参数，在临床肝病检测，尤其是肝纤维化程度的辅助诊断中受到医生的广泛欢迎。并且，在实际临床应用中，也需要结合其他信息，例如，声衰减参数，来综合反映组织的性质，便于综合诊断。组织的脂肪量不同，通常会引起声衰减参数的差异。Ultrasound elastography mainly images the elasticity-related parameters in the region of interest to reflect the softness and hardness of the tissue. In the past two decades, many different methods of elastography have emerged, such as quasi-static elastography based on strain caused by the probe pressing on the tissue, shear wave elastography or elastic measurement based on the generation of shear waves based on acoustic radiation force, based on external vibration Instantaneous elastography to generate shear waves, etc. Among them, ultrasonic transient elastography is mainly designed by designing a special probe to emit ultrasonic waves to detect the internal displacement of the tissue while generating vibration, so as to determine the instantaneous elastic parameters of the tissue. It is received by doctors in clinical liver disease detection, especially the auxiliary diagnosis of liver fibrosis Is widely welcomed. In addition, in actual clinical applications, it is also necessary to combine other information, for example, sound attenuation parameters, to comprehensively reflect the nature of the tissue and facilitate comprehensive diagnosis. Different amounts of fat in tissues usually cause differences in sound attenuation parameters.

然而，现有方案中，确定出的瞬时弹性参数与声衰减参数为目标组织的一个全局平均的估计结果，无法反映目标组织内部的组织性质，使得操作人员根据确定得到瞬时弹性参数与声衰减参数，并不能得到目标组织准确的观察结果。However, in the existing scheme, the determined instantaneous elastic parameters and sound attenuation parameters are a global average estimation result of the target tissue, and cannot reflect the tissue properties within the target tissue, so that the operator obtains the instantaneous elastic parameters and sound attenuation parameters according to the determination. , And can not get accurate observation results of the target organization.

发明内容Summary of the invention

本申请提供一种超声成像方法以及超声成像***，用于提高图像的直观性。The present application provides an ultrasound imaging method and an ultrasound imaging system for improving the intuitiveness of an image.

本申请实施例的第一方面提供一种超声成像方法，包括：向目标组织发射第一超声波，并接收从所述目标组织返回的第一超声回波，获得第一超声回波信号；根据所述第一超声回波信号获取所述目标组织的超声图像；获取所述目标组织中第一区域的声衰减图像；向所述目标组织传送剪切波，以及向所述目标组织中的第二区域发射第二超声波，并接收从所述第二区域返回的第二超声回波，获得第二超声回波信号，所述剪切波用于使所述目标组织振动；根据所述第二超声回波信号确定所述目标组织中的第二区域的弹性参数；显示所述超声图像、所述声衰减图像以及所述弹性参数。A first aspect of an embodiment of the present application provides an ultrasound imaging method, including: transmitting a first ultrasound wave to a target tissue, and receiving a first ultrasound echo returned from the target tissue, to obtain a first ultrasound echo signal; The first ultrasound echo signal acquires an ultrasound image of the target tissue; acquires an acoustic attenuation image of a first area in the target tissue; transmits a shear wave to the target tissue, and sends a second wave to the target tissue The area emits a second ultrasonic wave, and receives a second ultrasonic echo returned from the second area to obtain a second ultrasonic echo signal, and the shear wave is used to vibrate the target tissue; according to the second ultrasonic wave The echo signal determines the elastic parameters of the second region in the target tissue; displaying the ultrasound image, the sound attenuation image, and the elastic parameters.

本申请实施例的第二方面提供一种超声成像方法，包括：向目标组织发射第一超声波，并接收从所述目标组织返回的第一超声回波，获得第一超声回波信号；根据所述第一超声回波信号获取所述目标组织的超声图像；获取所述目标组织中第一区域的声衰减图像；显示所述超声图像与所述声衰减图像。A second aspect of an embodiment of the present application provides an ultrasound imaging method, including: transmitting a first ultrasound wave to a target tissue, and receiving a first ultrasound echo returned from the target tissue, to obtain a first ultrasound echo signal; The first ultrasound echo signal acquires an ultrasound image of the target tissue; acquires an acoustic attenuation image of a first region in the target tissue; and displays the ultrasound image and the acoustic attenuation image.

本申请实施例的第三方面提供一种超声成像***，包括：探头、发射/接收序列电路、振动器、处理器以及显示器；A third aspect of the embodiments of the present application provides an ultrasound imaging system, including: a probe, a transmission/reception sequence circuit, a vibrator, a processor, and a display;

所述发射/接收序列电路，用于激励所述探头产生第一超声波；The transmit/receive sequence circuit is used to excite the probe to generate the first ultrasonic wave;

所述探头，用于向目标组织发射所述第一超声波，并接收从所述目标组织返回的第一超声回波，获得第一超声回波信号；The probe is used to transmit the first ultrasonic wave to the target tissue, and receive the first ultrasonic echo returned from the target tissue to obtain the first ultrasonic echo signal;

所述处理器，用于根据所述第一超声回波信号获取所述目标组织的超声图像，获取所述目标组织中第一区域的声衰减图像；The processor is configured to acquire an ultrasound image of the target tissue according to the first ultrasound echo signal, and acquire an acoustic attenuation image of a first area in the target tissue;

所述发射/接收序列电路，还用于激励所述探头产生第二超声波；The transmit/receive sequence circuit is also used to excite the probe to generate second ultrasonic waves;

所述探头，还用于向所述目标组织传送剪切波，以及向所述目标组织中的第二区域发射所述第二超声波，并接收从所述第二区域返回的第二超声回波，获得第二超声回波信号，所述剪切波用于使所述目标组织振动；The probe is also used to transmit a shear wave to the target tissue, and to emit the second ultrasonic wave to a second area in the target tissue and receive a second ultrasonic echo returned from the second area To obtain a second ultrasonic echo signal, and the shear wave is used to vibrate the target tissue;

所述处理器，还用于根据所述第二超声回波信号确定所述目标组织中的第二区域的弹性参数；The processor is further configured to determine the elastic parameter of the second region in the target tissue according to the second ultrasound echo signal;

所述显示器，用于显示所述超声图像、所述声衰减图像以及所述弹性参数。The display is used to display the ultrasound image, the sound attenuation image, and the elasticity parameter.

本申请实施例的第四方面提供一种超声成像***，包括：探头、发射/接收序列电路、处理器以及显示器；A fourth aspect of the embodiments of the present application provides an ultrasound imaging system, including: a probe, a transmit/receive sequence circuit, a processor, and a display;

所述显示器，用于显示所述超声图像与所述声衰减图像。The display is used to display the ultrasound image and the sound attenuation image.

本申请实施例的第五方面提供了一种计算机可读存储介质，该计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机执行上述第一方面或第二方面提供的成像方法。A fifth aspect of the embodiments of the present application provides a computer-readable storage medium having instructions stored therein, which when executed on a computer, causes the computer to execute the first aspect or the second aspect Imaging method.

在本申请实施例中，向目标组织发射第一超声波，并接收从所述目标组织返回的第一超声回波，获得第一超声回波信号。然后获取目标组织中第一区域的声衰减图像，以及根据第一超声回波信号获取超声图像。向目标组织传送剪切波，以及向目标组织中的第二区域发射第二超声波，并接收从第二区域返回的第二超声回波，获得第二超声回波信号，根据第二超声回波信号确定目标组织中的第二区域的弹性参数；显示所超声图像、声衰减图像以及弹性参数。因此，本申请实施例在显示超声图像的基础上，同时显示声衰减图像以及弹性参数。并且，该弹性参数为目标组织中的第二区域的参数，因此，基于超声图像与声衰减图像，可以更准确、更直观地反映目标组织内部的局部的弹性参数。以使操作人员可以结合超声图像、声衰减图像以及弹性参数对目标组织内的局部进行观察，提高对局部弹性参数显示的直观性。In the embodiment of the present application, the first ultrasonic wave is transmitted to the target tissue, and the first ultrasonic echo returned from the target tissue is received to obtain the first ultrasonic echo signal. Then acquire an acoustic attenuation image of the first region in the target tissue, and acquire an ultrasound image according to the first ultrasound echo signal. Transmit the shear wave to the target tissue, and emit the second ultrasonic wave to the second area in the target tissue, and receive the second ultrasonic echo returned from the second area to obtain the second ultrasonic echo signal, according to the second ultrasonic echo The signal determines the elastic parameters of the second region in the target tissue; the displayed ultrasound image, sound attenuation image, and elastic parameters are displayed. Therefore, in the embodiment of the present application, on the basis of displaying the ultrasound image, the sound attenuation image and the elasticity parameter are simultaneously displayed. In addition, the elastic parameter is a parameter of the second region in the target tissue. Therefore, based on the ultrasound image and the sound attenuation image, the local elastic parameter within the target tissue can be more accurately and intuitively reflected. So that the operator can observe the local part of the target tissue by combining the ultrasonic image, the sound attenuation image and the elastic parameter, and improve the intuitiveness of displaying the local elastic parameter.

附图说明BRIEF DESCRIPTION

图1为本申请实施例提供的一种可能的超声成像***的结构框图示意图；1 is a schematic structural block diagram of a possible ultrasound imaging system provided by an embodiment of the present application;

图2为本申请实施例提供的一种可能的探头的结构示意图；2 is a schematic structural diagram of a possible probe provided by an embodiment of the present application;

图3为本申请实施例提供的另一种可能的探头的结构示意图；3 is a schematic structural diagram of another possible probe provided by an embodiment of the present application;

图4为本申请实施例提供的一种可能的探头发射超声波的场景示意图；FIG. 4 is a schematic diagram of a possible probe transmitting ultrasound scene provided by an embodiment of the present application;

图5为本申请实施例提供的一种可能的超声成像方法的流程示意图；5 is a schematic flowchart of a possible ultrasound imaging method provided by an embodiment of the present application;

图6为本申请实施例提供的一种可能的超声成像方法的超声显示图；6 is an ultrasound display diagram of a possible ultrasound imaging method provided by an embodiment of the present application;

图7为本申请实施例提供的另一种可能的超声成像方法的超声显示图；7 is an ultrasound display diagram of another possible ultrasound imaging method provided by an embodiment of the present application;

图8为本申请实施例提供的一种可能的超声成像方法的超声能量衰减图；8 is an ultrasound energy attenuation diagram of a possible ultrasound imaging method provided by an embodiment of the present application;

图9为本申请实施例提供的另一种可能的超声成像方法的超声能量衰减图；9 is an ultrasonic energy attenuation diagram of another possible ultrasonic imaging method provided by an embodiment of the present application;

图10为本申请实施例提供的一种可能的超声成像方法的超声回波信号增益图；10 is a gain diagram of an ultrasound echo signal of a possible ultrasound imaging method provided by an embodiment of the present application;

图11为本申请实施例提供的另一种可能的超声成像方法的超声回波信号增益图；11 is an ultrasound echo signal gain diagram of another possible ultrasound imaging method provided by an embodiment of the present application;

图12为本申请实施例提供的一种可能的超声成像方法的超声发射时序图；12 is a timing diagram of ultrasound transmission of a possible ultrasound imaging method provided by an embodiment of the present application;

图13为本申请实施例提供的另一种可能的超声成像方法的超声发射时序图；13 is an ultrasonic transmission timing chart of another possible ultrasonic imaging method provided by an embodiment of the present application;

图14为本申请实施例提供的另一种可能的超声成像方法的超声发射时序图；14 is a timing diagram of ultrasound transmission of another possible ultrasound imaging method provided by an embodiment of the present application;

图15为本申请实施例提供的一种可能的超声成像方法的第二区域选定图；15 is a second area selection diagram of a possible ultrasound imaging method provided by an embodiment of the present application;

图16为本申请实施例提供的一种可能的超声成像方法的剪切波传播轨迹图；16 is a shear wave propagation trajectory diagram of a possible ultrasonic imaging method provided by an embodiment of the present application;

图17为本申请实施例提供的另一种可能的超声成像方法的剪切波传播曲线图；17 is a shear wave propagation curve diagram of another possible ultrasonic imaging method provided by an embodiment of the present application;

图18为本申请实施例提供的另一种可能的超声成像方法的超声显示图；18 is an ultrasound display diagram of another possible ultrasound imaging method provided by an embodiment of the present application;

图19为本申请实施例提供的另一种可能的超声成像***的结构框图示意图；19 is a schematic structural block diagram of another possible ultrasound imaging system provided by an embodiment of the present application;

图20为本申请实施例提供的另一种可能的超声成像方法的流程示意图；20 is a schematic flowchart of another possible ultrasound imaging method provided by an embodiment of the present application;

图21为本申请实施例提供的另一种可能的超声成像方法的超声显示图；21 is an ultrasound display diagram of another possible ultrasound imaging method provided by an embodiment of the present application;

图22为本申请实施例提供的另一种可能的超声成像方法的超声显示图。FIG. 22 is an ultrasound display diagram of another possible ultrasound imaging method provided by an embodiment of the present application.

