CN113425325A - Preoperative liver three-dimensional ultrasonic splicing system and method - Google Patents
Preoperative liver three-dimensional ultrasonic splicing system and method Download PDFInfo
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Abstract
The preoperative liver three-dimensional ultrasonic splicing system and method can obtain three-dimensional data of a patient under the radiation-free condition, provide visual focus three-dimensional information of a doctor, expand the three-dimensional ultrasonic field of vision, improve navigation accuracy and provide a convenient tool for ultrasonic guidance liver tumor ablation operation. The system comprises: the device comprises an acquisition and reconstruction parameter setting module, an electromagnetic tracking equipment connecting module, an ultrasonic imaging module, a two-dimensional ultrasonic slice acquisition module, a three-dimensional ultrasonic reconstruction module and an ultrasonic splicing module.
Description
Technical Field
The invention relates to the technical field of medical image processing, in particular to a preoperative liver three-dimensional ultrasonic splicing system and a preoperative liver three-dimensional ultrasonic splicing method, which are suitable for the field of ablation operation based on ultrasonic image guidance.
Background
Ultrasonic imaging is widely used in clinical interventional procedures due to its low cost, real-time and safety features. At present, the ultrasonic imaging technology can be divided into two-dimensional imaging technology and three-dimensional imaging technology, but the ultrasonic probe for three-dimensional imaging has high cost, lower imaging resolution and poorer universality, so that the two-dimensional ultrasonic probe is more used for acquiring ultrasonic data in clinical application.
In a two-dimensional ultrasound-guided liver ablation operation, a doctor needs to judge the three-dimensional structure of a focus by means of anatomical knowledge and abundant clinical experience so as to achieve the purposes of accurate positioning and complete ablation. For some physicians with poor clinical experience, incomplete ablation may occur due to inaccurate determination of the lesion shape position. The three-dimensional ultrasonic image can contain a three-dimensional shape and a spatial position of a focus, so that a doctor can intuitively acquire useful information, and three-dimensional imaging based on a handheld two-dimensional ultrasonic probe becomes a research hotspot in the field of medical imaging in recent years. In addition, the right lobe of the liver is frequently infected with tumors, and the right lobe of the liver is also shielded by ribs more in ultrasonic imaging. The rib shielding can cause the situation that the three-dimensional ultrasonic imaging range is small or the ultrasonic imaging quality is poor (as shown in the situation that a large black area exists in the three-dimensional ultrasonic), and the like. Therefore, in order to obtain three-dimensional ultrasound with a large imaging range without damaging the imaging quality of the three-dimensional ultrasound, a plurality of intercostal three-dimensional ultrasound needs to be spliced.
When a doctor wants to acquire three-dimensional ultrasound independently, the three-dimensional ultrasound data can be acquired only by acquiring data according to the description, and large-range three-dimensional ultrasound data can be acquired through splicing operation. For the acquisition system with the three-dimensional ultrasonic reconstruction and splicing functions, the following points are not negligible:
1. during the ablation operation treatment process, a doctor not only collects common ultrasound, but also collects an ultrasound contrast image for auxiliary judgment, and the contrast image and the common ultrasound are required to be subjected to three-dimensional reconstruction.
2. In order to obtain the spatial position of the two-dimensional ultrasonic slice, the real-time tracking is required by utilizing an electromagnetic tracking device. However, the tracking range of the electromagnetic tracking equipment is limited, and the tracking state needs to be judged in real time so as to avoid losing the tracking target.
3. Most of ultrasonic examination is fan scanning, and three-dimensional reconstruction meets fan scanning conditions.
Therefore, the preoperative three-dimensional ultrasonic liver splicing system needs to meet the following conditions: (1) reconstructing fan-scan three-dimensional ultrasound; (2) the method has two reconstruction modes of common ultrasound and ultrasound contrast; (3) the three-dimensional ultrasonic splicing function is achieved; (4) and (4) displaying the tracking state of the ultrasonic slice in real time.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a preoperative liver three-dimensional ultrasonic splicing system which can obtain three-dimensional data of a patient under the radiation-free condition, provide visual lesion three-dimensional information of a doctor, expand the three-dimensional ultrasonic visual field, improve the navigation accuracy and provide a convenient tool for the ultrasonic-guided liver tumor ablation operation.