具体实施方式detailed description

本申请提供一种超声成像方法以及超声成像***，用于提高超声弹性成像的直观性。The present application provides an ultrasound imaging method and an ultrasound imaging system for improving the intuitiveness of ultrasound elastography.

本申请的说明书和权利要求书及上述附图中的术语“第一”、“第二”、“第三”、“第四”等(如果存在)是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的实施例能够以除了在这里图示或描述的内容以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、***、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of this application and the above drawings are used to distinguish similar objects without using To describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances so that the embodiments described herein can be implemented in an order other than what is illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, processes, methods, systems, products or devices that contain a series of steps or units need not be limited to those clearly listed Those steps or units, but may include other steps or units not explicitly listed or inherent to these processes, methods, products, or equipment.

图1为本申请实施例中的超声成像***10的结构框图示意图。该超声成像***10可以包括探头100，其中，该探头100可以是超声探头、发射/接收选择开关101、发射/接收序列控制器102、处理器103、显示器104。发射/接收序列控制器102可以激励超声探头100向目标组织发射超声波，还可以控制超声探头100接收从目标组织返回的超声回波，从而获得超声回波信号/数据。处理器103对该超声回波信号/数据进行处理，以获得目标组织的组织相关参数和超声图像。处理器103获得的超声图像可以存储于存储器105中，这些超声图像可以在显示器104上显示。在一些可能的实现方式中，该超声成像***10还包括振动器106，该振动器106可以安装于探头100内部，也可以设置于探头100外部。振动器106可以用于产生特定波形的振动，即剪切波，并使探头100振动，当然，在一些可能的实现方式中，该超声成像***10无需振动器，直接根据声辐射力产生剪切波。FIG. 1 is a schematic structural block diagram of an ultrasound imaging system 10 in an embodiment of the present application. The ultrasound imaging system 10 may include a probe 100, wherein the probe 100 may be an ultrasound probe, a transmission/reception selection switch 101, a transmission/reception sequence controller 102, a processor 103, and a display 104. The transmission/reception sequence controller 102 can excite the ultrasound probe 100 to transmit ultrasound waves to the target tissue, and can also control the ultrasound probe 100 to receive the ultrasound echo returned from the target tissue, thereby obtaining ultrasound echo signals/data. The processor 103 processes the ultrasound echo signal/data to obtain tissue-related parameters and ultrasound images of the target tissue. The ultrasound images obtained by the processor 103 may be stored in the memory 105, and these ultrasound images may be displayed on the display 104. In some possible implementations, the ultrasound imaging system 10 further includes a vibrator 106, which may be installed inside the probe 100 or may be arranged outside the probe 100. The vibrator 106 can be used to generate a specific waveform of vibration, that is, a shear wave, and vibrate the probe 100. Of course, in some possible implementations, the ultrasonic imaging system 10 does not require a vibrator, and directly generates a shear according to the acoustic radiation force. wave.

本申请实施例中，前述的超声成像***10的显示器104可为触摸显示屏、液晶显示屏等，也可以是独立于超声成像***10之外的液晶显示器、电视机等独立显示设备，也可为手机、平板电脑等电子设备上的显示屏。In the embodiment of the present application, the display 104 of the foregoing ultrasound imaging system 10 may be a touch display screen, a liquid crystal display screen, etc., or may be an independent display device independent of the ultrasound imaging system 10, such as a liquid crystal display, a television, or the like. It is a display screen on electronic devices such as mobile phones and tablet computers.

本申请的一个可选实施例中，探头100内部还可以设置传感器，该传感器用于反馈振动器的振动力强度，或者探头100对目标组织的按压力度。根据该传感器的反馈，可以控制振动器106产生的振动，使振动器106产生的剪切波更稳定。并且可以根据该传感器的反馈，调整探头100对目标组织的按压力度，使得剪切波可以高质量地传入目标组织，从而提升瞬时弹性的检测准确度。In an optional embodiment of the present application, a sensor may also be provided inside the probe 100, and the sensor is used to feed back the vibration force strength of the vibrator or the pressing force of the probe 100 on the target tissue. According to the feedback of the sensor, the vibration generated by the vibrator 106 can be controlled to make the shear wave generated by the vibrator 106 more stable. In addition, according to the feedback of the sensor, the pressing force of the probe 100 against the target tissue can be adjusted, so that the shear wave can be transmitted to the target tissue with high quality, thereby improving the detection accuracy of instantaneous elasticity.

本申请的一个可选实施例中，探头100的声头部分可以是多个阵元组成的阵列，该多个为两个或两个以上。阵元可以用于将电信号转换为超声波，并发送超声波，以及接收返回的超声回波，将超声回波转换为电信号，以得到超声回波数据/信号。其中，该阵列的形状可以是直线排列，也可以是扇形排列等，具体可以根据实际应用场景调整。示例性地，直线排列可以如图2所示，多个阵元呈直线型排。示例性地，扇形排列可以如图3所示，多个阵元呈扇形排列。每个阵元通过接收发射电路的发射信号与接收电路发送的接收信号，进行超声波的发射或超声回波的接收。具体地，探头100发射超声的场景可以如图4所示，探头100内部的阵元向目标组织发送超声波，并接收从目标组织返回的超声回波。In an optional embodiment of the present application, the acoustic head portion of the probe 100 may be an array composed of a plurality of array elements, and the plurality is two or more. The array element can be used to convert electrical signals into ultrasonic waves, send ultrasonic waves, and receive the returned ultrasonic echoes, and convert the ultrasonic echoes into electrical signals to obtain ultrasonic echo data/signals. The shape of the array may be a linear arrangement, a fan arrangement, etc., which may be adjusted according to actual application scenarios. Exemplarily, the linear arrangement may be as shown in FIG. 2, and the multiple array elements are arranged in a linear manner. Exemplarily, the fan-shaped arrangement may be as shown in FIG. 3, and a plurality of array elements are arranged in a fan-shape. Each array element performs the transmission of ultrasonic waves or the reception of ultrasonic echoes by receiving the transmission signal of the transmission circuit and the reception signal sent by the reception circuit. Specifically, the scene in which the probe 100 emits ultrasound may be as shown in FIG. 4, the array element inside the probe 100 transmits ultrasound to the target tissue, and receives the ultrasound echo returned from the target tissue.

本申请的一个可选实施例中，前述的超声成像设备10的存储器105可为闪存卡、固态存储器、硬盘等。In an optional embodiment of the present application, the foregoing memory 105 of the ultrasound imaging apparatus 10 may be a flash memory card, a solid-state memory, a hard disk, or the like.

本申请的一个可选实施例中，还提供一种计算机可读存储介质，该计算机可读存储介质存储有多条程序指令，该多条程序指令被处理器103调用执行后，可执行本申请各个实施例中的超声成像方法中的部分步骤或全部步骤或其中步骤的任意组合。In an optional embodiment of the present application, a computer-readable storage medium is also provided. The computer-readable storage medium stores a plurality of program instructions. After the plurality of program instructions are called and executed by the processor 103, the present application can be executed. Part or all of the steps in the ultrasound imaging method in various embodiments or any combination of steps therein.

本申请的一个可选实施例中，该计算机可读存储介质可为存储器105，其可以是闪存卡、固态存储器、硬盘等非易失性存储介质。In an optional embodiment of the present application, the computer-readable storage medium may be the memory 105, which may be a non-volatile storage medium such as a flash memory card, solid state memory, or hard disk.

本申请的一个可选实施例中，前述的超声成像设备10的处理器103可以通过软件、硬件、固件或者其组合实现，可以使用电路、单个或多个专用集成电路(application specific integrated circuits，ASIC)、单个或多个通用集成电路、单个或多个微处理器、单个或多个可编程逻辑器件、或者前述电路或器件的组合、或者其他适合的电路或器件，从而使得该处理器103可以执行本申请的各个实施例中的超声成像方法的相应步骤。In an alternative embodiment of the present application, the aforementioned processor 103 of the ultrasound imaging apparatus 10 may be implemented by software, hardware, firmware, or a combination thereof, and may use circuits, single or multiple application specific integrated circuits (application specific integrated circuits, ASIC ), single or multiple general-purpose integrated circuits, single or multiple microprocessors, single or multiple programmable logic devices, or a combination of the aforementioned circuits or devices, or other suitable circuits or devices, so that the processor 103 can The corresponding steps of the ultrasound imaging method in various embodiments of the present application are performed.

下面对本申请中的超声成像方法进行详细描述，请参阅图5，本申请实施例提供的一种超声成像方法，该方法应用于超声成像***10，特别适用于包含触摸显示屏的超声成像***10，用于可以利用接触触摸显示屏来输入触屏操作。该超声成像***10可利用超声回波数据生成弹性图像，也可以利用超声回波数据生成常规的超声B图像或者多普勒图像等等。本申请中的超声成像方法实施例包括：The ultrasound imaging method in the present application is described in detail below, please refer to FIG. 5, an ultrasound imaging method provided by an embodiment of the present application is applied to the ultrasound imaging system 10, and is particularly suitable for an ultrasound imaging system 10 including a touch screen , For touch screen operation can be used to enter touch screen operations. The ultrasound imaging system 10 may use ultrasound echo data to generate an elastic image, or may use ultrasound echo data to generate a conventional ultrasound B image or a Doppler image, and so on. Embodiments of the ultrasound imaging method in this application include:

501、向目标组织发射第一超声波，并接收从目标组织返回的第一超声回波，获得第一超声回波信号。501: Transmit first ultrasonic waves to a target tissue, and receive the first ultrasonic echo returned from the target tissue to obtain a first ultrasonic echo signal.

首先，可以通过探头向目标组织发射第一超声波，目标组织在该第一超声波的激励下，产生超声回波，通过探头接收该超声回波，并转换为电信号，得到第一超声回波信号。其中，该目标组织可以是任意人体组织。First, the first ultrasonic wave can be transmitted to the target tissue through the probe. Under the excitation of the first ultrasonic wave, the target tissue generates an ultrasonic echo, which is received by the probe and converted into an electrical signal to obtain the first ultrasonic echo signal . The target tissue can be any human tissue.

本申请的一个实施例中，基于前述的超声成像***10，处理器控制打开发射/接收选择开关101，并通过发射/接收序列控制器，激励探头100按照超声图像的参数，生成第一超声波，并向目标组织发送。并通过探头100接收从目标组织返回的超声回波，以得到第一超声回波信号，并传送至处理器103，处理器103对该第一超声回波信号进行处理，得到超声图像。其中，该第一超声回波可以包括从目标组织的不同深度返回的回波。In an embodiment of the present application, based on the aforementioned ultrasound imaging system 10, the processor controls to open the transmit/receive selection switch 101, and through the transmit/receive sequence controller, the probe 100 is excited to generate the first ultrasonic wave according to the parameters of the ultrasonic image, And send to the target organization. And the ultrasound echo returned from the target tissue is received by the probe 100 to obtain a first ultrasound echo signal, and is transmitted to the processor 103, and the processor 103 processes the first ultrasound echo signal to obtain an ultrasound image. Wherein, the first ultrasound echo may include echoes returned from the target tissue at different depths.

本申请的一个实施例中，发射/接收序列控制器可以生成用于激励探头产生第一超声波的第一序列。该第一序列可以包括一组或多组超声波的发射与超声回波的接收。例如，该第一序列中可以包括发射一组第一超声波，并在1ms之后接收该第一超声波对应的第一超声回波信号等。In an embodiment of the present application, the transmit/receive sequence controller may generate a first sequence for exciting the probe to generate the first ultrasonic wave. The first sequence may include the transmission of one or more sets of ultrasound waves and the reception of ultrasound echoes. For example, the first sequence may include transmitting a group of first ultrasound waves and receiving the first ultrasound echo signal corresponding to the first ultrasound waves after 1 ms.

本申请的一个实施例中，探头100可以从不同的角度向目标组织发射第一超声波，且发射第一超声波的面积覆盖目标组织的区域。且第一超声波可以穿透目标组织的预置深度。因此，根据第一超声回波信号获取到的超声图像可以完整地覆盖目标组织的范围。In one embodiment of the present application, the probe 100 can transmit the first ultrasonic wave to the target tissue from different angles, and the area where the first ultrasonic wave is emitted covers the area of the target tissue. And the first ultrasonic wave can penetrate the preset depth of the target tissue. Therefore, the ultrasound image acquired according to the first ultrasound echo signal can completely cover the range of the target tissue.

502、根据第一超声回波信号获取目标组织的超声图像。502. Acquire an ultrasound image of the target tissue according to the first ultrasound echo signal.

在获取到第一超声回波信号后，根据该第一超声回波信号的参数进行成像，得到目标组织的超声图像。After acquiring the first ultrasound echo signal, imaging is performed according to the parameters of the first ultrasound echo signal to obtain an ultrasound image of the target tissue.

本申请的一个实施例中，在接收到第一超声回波信号后，可以去除第一超声回波信号中的噪声。超声回波信号经过波束合成电路进行波束合成处理后，传输至处理器105，处理器105对该超声回波信号进行处理，以获得目标组织的超声图像。In an embodiment of the present application, after receiving the first ultrasonic echo signal, the noise in the first ultrasonic echo signal may be removed. After the ultrasonic echo signal undergoes beam synthesis processing through a beam synthesis circuit, it is transmitted to the processor 105, and the processor 105 processes the ultrasonic echo signal to obtain an ultrasound image of the target tissue.

本申请的一个实施例中，超声图像可以是灰阶图像，也可以是彩色多普勒血流图像，还可以是其他图像，此处不做具体限定。并且，该灰阶图像或彩色多普勒血流图像可以在显示器104中显示。In an embodiment of the present application, the ultrasound image may be a grayscale image, a color Doppler blood flow image, or other images, which is not specifically limited herein. And, the grayscale image or color Doppler blood flow image can be displayed on the display 104.

本申请的一个实施例中，第一超声回波可以包括从目标组织的不同深度返回的回波，那么，第一超声回波信号可以得到目标组织的不同深度的组织的返回信息。因此，在生成超声图像时，可以得到目标组织中不同深度的组织的超声图像。In an embodiment of the present application, the first ultrasound echo may include echoes returned from different depths of the target tissue, then, the first ultrasound echo signal may obtain return information of tissues of different depths of the target tissue. Therefore, when generating an ultrasound image, ultrasound images of tissues of different depths in the target tissue can be obtained.

本申请的一个可选实施例中，超声图像可以是灰阶图像。具体的超声图像获取方式可以是，在得到第一超声回波信号后，可以去除第一超声回波信号中的噪声。超声回波信号进行波束合成处理后，传输至处理器103，处理器103对该超声回波信号进行处理，包括根据第一超声回波信号的幅度值与预置的权重信息，确定目标组织对应的每个像素值，并且根据每个像素值，得到目标组织的灰阶图像。In an optional embodiment of the present application, the ultrasound image may be a grayscale image. A specific ultrasound image acquisition method may be that, after the first ultrasound echo signal is obtained, noise in the first ultrasound echo signal may be removed. After the ultrasonic echo signal is beam-synthesized, it is transmitted to the processor 103. The processor 103 processes the ultrasonic echo signal, including determining the corresponding target tissue according to the amplitude value of the first ultrasonic echo signal and preset weight information Each pixel value of, and according to each pixel value, get the grayscale image of the target organization.

本申请的一个可选实施例中，超声图像可以包括彩色多普勒血流图像。通过彩色多普勒血流成像，得到彩色多普勒血流图像。具体方式可以是，在得到第一超声回波信号后，可以去除第一超声回波信号中的噪声。超声回波信号进行波束合成处理后，传输至处理器103，处理器103对该超声回波信号进行处理，包括根据第一超声回波信号的幅度值与预置的血流参数，确定目标组织对应的每个像素值，并且根据每个像素值，得到目标组织的彩色多普勒血流图像。彩色多普勒血流图像可以反映目标组织的血流的方向以及流速。并且，可以是在灰阶图像的基础上，叠加血流信息，得到该彩色多普勒血流图像。因此，在本申请实施例中，除了可以显示目标组织的超声图像，也可以显示彩色多普勒血流图像，进一步显示目标组织内部的血流信息，便于对目标组织的观察。In an optional embodiment of the present application, the ultrasound image may include a color Doppler blood flow image. Through color Doppler blood flow imaging, color Doppler blood flow images are obtained. The specific manner may be that, after the first ultrasonic echo signal is obtained, the noise in the first ultrasonic echo signal may be removed. After the ultrasound echo signal is beam-synthesized, it is transmitted to the processor 103. The processor 103 processes the ultrasound echo signal, including determining the target tissue according to the amplitude value of the first ultrasound echo signal and the preset blood flow parameters Corresponding to each pixel value, and according to each pixel value, a color Doppler blood flow image of the target tissue is obtained. The color Doppler blood flow image can reflect the direction and velocity of the blood flow of the target tissue. Moreover, the color Doppler blood flow image may be obtained by superimposing blood flow information on the basis of the gray-scale image. Therefore, in the embodiment of the present application, in addition to displaying the ultrasound image of the target tissue, it can also display the color Doppler blood flow image, and further display the blood flow information inside the target tissue, so as to facilitate the observation of the target tissue.

503、获取目标组织中第一区域的声衰减图像。503. Acquire the sound attenuation image of the first region in the target tissue.

本申请实施例中，可以获取目标组织中第一区域的声衰减图像。具体地，可以是先获取第一区域的声衰减参数，然后根据该声衰减参数，确定声衰减图像的每个像素点的像素值，得到声衰减图像。In the embodiment of the present application, the sound attenuation image of the first region in the target tissue can be obtained. Specifically, it may be that the sound attenuation parameter of the first area is first obtained, and then the pixel value of each pixel of the sound attenuation image is determined according to the sound attenuation parameter to obtain the sound attenuation image.

需要说明的是，本申请实施例对步骤502与步骤503的执行顺序不作限定，可以先执行步骤502，也可以先执行步骤503，具体可以根据实际应用场景调整。It should be noted that the embodiment of the present application does not limit the execution order of step 502 and step 503. Step 502 may be executed first, or step 503 may be executed first, which may be adjusted according to actual application scenarios.

还需要说明的是，在显示超声图像的基础上，本申请实施例还可以仅显示声衰减图像，也可以显示声衰减图像与声衰减参数，还可以仅显示声衰减参数，具体可以根据实际应用场景调整，此处不做限定。It should also be noted that, on the basis of displaying the ultrasound image, the embodiments of the present application may also display only the sound attenuation image, the sound attenuation image and the sound attenuation parameter, or only the sound attenuation parameter, depending on the actual application. Scene adjustment is not limited here.

本申请的一个可选实施例中，声衰减图像可以是由第一区域的声衰减参数进行彩色编码得到。具体地，可以是确定第一区域内的声衰减值的分布，然后根据该声衰减值的分布，将声衰减值按照预置的对应关系，转换为声衰减图像中每个像素点的像素值，该像素值包括：亮度值、灰度值、色彩值等等。并将每个像素点的像素值组合起来，得到该声衰减图像。该预置的对应关系可以是声衰减值与像素值之间的对应关系，例如，像素值可以为声衰减值的N倍，或者，像素值可以是将声衰减值按照预置的公式进行计算得到。因此，在本申请实施例中，可以通过彩色编码的方式，使声衰减图像更能反应声衰减参数的分布，对目标组织的第一区域的声衰减可以进行更方便地观察。In an optional embodiment of the present application, the sound attenuation image may be obtained by color coding the sound attenuation parameters of the first area. Specifically, it may be to determine the distribution of the sound attenuation value in the first area, and then convert the sound attenuation value into the pixel value of each pixel in the sound attenuation image according to the preset correspondence according to the distribution of the sound attenuation value , The pixel value includes: brightness value, gray value, color value and so on. The pixel values of each pixel are combined to obtain the sound attenuation image. The preset correspondence may be the correspondence between the sound attenuation value and the pixel value, for example, the pixel value may be N times the sound attenuation value, or the pixel value may be the sound attenuation value calculated according to a preset formula get. Therefore, in the embodiments of the present application, the color attenuation can be used to make the sound attenuation image more reflect the distribution of the sound attenuation parameters, and the sound attenuation of the first region of the target tissue can be more conveniently observed.

本申请的一个可选实施例中，在得到超声图像与声衰减图像后，即可在显示器104中显示。其中，超声图像与声衰减图像可以分开显示，也可以将声衰减图像叠加至超声图像中显示。示例性地，超声图像与声衰减图像的叠加显示图可以如图6所示，其中，超声图像601与声衰减图像602叠加。可以理解为，声衰减图像与超声图像融合，得到第一融合图像并显示，第一融合图像即图6中显示的超声图像601与声衰减图像602的叠加。此外，声衰减图像与超声图像还可以分开显示，即图6中的601与602分开显示，此处不作赘述。因此，在本申请实施例中，可以将声衰减图像叠加至超声图像中，可以更直观地显示第一区域在目标组织中的声衰减特性。In an optional embodiment of the present application, after the ultrasound image and the sound attenuation image are obtained, they can be displayed on the display 104. Among them, the ultrasound image and the sound attenuation image may be displayed separately, or the sound attenuation image may be superimposed on the ultrasound image for display. Exemplarily, the superimposed display image of the ultrasound image and the sound attenuation image may be as shown in FIG. 6, wherein the ultrasound image 601 and the sound attenuation image 602 are superimposed. It can be understood that the sound attenuation image is fused with the ultrasound image to obtain and display the first fusion image. The first fusion image is the superimposition of the ultrasound image 601 and the sound attenuation image 602 shown in FIG. 6. In addition, the sound attenuation image and the ultrasound image can also be displayed separately, that is, 601 and 602 in FIG. 6 are displayed separately, and details are not described here. Therefore, in the embodiment of the present application, the sound attenuation image can be superimposed on the ultrasound image, and the sound attenuation characteristics of the first region in the target tissue can be displayed more intuitively.

本申请的一个可选实施例中，当将声衰减图像与超声图像融合，以得到第一融合图像，并显示第一融合图像时，还可以同时显示声衰减参数。示例性地，如图7所示，可以在显示器中显示：“声衰减参数：XXX”。因此，在本申请实施例中，除了显示声衰减图像外，还可以直接显示声衰减参数，以直接反应目标组织的第一区域的声衰减特性。In an optional embodiment of the present application, when the sound attenuation image and the ultrasound image are fused to obtain the first fused image, and the first fused image is displayed, the sound attenuation parameter may also be displayed at the same time. Exemplarily, as shown in FIG. 7, "Sound attenuation parameter: XXX" may be displayed in the display. Therefore, in the embodiment of the present application, in addition to displaying the sound attenuation image, the sound attenuation parameters may be directly displayed to directly reflect the sound attenuation characteristics of the first region of the target tissue.

应理解，前述图6与图7中的第一区域的位置与大小仅仅是示例性说明，第一区域位于目标组织，第一区域的大小可以是目标组织的全部或部分。It should be understood that the positions and sizes of the first regions in FIG. 6 and FIG. 7 are only exemplary illustrations. The first region is located in the target tissue, and the size of the first region may be all or part of the target tissue.

本申请的一个可选实施例中，第一区域可以是从目标组织中任意确定的区域。也可以是在显示器中显示超声图像后，由用户对目标组织进行输入得到。还可以是根据超声图像中显示的目标组织，按照预置规则得到，该预置规则可以是将像素值与周围像素值相差大于阈值的区域作为第一区域，还可以是将像素值分布均为的区域作为第一区域等等。具体可以根据实际应用场景调整。In an optional embodiment of the present application, the first area may be an area arbitrarily determined from the target organization. It may also be obtained by the user inputting the target tissue after displaying the ultrasound image on the display. It can also be obtained according to the target tissue displayed in the ultrasound image according to a preset rule. The preset rule can be to use the area where the difference between the pixel value and the surrounding pixel value is greater than the threshold as the first area, or the pixel value distribution can be Area as the first area and so on. It can be adjusted according to the actual application scenario.

本申请的一个可选实施例中，第一区域的声衰减参数可以根据第一超声回波信号得到。首先从第一超声回波信号中确定第一区域对应的信号，然后根据第一区域对应的信号在各个预置深度的幅值，确定第一区域的声衰减参数。通常，从不同深度返回的超声回波信号的幅值不同，深度即第一区域中的组织与探头的距离，深度越深的组织得到的超声回波信号的幅值通常也越低。并且，组织的性质不同，也通常会引起超声回波信号的幅值变化。因此，根据第一区域对应的信号在各个预置深度的幅值确定第一区域的声衰减参数，可以确定各个预置深度的幅值的变化率，可以更准确地得到声衰减参数。相应地，在发射/接收序列控制器产生第一超声波对应的序列时，该序列中包括超声图像与声衰减参数共用的参数，例如，发射频率、发射波形长度、接收横向位置范围、接收方放大备注、接收滤波参数等等。在本申请实施例中，第一区域的声衰减参数可以根据第一超声回波信号得到。因此，可以高效利用第一超声波的资源，避免重复发射超声波。In an optional embodiment of the present application, the sound attenuation parameter of the first area may be obtained according to the first ultrasonic echo signal. First, the signal corresponding to the first area is determined from the first ultrasonic echo signal, and then the sound attenuation parameter of the first area is determined according to the amplitude of the signal corresponding to the first area at each preset depth. Generally, the amplitudes of the ultrasonic echo signals returned from different depths are different. The depth is the distance between the tissue in the first region and the probe. The deeper the tissue, the lower the amplitude of the ultrasonic echo signal. Moreover, the nature of the tissue is different, which usually causes the amplitude of the ultrasonic echo signal to change. Therefore, the sound attenuation parameter of the first area is determined according to the amplitude of the signal corresponding to the first area at each preset depth, the rate of change of the amplitude of each preset depth can be determined, and the sound attenuation parameter can be obtained more accurately. Accordingly, when the transmission/reception sequence controller generates a sequence corresponding to the first ultrasonic wave, the sequence includes parameters common to the ultrasonic image and the sound attenuation parameters, for example, the transmission frequency, the transmission waveform length, the receiving lateral position range, and the receiver amplification Remarks, receiving filter parameters, etc. In the embodiment of the present application, the sound attenuation parameter of the first area may be obtained according to the first ultrasonic echo signal. Therefore, the resources of the first ultrasonic wave can be efficiently used to avoid repeated transmission of ultrasonic waves.

本申请的一个可选实施例中，第一区域的声衰减参数可以根据第三超声回波信号得到。具体地，可以通过探头向第一区域发送第三超声波，并接收从目标组织返回的超声回波，以得到第三超声回波信号。该第三超声波为发射/接收序列控制器根据第一区域的声衰减相关信息产生的第三序列，激励探头产生。与根据第一超声回波信号确定第一区域的声衰减参数类似，第三超声回波信号中包括第一区域对应的各个预置深度的幅值，根据第一区域对应的各个预置深度的幅值，确定第一区域的声衰减参数。相应地，在发射/接收序列控制器产生第三超声波对应的序列时，该序列中仅包括声衰减参数相关的参数，例如，发射频率、发射波形长度、接收横向位置范围、接收方放大备注、接收滤波参数等等。在本申请实施例中，可以直接向第一区域发送第三超声波，以获取第三超声回波信号，并根据第三超声回波信号确定第一区域的声衰减参数。可以使得到的第一区域的声衰减参数更准确。In an optional embodiment of the present application, the sound attenuation parameter of the first area may be obtained according to the third ultrasonic echo signal. Specifically, the third ultrasonic wave may be sent to the first area through the probe, and the ultrasonic echo returned from the target tissue may be received to obtain the third ultrasonic echo signal. The third ultrasonic wave is a third sequence generated by the transmission/reception sequence controller according to the sound attenuation related information in the first area, and is excited by the probe. Similar to determining the acoustic attenuation parameter of the first area based on the first ultrasonic echo signal, the third ultrasonic echo signal includes the amplitude of each preset depth corresponding to the first area, and The amplitude determines the sound attenuation parameters of the first area. Correspondingly, when the transmission/reception sequence controller generates a sequence corresponding to the third ultrasonic wave, the sequence includes only the parameters related to the sound attenuation parameters, for example, the transmission frequency, the transmission waveform length, the receiving lateral position range, the receiver's amplification remarks, Receive filter parameters, etc. In the embodiment of the present application, the third ultrasonic wave may be directly sent to the first area to obtain the third ultrasonic echo signal, and the sound attenuation parameter of the first area may be determined according to the third ultrasonic echo signal. It is possible to make the acoustic attenuation parameter of the first area obtained more accurate.

本申请的一个可选实施例中，在根据第一超声回波信号或者第三超声回波信号确定声衰减参数时，通常，超声回波信号的幅度随着深度的增加而降低，将幅度转换为dB为单位时，即可确定幅度随着深度的增加而呈现降低的趋势，如图8所示，超声回波的能量衰减的斜率即可理解为声衰减值。通常，组织的特性也将影响声衰减参数，在不同的深度值的声衰减参数可能不相同。因此，可以将深度分为多个预置深度范围，如图9所示。然后根据各个预置深度范围的幅度值确定各个预置深度范围的变化率，然后对各个预置深度范围的变化率进行运算，例如，加权运算、平均值计算等等，计算得到第一区域的声衰减参数。或者，也可以直接将各个预置深度范围的变化率分别进行运算，得到各个预置深度范围的声衰减值。因此，本申请实施例可以将第一区域内分为多个预置深度范围进行计算，使计算出来的声衰减参数更准确。避免因第一区域的组织内部的特性不同，而导致计算出来的声衰减参数不能反映第一区域的组织特性。在本申请实施例中，确定声衰减参数时，无需对第一超声回波信号或第三超声回波信号中的幅度值进行放大增强，直接使用。并且，对于不同深度的声衰减参数分段进行计算，避免因目标组织内部的特性不同，而导致的声衰减参数不准确。因此，可以使得到的声衰减参数更准确。In an optional embodiment of the present application, when determining the sound attenuation parameter according to the first ultrasonic echo signal or the third ultrasonic echo signal, generally, the amplitude of the ultrasonic echo signal decreases with increasing depth, and the amplitude is converted When the unit is dB, the amplitude can be determined to decrease with increasing depth. As shown in Figure 8, the slope of the energy attenuation of the ultrasonic echo can be understood as the sound attenuation value. Generally, the characteristics of the tissue will also affect the sound attenuation parameters, and the sound attenuation parameters at different depth values may be different. Therefore, the depth can be divided into multiple preset depth ranges, as shown in FIG. 9. Then determine the change rate of each preset depth range according to the amplitude value of each preset depth range, and then calculate the change rate of each preset depth range, for example, weighted operation, average calculation, etc., to calculate the first area Sound attenuation parameters. Alternatively, the rate of change of each preset depth range can be calculated directly to obtain the sound attenuation value of each preset depth range. Therefore, in the embodiment of the present application, the first area can be divided into multiple preset depth ranges for calculation, so that the calculated sound attenuation parameter is more accurate. It is to avoid that the calculated sound attenuation parameters cannot reflect the tissue characteristics of the first area due to the different internal characteristics of the tissue in the first area. In the embodiment of the present application, when determining the sound attenuation parameter, it is not necessary to amplify and enhance the amplitude value in the first ultrasonic echo signal or the third ultrasonic echo signal and use it directly. In addition, the sound attenuation parameters at different depths are calculated in sections to avoid inaccurate sound attenuation parameters caused by different characteristics within the target tissue. Therefore, the obtained sound attenuation parameter can be made more accurate.

本申请的一个可选实施例中，在根据第一超声回波信号获取超声图像与声衰减参数时，通常需要对第一超声回波信号中所包括的参数进行不同的处理。在根据第一超声回波信号获取超声图像时，通常，为了使超声图像更清晰，会根据不同深度采用不同的放大倍数对第一超声回波信号所包括的参数进行放大增强。此外，除了放大倍数以外，其他参数也可以不同，例如，若超声图像包括彩色多普勒血流图像时，则还需要确定色彩相关的值。而在根据第一超声回波信号获取声衰减参数时，通常需要维持第一超声回波信号中各个深度的值之间的差值。又例如，在获取超声图像时，通常从第一超声回波信号中提取出谐波频率成分进行计算，而进行声衰减参数时，为了提升穿透力，通常提取基波频率进行计算。示例性地，超声图像中像素值与第一超声回波信号中的幅值之间的增益可以参考图10，随着深度的增加，增益也越大。而确定声衰减参数时，则对于第一超声回波信号中的幅值的增益如图11所示，随着深度的增加，增益无需变动。在本实施例中，确定声衰减参数与超声图像需要对第一超声回波信号进行不同处理，可以提高第一超声回波信号的利用率，并且可以更准确地获取到声衰减参数与超声图像。In an optional embodiment of the present application, when acquiring ultrasound images and sound attenuation parameters according to the first ultrasound echo signal, it is generally necessary to perform different processing on the parameters included in the first ultrasound echo signal. When acquiring an ultrasound image according to the first ultrasound echo signal, in general, in order to make the ultrasound image clearer, different magnifications are used to enlarge and enhance the parameters included in the first ultrasound echo signal according to different depths. In addition to the magnification, other parameters may also be different. For example, if the ultrasound image includes a color Doppler blood flow image, it is also necessary to determine color-related values. When acquiring the sound attenuation parameter according to the first ultrasonic echo signal, it is generally necessary to maintain the difference between the values of the various depths in the first ultrasonic echo signal. For another example, when acquiring an ultrasound image, the harmonic frequency component is usually extracted from the first ultrasound echo signal for calculation, and when performing the sound attenuation parameter, in order to improve the penetration force, the fundamental frequency is usually extracted for calculation. Exemplarily, the gain between the pixel value in the ultrasound image and the amplitude in the first ultrasound echo signal can refer to FIG. 10, and as the depth increases, the gain also increases. When determining the sound attenuation parameter, the gain for the amplitude of the first ultrasonic echo signal is shown in FIG. 11, and as the depth increases, the gain does not need to change. In this embodiment, determining the sound attenuation parameter and the ultrasound image requires different processing of the first ultrasound echo signal, which can improve the utilization rate of the first ultrasound echo signal, and can more accurately acquire the sound attenuation parameter and the ultrasound image .

本申请的一个可选实施例中，在确定声衰减参数后，还可以根据该声衰减参数得到超声图像，或者，根据该声衰减参数调整超声图像。具体地，若根据该声衰减参数得到超声图像，在得到第一超声回波信号后，根据第一超声回波信号的各个幅值，结合声衰减参数，确定目标组织的每个像素点的像素值，以及每个像素点对应的增益。然后根据每个像素点的像素值以及每个像素点对应的增益，确定每个像素点最终的像素值，得到超声图像。若根据该声衰减参数调整超声图像，则可以直接根据该声衰减参数确定超声图像中每个像素点的像素值的增益，然后根据每个像素点的增益以及像素值，确定超声图像中每个像素点最终的像素值，得到调整后的超声图像。在本申请实施例中，可以通过声衰减参数来获取超声图像，声衰减参数可以反映不同深度的组织的特性。因此，结合声衰减参数，对超声图像进行获取或调整，可以使得到超声图像更准确，更能反映目标组织的特性。In an optional embodiment of the present application, after determining the sound attenuation parameter, the ultrasound image may be obtained according to the sound attenuation parameter, or the ultrasound image may be adjusted according to the sound attenuation parameter. Specifically, if an ultrasound image is obtained according to the sound attenuation parameter, after obtaining the first ultrasound echo signal, according to each amplitude of the first ultrasound echo signal, combined with the sound attenuation parameter, the pixel of each pixel of the target tissue is determined Value, and the corresponding gain for each pixel. Then, according to the pixel value of each pixel and the corresponding gain of each pixel, the final pixel value of each pixel is determined to obtain an ultrasound image. If the ultrasound image is adjusted according to the sound attenuation parameter, the gain of the pixel value of each pixel in the ultrasound image can be directly determined according to the sound attenuation parameter, and then each of the ultrasound image can be determined according to the gain and pixel value of each pixel The final pixel value of the pixel is the adjusted ultrasound image. In the embodiment of the present application, the ultrasound image may be acquired through the sound attenuation parameter, and the sound attenuation parameter may reflect the characteristics of tissues at different depths. Therefore, the acquisition or adjustment of the ultrasound image in combination with the sound attenuation parameters can make the ultrasound image more accurate and better reflect the characteristics of the target tissue.

应理解，若根据声衰减参数得到超声图像，那么，则在向目标组织发射第一超声波的之前或者之后，得到超声图像之前，向目标组织发送第三超声波，并接收超声回波，得到第三超声回波信号。或者，若根据第一超声回波信号确定声衰减参数，则在确定声衰减参数之后，再获取超声图像。It should be understood that if an ultrasound image is obtained according to the sound attenuation parameter, then before or after the first ultrasound is transmitted to the target tissue, before the ultrasound image is obtained, the third ultrasound is sent to the target tissue and the ultrasound echo is received to obtain the third Ultrasound echo signal. Alternatively, if the sound attenuation parameter is determined according to the first ultrasound echo signal, the ultrasound image is acquired after the sound attenuation parameter is determined.

本申请的一个可选实施例中，声衰减参数可以包括第一区域的平均声衰减值、最大声衰减值或最小声衰减值中的一个或多个。In an optional embodiment of the present application, the sound attenuation parameter may include one or more of an average sound attenuation value, a maximum sound attenuation value, or a minimum sound attenuation value in the first region.

504、向目标组织传送剪切波，以及向目标组织中的第二区域发射第二超声波，并接收从第二区域返回的第二超声回波，获得第二超声回波信号。504. Transmit the shear wave to the target tissue, and transmit the second ultrasonic wave to the second area in the target tissue, and receive the second ultrasonic echo returned from the second area to obtain the second ultrasonic echo signal.

本申请实施例中，可以是通过外部振动产生剪切波，从而进行瞬时弹性成像，也可以是基于声辐射力产生剪切波，从而用于剪切波弹性成像。具体地，以振动器产生剪切波为例，可以通过前述图1中超声成像***中的振动器进行振动，从而使探头振动，并通过探头将振动产生的剪切波传送至目标组织中。以及，向目标组织中的第二区域发送第二超声波，并接收从第二区域返回的第二超声回波，获得第二超声回波信号。In the embodiment of the present application, the shear wave may be generated by external vibration to perform instantaneous elastic imaging, or the shear wave may be generated based on the acoustic radiation force, which is used for shear wave elastic imaging. Specifically, taking the vibrator for generating shear waves as an example, the vibrator in the ultrasound imaging system in FIG. 1 may be vibrated to vibrate the probe, and the shear wave generated by the vibration may be transmitted to the target tissue through the probe. And, the second ultrasonic wave is sent to the second area in the target tissue, and the second ultrasonic echo returned from the second area is received to obtain the second ultrasonic echo signal.

具体地，目标组织在剪切波的影响下，产生回弹，此时可以通过目标组织返回的第二超声回波信号，记录目标组织在剪切波的影响下的状态变化，并根据状态变化确定第二区域的弹性参数，其中，该弹性参数可以是瞬时弹性参数，也可以是剪切波弹性参数。因此，结合第二超声波与剪切波，可以准确地确定目标组织中第二区域的弹性参数。Specifically, the target tissue generates a rebound under the influence of the shear wave. At this time, the second ultrasound echo signal returned by the target tissue can be used to record the state change of the target tissue under the influence of the shear wave, and according to the state change The elastic parameters of the second region are determined, where the elastic parameters may be instantaneous elastic parameters or shear wave elastic parameters. Therefore, by combining the second ultrasonic wave and the shear wave, the elastic parameter of the second region in the target tissue can be accurately determined.

本申请的一个实施例中，发射/接收序列控制器可以生成用于激励探头产生第二超声波的第二序列。该第二序列可以包括一组或多组超声波的发射与超声回波的接收。例如，该第二序列中可以包括发射多组第二超声波，每组第二超声波的辐射间隔2ms，并在每间隔2ms之后接收第二超声波对应的第二超声回波信号等。In an embodiment of the present application, the transmit/receive sequence controller may generate a second sequence for exciting the probe to generate the second ultrasonic wave. The second sequence may include the transmission of one or more sets of ultrasound waves and the reception of ultrasound echoes. For example, the second sequence may include transmitting multiple groups of second ultrasound waves, each group of second ultrasound waves being radiated at intervals of 2 ms, and receiving a second ultrasound echo signal corresponding to the second ultrasound waves after every 2 ms interval.

本申请的一个可选实施例中，可以先发送第一超声波或第三超声波，也可以先传送剪切波以及发射第二超声波，具体可以根据实际应用场景调整。In an optional embodiment of the present application, the first ultrasonic wave or the third ultrasonic wave may be sent first, or the shear wave and the second ultrasonic wave may be transmitted first, which may be adjusted according to actual application scenarios.

示例性地，以下以时间轴为横坐标进行更形象地说明。先发送第一超声波或第三超声波可以如图12所示，可以先发送第一超声波或第三超声波，在间隔预置第一时长后，再使振动器振动，并驱动探头振动，向目标组织传送剪切波，同时发射第二超声波。先传送剪切波以及发射第二超声波的场景可以如图13所示。先使振动器振动，并驱动探头振动，通过探头向目标组织传送剪切波。同时发射第二超声波。之后才发送第一超声波或第三超声波。Exemplarily, the following uses the time axis as the abscissa to explain more vividly. The first ultrasonic wave or the third ultrasonic wave can be sent first as shown in FIG. The shear wave is transmitted while the second ultrasonic wave is emitted. The scenario where the shear wave is first transmitted and the second ultrasonic wave is transmitted may be as shown in FIG. 13. The vibrator is first vibrated, and the probe is driven to vibrate, and the shear wave is transmitted to the target tissue through the probe. Simultaneously transmit the second ultrasonic wave. After that, the first ultrasonic wave or the third ultrasonic wave is transmitted.

通常，为避免振动对目标组织的影响，可以先发送第一超声波或第三超声波，或者，在先目标组织传送剪切波，同时发射第二超声波，可以预置第二时长之后，再发送第一超声波或第二超声波，该预置第二时长可以是较长时长，以避免振动对目标组织的影响。In general, to avoid the impact of vibration on the target tissue, the first ultrasonic wave or the third ultrasonic wave can be sent first, or the target tissue transmits the shear wave and the second ultrasonic wave is transmitted at the same time, and the second time can be preset before sending the second For an ultrasonic wave or a second ultrasonic wave, the preset second duration may be a longer duration to avoid the influence of vibration on the target tissue.

此外，为提高瞬时弹性成像的准确性，可以进行多次振动以及发射第二超声波。示例性地，如图14所示，每次振动之间可以相隔预置第三时长，该预置第三时长可以设置为较长时长，以避免振动对目标组织的影响。当然，除了可以重复进行振动以及发射第二超声波外，也可以重复多次第一超声波或第三超声波的发送，以使得到的超声图像与声衰减图像更能反映目标组织的特性。In addition, in order to improve the accuracy of instantaneous elastography, multiple vibrations and second ultrasonic waves can be emitted. Exemplarily, as shown in FIG. 14, a third duration may be preset between each vibration, and the preset third duration may be set to a longer duration to avoid the impact of vibration on the target tissue. Of course, in addition to repeating the vibration and transmitting the second ultrasonic wave, the transmission of the first ultrasonic wave or the third ultrasonic wave can also be repeated multiple times, so that the resulting ultrasonic image and sound attenuation image can better reflect the characteristics of the target tissue.

本申请的一个可选实施例中，第二区域可以是接收对目标组织的输入确定，例如，在显示目标组织的超声图像后，用户可以根据显示的超声图像进行输入，选择目标组织中的部分区域作为第二区域。发射/接收序列控制器根据确定的第二区域的位置以及大小生成对应的序列参数，以激励探头产生对应的第二超声波，并向第二区域发射第二超声波。同时，振动器产生振动，驱动探头向第二区域传送剪切波。以通过第二超声波记录目标组织在剪切波下的状态。示例性地，第二区域在目标组织中的示意图可以如图15所示，第二区域处于目标组织中，第二区域的位置、大小与形状由用户选择，并通过输入设备输入。因此，在本申请实施例中，第二区域的大小、位置与形状可以有用户输入。可以更直接地确定需要计算弹性参数的区域，便于对第二区域进行观察。In an optional embodiment of the present application, the second area may be determined by receiving an input to the target tissue. For example, after displaying the ultrasound image of the target tissue, the user may input according to the displayed ultrasound image to select a part of the target tissue The area serves as the second area. The transmission/reception sequence controller generates corresponding sequence parameters according to the determined position and size of the second area, so as to excite the probe to generate the corresponding second ultrasonic wave, and transmit the second ultrasonic wave to the second area. At the same time, the vibrator generates vibrations, driving the probe to transmit shear waves to the second area. The state of the target tissue under the shear wave is recorded by the second ultrasonic wave. Exemplarily, a schematic diagram of the second area in the target tissue may be as shown in FIG. 15, the second area is in the target tissue, the position, size, and shape of the second area are selected by the user and input through an input device. Therefore, in the embodiment of the present application, the size, position and shape of the second area may be input by the user. The area where the elastic parameter needs to be calculated can be more directly determined to facilitate observation of the second area.

本申请的一个可选实施例中，第二区域还可以是根据预置规则确定的。例如，第二区域可以是获取超声图像后，确定超声图像中的像素值与周围像素值相差大于阈值的区域作为第二区域，或者将像素值分布均为的区域作为第二区域等等。此外，第二区域还可以是在超声图像中随机确定的目标组织中的任意区域。在本申请实施例中，可以根据预置规则确定第二区域，对于一些存在差异的区域，可以获取该区域的弹性参数，更能反映有差异的区域的特性。可以更全面地对目标组织的特性进行分析。In an optional embodiment of the present application, the second area may also be determined according to preset rules. For example, the second area may be an area where the difference between the pixel value in the ultrasound image and the surrounding pixel value is greater than a threshold after acquiring the ultrasound image, or an area where the pixel values are all distributed as the second area, and so on. In addition, the second area may also be any area in the target tissue randomly determined in the ultrasound image. In the embodiment of the present application, the second area may be determined according to a preset rule. For some areas with differences, the elasticity parameters of the areas may be obtained, which may better reflect the characteristics of the areas with differences. The characteristics of the target organization can be analyzed more comprehensively.

本申请的一个可选实施例中，第一区域与第二区域可以是相同的区域，也可以是第一区域包括第二区域，还可以是第二区域包括第一区域，还可以是第一区域与第二区域相互独立，具体可以根据实际应用场景调整。In an optional embodiment of the present application, the first area and the second area may be the same area, or the first area may include the second area, or the second area may include the first area, or the first area The area and the second area are independent of each other, and can be specifically adjusted according to actual application scenarios.

本申请的一个可选实施例中，还可以在超声图像中显示第二区域的标记图。首先生成与第二区域对应的标记图，例如，该标记图可以是与第二区域边界一致的标记框，也可以是与第二区域形状一直的图形等。将该标记图融合至超声图像中，以得到第二融合图像，并显示该第二融合图像。以使在显示超声图像时，更进一步显示测量了弹性参数的第二区域。使操作人员能更清楚准确地观察目标组织的特性。并且，若第二区域为用户输入确定的，可以更准确地确定弹性参数所对应的第二区域是否正确。In an optional embodiment of the present application, the marker image of the second area may also be displayed in the ultrasound image. First, a marker map corresponding to the second area is generated. For example, the marker map may be a marker frame that coincides with the boundary of the second area, or may be a shape consistent with the shape of the second area. The marked image is fused into the ultrasound image to obtain a second fused image, and the second fused image is displayed. When the ultrasound image is displayed, the second region where the elastic parameter is measured is further displayed. The operator can observe the characteristics of the target organization more clearly and accurately. Moreover, if the second area is determined by user input, it can be determined more accurately whether the second area corresponding to the elastic parameter is correct.

本申请的一个可选实施例中，在获得第二超声回波信号后，还可以根据第二超声回波信号获取剪切波的传播轨迹图，或传播曲线图，并显示该传播轨迹图或传播曲线图。示例性地，传播轨迹图可以如图16所示，可以显示剪切波在目标组织中的传播过程。传播曲线图可以如图17所示，可以显示剪切波在目标组织中的传播方向与路径。在本申请实施例中，可以显示剪切波的传播轨迹图或传播曲线图，可以直观地观察剪切波在目标组织中的传播路径，可以确定剪切波是否影响到需要确定弹性参数的区域，使得到的弹性参数更能反映目标组织的第二区域的特性。In an optional embodiment of the present application, after obtaining the second ultrasonic echo signal, a propagation trajectory graph or a propagation curve graph of the shear wave may be obtained according to the second ultrasonic echo signal, and the propagation trajectory graph or Propagation graph. Exemplarily, the propagation trajectory diagram may be as shown in FIG. 16, and may show the propagation process of the shear wave in the target tissue. The propagation curve may be as shown in FIG. 17 and may show the propagation direction and path of the shear wave in the target tissue. In the embodiment of the present application, a shear wave propagation trajectory graph or a propagation curve graph can be displayed, a shear wave propagation path in a target tissue can be visually observed, and it can be determined whether the shear wave affects an area where elastic parameters need to be determined , So that the obtained elastic parameters can better reflect the characteristics of the second area of the target tissue.

505、根据所述第二超声回波信号确定所述目标组织中的第二区域的弹性参数。505. Determine the elastic parameter of the second region in the target tissue according to the second ultrasound echo signal.

在得到第二超声回波信号后，根据第二超声回波信号确定目标组织中的第二区域的弹性参数。After obtaining the second ultrasonic echo signal, the elastic parameter of the second region in the target tissue is determined according to the second ultrasonic echo signal.

具体地，目标组织在剪切波的影响下，产生回弹。第二超声回波信号中所包括的参数，可以记录目标组织在接收到剪切波之前的状态，与接收到剪切波后的状态，计算这两个状态之间的目标组织产生的位移值，并根据该位移值确定目标组织的弹性参数。更进一步地，目标组织的弹性参数可以包括弹性系数。在相同的剪切波下，弹性系数越大，引起目标组织的位移越小；反之，弹性系数越小，引起目标组织的位移越大。Specifically, the target tissue rebounds under the influence of shear waves. The parameters included in the second ultrasonic echo signal can record the state of the target tissue before receiving the shear wave and the state after receiving the shear wave, and calculate the displacement value generated by the target tissue between the two states And determine the elastic parameters of the target tissue according to the displacement value. Furthermore, the elastic parameters of the target tissue may include elastic coefficients. Under the same shear wave, the larger the elastic coefficient, the smaller the displacement of the target tissue; conversely, the smaller the elastic coefficient, the larger the displacement of the target tissue.

本申请的一个实施例中，基于前述超声成像***10，剪切波振动器106振动，进而驱动探头100振动而产生的，与探头100垂直的波。当探头100接触目标组织时，即可将目标组织传送剪切波。剪切波可以沿传播方向为目标组织提供推力，目标组织在该推力下产生移动或变形，并由于目标组织自身的弹性，在移动或变形后回弹。因此，基于该剪切波，同时发射第二超声波。可以获取到目标组织在剪切波的影响下，产生的回弹，从而确定目标组织的弹性参数。在本申请实施例中，通过振动器振动，驱动探头振动，并将振动产生的剪切波传送至目标组织。同时发射第二超声波，并接收第二超声回波信号。因此，可以通过第二超声回波信号，记录目标组织在剪切波的推动下的形态变化，可以准确地确定目标组织的第二区域的弹性参数。当然，也可以向目标组织发射推动脉冲，根据声辐射力产生剪切波，进一步，向目标组织发射第二超声波，以跟踪该目标区域区域内传播的剪切波，并接收第二超声回波信号，根据该第二回波信号确定该目标组织的第二区域的弹性参数。In an embodiment of the present application, based on the aforementioned ultrasonic imaging system 10, the shear wave vibrator 106 vibrates, and then drives the probe 100 to vibrate, which is a wave perpendicular to the probe 100. When the probe 100 contacts the target tissue, the target tissue can transmit the shear wave. The shear wave can provide thrust to the target tissue along the propagation direction. The target tissue moves or deforms under the thrust, and due to the elasticity of the target tissue, it rebounds after the movement or deformation. Therefore, based on this shear wave, the second ultrasonic waves are simultaneously emitted. The rebound of the target tissue under the influence of shear waves can be obtained, thereby determining the elastic parameters of the target tissue. In the embodiment of the present application, the vibrator vibrates to drive the probe to vibrate, and the shear wave generated by the vibration is transmitted to the target tissue. At the same time, the second ultrasonic wave is transmitted and the second ultrasonic echo signal is received. Therefore, the shape change of the target tissue driven by the shear wave can be recorded by the second ultrasonic echo signal, and the elastic parameter of the second area of the target tissue can be accurately determined. Of course, you can also send a push pulse to the target tissue to generate a shear wave according to the acoustic radiation force. Further, send a second ultrasonic wave to the target tissue to track the shear wave propagating in the target area and receive the second ultrasonic echo Signal, the elastic parameter of the second region of the target tissue is determined according to the second echo signal.

506、显示超声图像、声衰减图像以及弹性参数。506. Display an ultrasound image, an acoustic attenuation image, and elastic parameters.

在得到超声图像、声衰减图与弹性参数后，可以在显示器中显示该超声图像、声衰减图像以及弹性参数。After obtaining the ultrasound image, the sound attenuation map and the elastic parameters, the ultrasound image, the sound attenuation image and the elastic parameters can be displayed on the display.

示例性地，如图18所示，在显示器中同时显示超声图像、声衰减图像以及弹性参数。可选地，也可以显示声衰减参数。可选地，还可以显示第二区域的标记图。Exemplarily, as shown in FIG. 18, the ultrasound image, the sound attenuation image, and the elasticity parameter are simultaneously displayed in the display. Optionally, the sound attenuation parameters can also be displayed. Optionally, a marker image of the second area may also be displayed.

在本申请中，可以同时显示超声图像、声衰减图像与弹性参数，该弹性参数可以是目标组织中第二区域的参数。因此，可以基于超声图像与声衰减图像，对目标组织的局部的弹性参数弹性实现更直观地显示。使操作人员可以根据显示的超声图像、声衰减图像与弹性参数对目标组织的局部进行更准确的观察。In the present application, the ultrasound image, the sound attenuation image and the elasticity parameter may be displayed at the same time, and the elasticity parameter may be the parameter of the second region in the target tissue. Therefore, the elasticity of the local elastic parameters of the target tissue can be more intuitively displayed based on the ultrasound image and the sound attenuation image. The operator can make a more accurate observation of the target tissue according to the displayed ultrasound image, sound attenuation image and elastic parameters.

前述对本申请提供的超声成像***与超声成像方法进行了详细说明，本申请还提供另一种超声成像***与超声成像方法。请参阅图19，本申请实施例提供的另一种可能的超声成像***的结构框图示意图。The foregoing describes the ultrasound imaging system and ultrasound imaging method provided in this application in detail, and this application also provides another ultrasound imaging system and ultrasound imaging method. Please refer to FIG. 19, which is a schematic structural block diagram of another possible ultrasound imaging system provided by an embodiment of the present application.

图19为本申请实施例中的超声成像***190的结构框图示意图。该超声成像***190可以包括探头1900，其中，该探头1900可以是超声探头、发射/接收选择开关1901、发射/接收序列控制器1902、处理器1903、显示器1904。在有些实施例中，该超声成像***190还包括振动器1906。发射/接收序列控制器1902可以激励超声探头1900向目标组织发射超声波，还可以控制超声探头1900接收从目标组织返回的超声回波，从而获得超声回波信号/数据。处理器1903对该超声回波信号/数据进行处理，以获得目标组织的组织相关参数和超声图像。处理器1903获得的超声图像可以存储于存储器1905中，这些超声图像可以在显示器1904上显示。FIG. 19 is a schematic structural block diagram of an ultrasound imaging system 190 in an embodiment of the present application. The ultrasound imaging system 190 may include a probe 1900, wherein the probe 1900 may be an ultrasound probe, a transmission/reception selection switch 1901, a transmission/reception sequence controller 1902, a processor 1903, and a display 1904. In some embodiments, the ultrasound imaging system 190 further includes a vibrator 1906. The transmit/receive sequence controller 1902 can excite the ultrasound probe 1900 to transmit ultrasound waves to the target tissue, and can also control the ultrasound probe 1900 to receive the ultrasound echo returned from the target tissue, thereby obtaining ultrasound echo signals/data. The processor 1903 processes the ultrasound echo signal/data to obtain tissue-related parameters and ultrasound images of the target tissue. The ultrasound images obtained by the processor 1903 may be stored in the memory 1905, and these ultrasound images may be displayed on the display 1904.

其中，振动器1906为可选的部件。振动器1906可以安装于探头1900内部，也可以设置于探头1900外部。振动器1906可以用于产生特定波形的振动，即剪切波，并使探头1900振动。该振动器1906可以用于获取弹性参数时产生振动，并驱动探头1900振动。在有些实施例中，无需振动器产生剪切波，直接根据声辐射力产生剪切波，从而用于剪切波弹性成像或者弹性测量等。Among them, the vibrator 1906 is an optional component. The vibrator 1906 may be installed inside the probe 1900 or may be installed outside the probe 1900. The vibrator 1906 can be used to generate a specific waveform of vibration, that is, a shear wave, and cause the probe 1900 to vibrate. The vibrator 1906 can be used to generate vibration when acquiring elastic parameters and drive the probe 1900 to vibrate. In some embodiments, there is no need for a vibrator to generate a shear wave, and the shear wave is directly generated according to the acoustic radiation force, which is used for shear wave elastic imaging or elastic measurement.

本申请实施例中提供的超声成像***所包括的部件以及部件的功能，与前述图1中的超声成像***类似，此处不再赘述。The components and the functions of the components included in the ultrasound imaging system provided in the embodiments of the present application are similar to the ultrasound imaging system in FIG. 1 described above, and details are not described herein again.

下面基于前述图19的超声成像***，对本申请提供的另一种超声成像方法进行详细描述，请参阅图20，本申请实施例提供的一种超声成像方法，该方法应用于超声成像***190，特别适用于包含触摸显示屏的超声成像***190，用于可以利用接触触摸显示屏来输入触屏操作。该超声成像***190可利用超声回波数据生成弹性图像，也可以利用超声回波数据生成常规的超声B图像或者多普勒图像等等。本申请中的超声成像方法实施例包括：Next, based on the aforementioned ultrasound imaging system of FIG. 19, another ultrasound imaging method provided by the present application will be described in detail. Please refer to FIG. 20. An ultrasound imaging method provided by an embodiment of the present application is applied to the ultrasound imaging system 190. It is particularly suitable for an ultrasound imaging system 190 that includes a touch display screen, and can be used to input touch screen operations using a touch touch display screen. The ultrasound imaging system 190 may use ultrasound echo data to generate an elastic image, or may use ultrasound echo data to generate a conventional ultrasound B image or a Doppler image, and so on. Embodiments of the ultrasound imaging method in this application include:

2001、向目标组织发射第一超声波，并接收从目标组织返回的第一超声回波，获得第一超声回波信号。In 2001, the first ultrasonic wave is transmitted to the target tissue, and the first ultrasonic echo returned from the target tissue is received to obtain the first ultrasonic echo signal.

2002、根据第一超声回波信号获取目标组织的超声图像。2002. Acquire an ultrasound image of the target tissue according to the first ultrasound echo signal.

2003、获取目标组织中第一区域的声衰减图像。2003. Acquire the sound attenuation image of the first area in the target tissue.

需要说明的是，本申请实施例中的步骤2001至步骤2003与前述图5中的步骤501至步骤503类似，此处不再赘述。It should be noted that steps 2001 to 2003 in the embodiment of the present application are similar to steps 501 to 503 in FIG. 5 described above, and will not be repeated here.

2004、显示超声图像与声衰减图像。2004, display ultrasound image and sound attenuation image.

在本申请实施例中，在获取超声图像与声衰减图像后，在显示器中显示该超声图像与声衰减图像。In the embodiment of the present application, after acquiring the ultrasound image and the sound attenuation image, the ultrasound image and the sound attenuation image are displayed on the display.

具体地，本申请实施例中显示的超声图像与声衰减图像可以如图21所示，其中，包括超声图像2101与声衰减图像2102。可以理解为，声衰减图像与超声图像融合，得到第一融合图像并显示，第一融合图像即图21中显示的超声图像与声衰减图像的叠加。此外，声衰减图像与超声图像还可以分开显示，即图21中的2101与2102分开显示，此处不作赘述。Specifically, the ultrasound image and the sound attenuation image displayed in the embodiment of the present application may be as shown in FIG. 21, which includes the ultrasound image 2101 and the sound attenuation image 2102. It can be understood that the sound attenuation image and the ultrasound image are fused to obtain and display the first fusion image, and the first fusion image is the superimposition of the ultrasound image and the sound attenuation image shown in FIG. 21. In addition, the sound attenuation image and the ultrasound image can also be displayed separately, that is, 2101 and 2102 in FIG. 21 are displayed separately, and details are not described here.

在本申请实施例中，在超声图像的基础上，进一步获取声衰减图像并显示，相对于仅显示声衰减参数，本申请通过声衰减图像地形式可以更直观地显示目标组织的声衰减特性。并且基于超声图像，可以使操作人员更清楚地观察目标组织的声衰减图像与超声图像。In the embodiment of the present application, on the basis of the ultrasound image, an acoustic attenuation image is further acquired and displayed. Compared with displaying only the acoustic attenuation parameters, the present application can more intuitively display the acoustic attenuation characteristics of the target tissue in the form of an acoustic attenuation image. And based on the ultrasound image, the operator can more clearly observe the sound attenuation image and ultrasound image of the target tissue.

本申请的一个可选实施例中，当将声衰减图像与超声图像融合，以得到第一融合图像，并显示第一融合图像时，还可以同时显示声衰减参数。示例性地，如图22所示，可以在显示器中显示：“声衰减参数：XXX”。In an optional embodiment of the present application, when the sound attenuation image and the ultrasound image are fused to obtain the first fused image, and the first fused image is displayed, the sound attenuation parameter may also be displayed at the same time. Exemplarily, as shown in FIG. 22, "Sound attenuation parameter: XXX" may be displayed in the display.

本申请的一个可选实施例中，除了获取超声图像与声衰减图像并显示外，还可以获取弹性参数，并显示该弹性参数。其中，该弹性参数可以是瞬时弹性参数，也可以是剪切波弹性参数。以瞬时弹性参数为例，具体地，振动器振动，并驱动探头振动，并产生剪切波。向目标组织传送该剪切波，以及向目标组织中的第二区域发射第二超声波，并接收从第二区域返回的第二超声回波，获得第二超声回波信号。根据该第二超声回波信号获取第二区域的弹性参数，并在显示器中显示该第二区域的弹性参数。In an optional embodiment of the present application, in addition to acquiring and displaying ultrasound images and sound attenuation images, elastic parameters can also be acquired and displayed. The elastic parameter may be an instantaneous elastic parameter or a shear wave elastic parameter. Taking the instantaneous elastic parameter as an example, specifically, the vibrator vibrates and drives the probe to vibrate, and generates a shear wave. The shear wave is transmitted to the target tissue, and the second ultrasonic wave is transmitted to the second area in the target tissue, and the second ultrasonic echo returned from the second area is received to obtain the second ultrasonic echo signal. Obtain the elastic parameters of the second area according to the second ultrasonic echo signal, and display the elastic parameters of the second area on the display.

更具体地，获取弹性参数，并显示超声图像、声衰减图像与弹性参数等步骤与前述图5中的步骤504至步骤506类似，此处不再赘述。在本申请实施例中，在显示超声图像与声衰减图像的基础上，进一步显示弹性参数，因此，可以更直观地显示声衰减图像与弹性参数，并结合超声图像，更有利于对目标组织的声衰减图像与弹性参数进行观察。More specifically, the steps of acquiring elastic parameters, and displaying ultrasound images, sound attenuation images, and elastic parameters are similar to steps 504 to 506 in FIG. 5 described above, and are not repeated here. In the embodiment of the present application, the elastic parameters are further displayed on the basis of displaying the ultrasound image and the sound attenuation image. Therefore, the sound attenuation image and the elastic parameter can be displayed more intuitively, and combined with the ultrasound image, it is more conducive to the target tissue Observe the sound attenuation image and elastic parameters.

在本申请所提供的几个实施例中，应该理解到，所揭露的***，装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个***，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。In the several embodiments provided in this application, it should be understood that the disclosed system, device, and method may be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a division of logical functions. In actual implementation, there may be other divisions, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.

所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit. The above integrated unit may be implemented in the form of hardware or software functional unit.

所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application essentially or part of the contribution to the existing technology or all or part of the technical solution can be embodied in the form of a software product, the computer software product is stored in a storage medium , Including several instructions to enable a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code .

需要说明的是，实际应用中，目标组织可以是人体、动物等。目标组织可以为面部、脊柱、心脏、子宫或者盆底等，也可以是人体组织的其他部位，如脑部、骨骼、肝脏或者肾脏等，具体本申请不做限定。It should be noted that in practical applications, the target tissue may be a human body, an animal, or the like. The target tissue may be the face, spine, heart, uterus, or pelvic floor, or other parts of the human tissue, such as the brain, bones, liver, or kidney, which is not specifically limited in this application.

以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。The above is only the specific implementation of this application, but the scope of protection of this application is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in this application. It should be covered by the scope of protection of this application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

一种超声成像方法，其特征在于，包括：An ultrasound imaging method, characterized in that it includes:

向目标组织发射第一超声波，并接收从所述目标组织返回的第一超声回波，获得第一超声回波信号；Transmitting a first ultrasonic wave to a target tissue, and receiving a first ultrasonic echo returned from the target tissue, to obtain a first ultrasonic echo signal;

根据所述第一超声回波信号获取所述目标组织的超声图像；Acquiring an ultrasound image of the target tissue according to the first ultrasound echo signal;

获取所述目标组织中第一区域的声衰减图像；Acquiring an acoustic attenuation image of the first area in the target tissue;

向所述目标组织传送剪切波，以及向所述目标组织中的第二区域发射第二超声波，并接收从所述第二区域返回的第二超声回波，获得第二超声回波信号，所述剪切波用于使所述目标组织振动；Transmitting a shear wave to the target tissue, and transmitting a second ultrasonic wave to a second area in the target tissue, and receiving a second ultrasonic echo returned from the second area to obtain a second ultrasonic echo signal, The shear wave is used to vibrate the target tissue;

根据所述第二超声回波信号确定所述目标组织中的第二区域的弹性参数；Determining the elastic parameter of the second region in the target tissue according to the second ultrasonic echo signal;

显示所述超声图像、所述声衰减图像以及所述弹性参数。The ultrasound image, the sound attenuation image, and the elasticity parameter are displayed.
根据权利要求1所述的方法，其特征在于，在所述获取所述目标组织中第一区域的声衰减图像之前，所述方法还包括：The method according to claim 1, wherein before the acquiring the sound attenuation image of the first region in the target tissue, the method further comprises:

根据所述第一超声回波信号在所述第一区域内的各个预置深度范围的幅度值确定所述目标组织中第一区域的声衰减参数；Determining the sound attenuation parameter of the first region in the target tissue according to the amplitude values of the first preset echo range of the first ultrasound echo signal in the first region;

所述获取所述目标组织中第一区域的声衰减图像，包括：The acquiring the sound attenuation image of the first area in the target tissue includes:

将所述声衰减参数进行彩色编码，以得到所述声衰减图像。Color coding the sound attenuation parameters to obtain the sound attenuation image.
根据权利要求1所述的方法，其特征在于，在所述获取所述目标组织中第一区域的声衰减图像之前，所述方法还包括：The method according to claim 1, wherein before the acquiring the sound attenuation image of the first region in the target tissue, the method further comprises:

向所述第一区域发送第三超声波，并收从所述目标组织返回的第三超声回波，获得第三超声回波信号；Sending a third ultrasonic wave to the first area, and receiving a third ultrasonic echo returned from the target tissue to obtain a third ultrasonic echo signal;

根据所述第三超声回波信号在所述第一区域内的各个预置深度范围的幅度值确定所述第一区域的声衰减参数；Determine the sound attenuation parameter of the first area according to the amplitude value of each preset depth range of the third ultrasonic echo signal in the first area;

所述获取所述目标组织中第一区域的声衰减图像，包括：The acquiring the sound attenuation image of the first area in the target tissue includes:

将所述声衰减参数进行彩色编码，以得到所述声衰减图像。Color coding the sound attenuation parameters to obtain the sound attenuation image.
根据权利要求2或3所述的方法，其特征在于，所述根据所述第一超声回波信号获取所述目标组织的超声图像，包括：The method according to claim 2 or 3, wherein the acquiring an ultrasound image of the target tissue according to the first ultrasound echo signal includes:

根据所述第一超声回波信号确定所述目标组织的每个像素值；Determine each pixel value of the target tissue according to the first ultrasound echo signal;

根据所述声衰减参数确定对所述目标组织的每个像素值的增益；Determine the gain to each pixel value of the target tissue according to the sound attenuation parameter;

根据所述目标组织的每个像素值以及对应的增益，得到所述超声图像。According to each pixel value of the target tissue and the corresponding gain, the ultrasound image is obtained.
根据权利要求2或3所述的方法，其特征在于，所述超声图像为灰阶图像，所述根据所述第一超声回波信号获取所述目标组织的超声图像，包括：The method according to claim 2 or 3, wherein the ultrasound image is a grayscale image, and the acquiring the ultrasound image of the target tissue according to the first ultrasound echo signal includes:

根据所述第一超声回波信号与预置的权重信息，确定所述目标组织的每个像素值；Determine each pixel value of the target tissue according to the first ultrasound echo signal and preset weight information;

根据所述目标组织的每个像素值，得到所述灰阶图像。According to each pixel value of the target tissue, the gray-scale image is obtained.
根据权利要求2或3所述的方法，其特征在于，所述超声图像包括彩色多普勒血流图像，所述根据所述第一超声回波信号获取所述目标组织的超声图像，包括：The method according to claim 2 or 3, wherein the ultrasound image includes a color Doppler blood flow image, and the acquiring the ultrasound image of the target tissue according to the first ultrasound echo signal includes:

根据所述第一超声回波信号进行彩色多普勒血流成像，得到所述彩色多普勒血流图像。Perform color Doppler blood flow imaging according to the first ultrasound echo signal to obtain the color Doppler blood flow image.
根据权利要求1-6中任一项所述的方法，其特征在于，所述方法还包括：The method according to any one of claims 1-6, wherein the method further comprises:

将所述声衰减图像与所述超声图像融合，以得到第一融合图像；Fuse the sound attenuation image with the ultrasound image to obtain a first fusion image;

显示所述第一融合图像。The first fusion image is displayed.
根据权利要求1-7中任一项所述的方法，其特征在于，在所述向所述目标组织发射第二超声波，以及向所述目标组织传送剪切波之前，所述方法还包括：The method according to any one of claims 1-7, characterized in that before the second ultrasonic wave is transmitted to the target tissue and the shear wave is transmitted to the target tissue, the method further comprises:

接收对所述目标组织输入参数，根据所述输入参数在所述目标组织中确定所述第二区域；Receiving input parameters to the target tissue, and determining the second region in the target tissue according to the input parameters;

或，or,

根据预置规则，从所述目标组织中确定所述第二区域。According to a preset rule, the second area is determined from the target organization.
根据权利要求1-8中任一项所述的方法，其特征在于，所述方法还包括：The method according to any one of claims 1-8, wherein the method further comprises:

生成与所述第二区域对应的标记图；Generating a mark map corresponding to the second area;

将所述标记图融合至所述超声图像，以得到第二融合图像；Fuse the marked image to the ultrasound image to obtain a second fused image;

显示所述第二融合图像。The second fusion image is displayed.
根据权利要求1-9中任一项所述的方法，其特征在于，所述声衰减参数包括：所述第一区域的平均声衰减值、最大声衰减值或最小声衰减值中的至少一个。The method according to any one of claims 1-9, wherein the sound attenuation parameter comprises: at least one of an average sound attenuation value, a maximum sound attenuation value, or a minimum sound attenuation value of the first region .
根据权利要求1-10中任一项所述的方法，其特征在于，所述方法还包括：The method according to any one of claims 1-10, wherein the method further comprises:

根据所述第二超声回波信号，获取所述剪切波的传播轨迹图或传播路线曲线图，并显示所述传播轨迹图或所述传播路线曲线图。According to the second ultrasonic echo signal, acquire a propagation trajectory graph or a propagation route curve graph of the shear wave, and display the propagation trajectory graph or the propagation route curve graph.
一种超声成像方法，其特征在于，包括：An ultrasound imaging method, characterized in that it includes:

向目标组织发射第一超声波，并接收从所述目标组织返回的第一超声回波，获得第一超声回波信号；Transmitting a first ultrasonic wave to a target tissue, and receiving a first ultrasonic echo returned from the target tissue, to obtain a first ultrasonic echo signal;

根据所述第一超声回波信号获取所述目标组织的超声图像；Acquiring an ultrasound image of the target tissue according to the first ultrasound echo signal;

获取所述目标组织中第一区域的声衰减图像；Acquiring an acoustic attenuation image of the first area in the target tissue;

显示所述超声图像与所述声衰减图像。Displaying the ultrasound image and the sound attenuation image.
根据权利要求12所述的方法，其特征在于，所述方法还包括：The method of claim 12, wherein the method further comprises:

向所述目标组织传送剪切波，以及向所述目标组织中的第二区域发射第二超声波，并接收从所述第二区域返回的第二超声回波，获得第二超声回波信号，所述剪切波用于使所述目标组织振动；Transmitting a shear wave to the target tissue, and transmitting a second ultrasonic wave to a second area in the target tissue, and receiving a second ultrasonic echo returned from the second area to obtain a second ultrasonic echo signal, The shear wave is used to vibrate the target tissue;

根据所述第二超声回波信号确定所述目标组织中的第二区域的弹性参数；Determining the elastic parameter of the second region in the target tissue according to the second ultrasonic echo signal;

显示所述弹性参数。The elasticity parameter is displayed.
根据权利要求12或13所述的方法，其特征在于，在所述获取所述目标组织中第一区域的声衰减图像之前，所述方法还包括：The method according to claim 12 or 13, wherein before the acquiring the sound attenuation image of the first region in the target tissue, the method further comprises:

根据所述第一超声回波信号在所述第一区域内的各个预置深度范围的幅度值确定所述目标组织中第一区域的声衰减参数；Determining the sound attenuation parameter of the first region in the target tissue according to the amplitude values of the first preset echo range of the first ultrasound echo signal in the first region;

所述获取所述目标组织中第一区域的声衰减图像，包括：The acquiring the sound attenuation image of the first area in the target tissue includes:

将所述声衰减参数进行彩色编码，得到所述声衰减图像。Color coding the sound attenuation parameter to obtain the sound attenuation image.
根据权利要求12或13所述的方法，其特征在于，在所述获取所述目标组织中第一区域的声衰减图像之前，所述方法还包括：The method according to claim 12 or 13, wherein before the acquiring the sound attenuation image of the first region in the target tissue, the method further comprises:

向所述第一区域发送第三超声波，并收从所述目标组织返回的第三超声回波，获得第三超声回波信号；Sending a third ultrasonic wave to the first area, and receiving a third ultrasonic echo returned from the target tissue to obtain a third ultrasonic echo signal;

根据所述第三超声回波信号在所述第一区域内的各个预置深度范围的幅度值确定所述第一区域的声衰减参数；Determine the sound attenuation parameter of the first area according to the amplitude value of each preset depth range of the third ultrasonic echo signal in the first area;

所述获取所述目标组织中第一区域的声衰减图像，包括：The acquiring the sound attenuation image of the first area in the target tissue includes:

将所述声衰减参数进行彩色编码，以得到所述声衰减图像。Color coding the sound attenuation parameters to obtain the sound attenuation image.
根据权利要求14或15所述的方法，所述根据所述第一超声回波信号获取所述目标组织的超声图像，包括：The method according to claim 14 or 15, the acquiring the ultrasound image of the target tissue according to the first ultrasound echo signal includes:

根据所述第一超声回波信号确定所述目标组织的每个像素值；Determine each pixel value of the target tissue according to the first ultrasound echo signal;

根据所述声衰减参数确定对所述目标组织的每个像素值的增益；Determine the gain to each pixel value of the target tissue according to the sound attenuation parameter;

根据所述目标组织的每个像素值以及对应的增益，得到所述超声图像。According to each pixel value of the target tissue and the corresponding gain, the ultrasound image is obtained.
根据权利要求12-16中任一项所述的方法，其特征在于，所述超声图像包括彩色多普勒血流图像，所述根据所述第一超声回波信号获取所述目标组织的超声图像，包括：The method according to any one of claims 12-16, wherein the ultrasound image includes a color Doppler blood flow image, and the ultrasound of the target tissue is acquired according to the first ultrasound echo signal Images, including:

根据所述第一超声回波信号进行彩色多普勒血流成像，得到所述彩色多普勒血流图像。Perform color Doppler blood flow imaging according to the first ultrasound echo signal to obtain the color Doppler blood flow image.
一种超声成像***，其特征在于，包括：探头、发射/接收序列电路、处理器以及显示器；An ultrasound imaging system is characterized by comprising: a probe, a transmission/reception sequence circuit, a processor and a display;

所述发射/接收序列电路，用于激励所述探头产生第一超声波；The transmit/receive sequence circuit is used to excite the probe to generate the first ultrasonic wave;

所述探头，用于向目标组织发射所述第一超声波，并接收从所述目标组织返回的第一超声回波，获得第一超声回波信号；The probe is used to transmit the first ultrasonic wave to the target tissue, and receive the first ultrasonic echo returned from the target tissue to obtain the first ultrasonic echo signal;

所述处理器，用于根据所述第一超声回波信号获取所述目标组织的超声图像，获取所述目标组织中第一区域的声衰减图像；The processor is configured to acquire an ultrasound image of the target tissue according to the first ultrasound echo signal, and acquire an acoustic attenuation image of a first area in the target tissue;

所述发射/接收序列电路，还用于激励所述探头产生第二超声波；The transmit/receive sequence circuit is also used to excite the probe to generate second ultrasonic waves;

所述探头，还用于向所述目标组织传送剪切波，以及向所述目标组织中的第二区域发射所述第二超声波，并接收从所述第二区域返回的第二超声回波，获得第二超声回波信号，所述剪切波用于使所述目标组织振动；The probe is also used to transmit a shear wave to the target tissue, and to emit the second ultrasonic wave to a second area in the target tissue and receive a second ultrasonic echo returned from the second area To obtain a second ultrasonic echo signal, and the shear wave is used to vibrate the target tissue;

所述处理器，还用于根据所述第二超声回波信号确定所述目标组织中的第二区域的弹性参数；The processor is further configured to determine the elastic parameter of the second region in the target tissue according to the second ultrasound echo signal;

所述显示器，用于显示所述超声图像、所述声衰减图像以及所述弹性参数。The display is used to display the ultrasound image, the sound attenuation image, and the elasticity parameter.
根据权利要求18所述的超声成像***，其特征在于，The ultrasound imaging system according to claim 18, characterized in that

所述处理器，还用于在所述获取所述目标组织中第一区域的声衰减图像之前，根据所述第一超声回波信号在所述第一区域内的各个预置深度范围的幅度值确定所述目标组织中第一区域的声衰减参数；The processor is further configured to, according to the amplitude of each preset depth range in the first area of the first ultrasound echo signal, before acquiring the sound attenuation image of the first area in the target tissue Value determines the sound attenuation parameter of the first region in the target tissue;

所述处理器具体用于将所述声衰减参数进行彩色编码，以得到所述声衰减图像。The processor is specifically configured to color-code the sound attenuation parameter to obtain the sound attenuation image.
根据权利要求18所述的超声成像***，其特征在于，The ultrasound imaging system according to claim 18, characterized in that

所述发射/接收序列电路还用于激励所述探头产生第三超声波；The transmit/receive sequence circuit is also used to excite the probe to generate a third ultrasonic wave;

所述探头还用于向所述第一区域发送第三超声波，并收从所述目标组织返回的第三超声回波，获得第三超声回波信号；The probe is also used to send a third ultrasonic wave to the first area and receive a third ultrasonic echo returned from the target tissue to obtain a third ultrasonic echo signal;

所述处理器还用于根据所述第三超声回波信号在所述第一区域内的各个预置深度范围的幅度值确定所述第一区域的声衰减参数；The processor is further configured to determine the sound attenuation parameter of the first area according to the amplitude value of each preset depth range of the third ultrasonic echo signal in the first area;

所述处理器具体用于将所述声衰减参数进行彩色编码，以得到所述声衰减图像。The processor is specifically configured to color-code the sound attenuation parameter to obtain the sound attenuation image.
根据权利要求19或20所述的超声成像***，其特征在于，所述处理器，具体用于：The ultrasound imaging system according to claim 19 or 20, wherein the processor is specifically configured to:

根据所述第一超声回波信号确定所述目标组织的每个像素值；Determine each pixel value of the target tissue according to the first ultrasound echo signal;

根据所述声衰减参数确定对所述目标组织的每个像素值的增益；Determine the gain to each pixel value of the target tissue according to the sound attenuation parameter;

根据所述目标组织的每个像素值以及对应的增益，得到所述超声图像。According to each pixel value of the target tissue and the corresponding gain, the ultrasound image is obtained.
根据权利要求19或20所述的超声成像***，其特征在于，所述超声图像为灰阶图像，所述处理器，具体用于：The ultrasound imaging system according to claim 19 or 20, wherein the ultrasound image is a grayscale image, and the processor is specifically configured to:

根据所述第一超声回波信号与预置的权重信息，确定所述目标组织的每个像素值；Determine each pixel value of the target tissue according to the first ultrasound echo signal and preset weight information;

根据所述目标组织的每个像素值，得到所述灰阶图像。According to each pixel value of the target tissue, the gray-scale image is obtained.
根据权利要求19或20所述的超声成像***，其特征在于，所述超声图像包括彩色多普勒血流图像，所述处理器，具体用于：The ultrasound imaging system according to claim 19 or 20, wherein the ultrasound image includes a color Doppler blood flow image, and the processor is specifically configured to:

根据所述第一超声回波信号进行彩色多普勒血流成像，得到所述彩色多普勒血流图像。Perform color Doppler blood flow imaging according to the first ultrasound echo signal to obtain the color Doppler blood flow image.
根据权利要求18-23中任一项所述的超声成像***，其特征在于，The ultrasound imaging system according to any one of claims 18 to 23, characterized in that

所述处理器，还用于将所述声衰减图像与所述超声图像融合，以得到第一融合图像；The processor is further configured to fuse the sound attenuation image and the ultrasound image to obtain a first fusion image;

所述显示器，还用于显示所述第一融合图像。The display is also used to display the first fusion image.
根据权利要求18-24中任一项所述的超声成像***，其特征在于，The ultrasound imaging system according to any one of claims 18-24, characterized in that

所述处理器，还用于在所述向所述目标组织发射第二超声波，以及向所述目标组织传送剪切波之前，接收对所述目标组织输入参数，根据所述输入参数在所述目标组织中确定所述第二区域；The processor is further configured to receive an input parameter to the target tissue before the second ultrasonic wave is transmitted to the target tissue and the shear wave is transmitted to the target tissue, according to the input parameter in the The second area is determined in the target organization;

或，or,

根据预置规则，从所述目标组织中确定所述第二区域。According to a preset rule, the second area is determined from the target organization.
根据权利要求18-25中任一项所述的超声成像***，其特征在于，The ultrasound imaging system according to any one of claims 18-25, wherein

所述处理器，还用于生成与所述第二区域对应的标记图，将所述标记图融合至所述超声图像，以得到第二融合图像；The processor is further configured to generate a marker map corresponding to the second area, and fuse the marker map to the ultrasound image to obtain a second fusion image;

所述显示器，还用于显示所述第二融合图像。The display is also used to display the second fusion image.
根据权利要求18-26中任一项所述的超声成像***，其特征在于，The ultrasound imaging system according to any one of claims 18-26, characterized in that

所述声衰减参数包括：所述第一区域的平均声衰减值、最大声衰减值或最小声衰减值中的至少一个。The sound attenuation parameter includes: at least one of an average sound attenuation value, a maximum sound attenuation value, or a minimum sound attenuation value of the first region.
根据权利要求18-27中任一项所述的超声成像***，其特征在于，The ultrasound imaging system according to any one of claims 18-27, characterized in that

所述处理器，还用于根据所述第二超声回波信号，获取所述剪切波的传播轨迹图或传播路线曲线图；The processor is further configured to obtain a propagation trajectory graph or a propagation route curve graph of the shear wave according to the second ultrasonic echo signal;

所述显示器，还用于显示所述传播轨迹图或所述传播路线曲线图。The display is also used to display the propagation trajectory graph or the propagation route curve graph.
一种超声成像***，其特征在于，包括：探头、发射/接收序列电路、处理器以及显示器；An ultrasound imaging system is characterized by comprising: a probe, a transmission/reception sequence circuit, a processor and a display;

所述发射/接收序列电路，用于激励所述探头产生第一超声波；The transmit/receive sequence circuit is used to excite the probe to generate the first ultrasonic wave;

所述探头，用于向目标组织发射所述第一超声波，并接收从所述目标组织返回的第一超声回波，获得第一超声回波信号；The probe is used to transmit the first ultrasonic wave to the target tissue, and receive the first ultrasonic echo returned from the target tissue to obtain the first ultrasonic echo signal;

所述处理器，用于根据所述第一超声回波信号获取所述目标组织的超声图像，获取所述目标组织中第一区域的声衰减图像；The processor is configured to acquire an ultrasound image of the target tissue according to the first ultrasound echo signal, and acquire an acoustic attenuation image of a first area in the target tissue;

所述显示器，用于显示所述超声图像与所述声衰减图像。The display is used to display the ultrasound image and the sound attenuation image.
根据权利要求29所述的超声成像***，其特征在于，The ultrasound imaging system according to claim 29, characterized in that

所述发射/接收序列电路，还用于激励所述探头产生第二超声波；The transmit/receive sequence circuit is also used to excite the probe to generate second ultrasonic waves;

所述探头，还用于向所述目标组织传送剪切波，以及向所述目标组织中的第二区域发射所述第二超声波，并接收从所述第二区域返回的第二超声回波，获得第二超声回波信号，所述剪切波用于使所述目标组织振动；The probe is also used to transmit a shear wave to the target tissue, and to emit the second ultrasonic wave to a second area in the target tissue and receive a second ultrasonic echo returned from the second area To obtain a second ultrasonic echo signal, and the shear wave is used to vibrate the target tissue;

所述处理器，还用于根据所述第二超声回波信号确定所述目标组织中的第二区域的弹性参数；The processor is further configured to determine the elastic parameter of the second region in the target tissue according to the second ultrasound echo signal;

所述显示器，还用于显示所述弹性参数。The display is also used to display the elastic parameter.
根据权利要求29或30所述的超声成像***，其特征在于，The ultrasound imaging system according to claim 29 or 30, characterized in that

所述处理器，还用于在所述获取所述目标组织中第一区域的声衰减图像之前，根据所述第一超声回波信号在所述第一区域内的各个预置深度范围的幅度值确定所述目标组织中第一区域的声衰减参数；The processor is further configured to, according to the amplitude of each preset depth range in the first area of the first ultrasound echo signal, before acquiring the sound attenuation image of the first area in the target tissue Value determines the sound attenuation parameter of the first region in the target tissue;

所述处理器，具体用于将所述声衰减参数进行彩色编码，得到所述声衰减图像。The processor is specifically configured to color-code the sound attenuation parameter to obtain the sound attenuation image.
根据权利要求29或30所述的超声成像***，其特征在于，在所述获取所述目标组织中第一区域的声衰减图像之前，The ultrasound imaging system according to claim 29 or 30, wherein before acquiring the sound attenuation image of the first region in the target tissue,

所述发射/接收序列电路，还用于激励所述探头产生第三超声波；The transmit/receive sequence circuit is also used to excite the probe to generate third ultrasonic waves;

所述探头，还用于向所述第一区域发送第三超声波，并收从所述目标组织返回的第三超声回波，获得第三超声回波信号；The probe is also used to send a third ultrasonic wave to the first area and receive a third ultrasonic echo returned from the target tissue to obtain a third ultrasonic echo signal;

所述处理器，还用于根据所述第三超声回波信号在所述第一区域内的各个预置深度范围的幅度值确定所述第一区域的声衰减参数，将所述声衰减参数进行彩色编码，以得到所述声衰减图像。The processor is further configured to determine the sound attenuation parameter of the first area according to the amplitude value of each preset depth range of the third ultrasonic echo signal in the first area, and to convert the sound attenuation parameter Color coding is performed to obtain the sound attenuation image.
根据权利要求29或30所述的超声成像***，其特征在于，所述处理器，具体用于：The ultrasound imaging system according to claim 29 or 30, wherein the processor is specifically configured to:

根据所述第一超声回波信号确定所述目标组织的每个像素值；Determine each pixel value of the target tissue according to the first ultrasound echo signal;

根据所述声衰减参数确定对所述目标组织的每个像素值的增益；Determine the gain to each pixel value of the target tissue according to the sound attenuation parameter;

根据所述目标组织的每个像素值以及对应的增益，得到所述超声图像。According to each pixel value of the target tissue and the corresponding gain, the ultrasound image is obtained.
根据权利要求29-33中任一项所述的超声成像***，其特征在于，所述超声图像包括彩色多普勒血流图像，The ultrasound imaging system according to any one of claims 29 to 33, wherein the ultrasound image includes a color Doppler blood flow image,

所述处理器，具体用于根据所述第一超声回波信号进行彩色多普勒血流成像，得到所述彩色多普勒血流图像。The processor is specifically configured to perform color Doppler blood flow imaging based on the first ultrasound echo signal to obtain the color Doppler blood flow image.