The technical scheme of the invention is as follows: this kind of preoperative liver three-dimensional ultrasonic concatenation system, it includes:
the acquisition and reconstruction parameter setting module is configured to set a two-dimensional ultrasonic sequence storage path, an acquisition ultrasonic mode, a screen capture mode and an ultrasonic image storage time interval;
the electromagnetic tracking equipment connecting module is configured to connect the PC and the electromagnetic tracking equipment, establish a data transmission path and record the spatial position change of an ultrasonic probe in the electromagnetic tracking equipment;
the ultrasonic imaging module is configured to be connected with the PC and the ultrasonic instrument, the PC and the ultrasonic instrument are connected through an acquisition card, an image data transmission channel is established, the PC is ensured to acquire a video signal of the ultrasonic instrument in real time, and an interception mode is determined by a screen interception mode in the acquisition and reconstruction parameter setting module;
a two-dimensional ultrasound slice acquisition module configured to control acquisition of a two-dimensional ultrasound slice, the acquisition ultrasound mode and the ultrasound preservation time interval being acquired from the acquisition and reconstruction parameter setting module;
the module sends a start signal through a system program, then newly builds a folder in a set storage path, and starts to read the ultrasonic slices and the tracking information corresponding to the slices according to a storage time interval and store the ultrasonic slices and the tracking information corresponding to the slices in the newly built folder; stopping storing the slices and the corresponding tracking information after a finishing signal is sent, and finishing single acquisition; repeating the process to obtain a plurality of two-dimensional ultrasonic slice sequences for reconstructing different three-dimensional data;
the three-dimensional ultrasonic reconstruction module is configured to execute three-dimensional ultrasonic reconstruction of two-dimensional ultrasonic slice sequences in all folders under the current selected directory, the reconstruction mode is obtained from the acquisition and reconstruction parameter setting module, and the system program starts to reconstruct the two-dimensional ultrasonic slice sequences in all the folders after sending reconstruction signals;
and the ultrasonic splicing module is configured to perform splicing of the reconstructed three-dimensional ultrasonic waves in all the folders under the currently selected directory, and the system program starts to splice by using the three-dimensional ultrasonic waves in all the folders after sending a splicing signal.
The system integrates electromagnetic tracking, ultrasonic slice acquisition, ultrasonic three-dimensional reconstruction and splicing, reconstructs three-dimensional ultrasonic data of a single small focus or an intercostal region by utilizing a plurality of two-dimensional ultrasonic slices, and splices the three-dimensional ultrasonic data of a plurality of focuses at different visual angles or different parts to finally obtain large-range three-dimensional ultrasonic data with complete focuses and peripheral tissues, so that the system obtains three-dimensional data of a patient under the condition of no radiation, provides intuitive focus three-dimensional information of a doctor, enlarges the three-dimensional ultrasonic visual field, improves the navigation accuracy and provides a convenient tool for ultrasonic-guided liver tumor ablation surgery.
Also provides a preoperative three-dimensional ultrasonic liver splicing method, which comprises the following steps:
(1) connecting equipment lines and setting acquisition and image reconstruction parameters;
(2) connecting the electromagnetic tracking equipment with an ultrasonic instrument;
(3) testing the tracking range of the electromagnetic tracking equipment, simulating the ultrasonic image acquisition process, clicking a start button on a user interface, and observing a tracking state signal lamp at the lower right corner: when the tracking state signal lamp is green, the probe is in a tracking range; when the tracking state signal lamp is red, the probe is indicated to exceed the tracking range, the probe cannot acquire tracking information, and the probe is prevented from moving to the position during acquisition; if the reconstructed target part is not in the tracking range, adjusting the position of the electromagnetic tracking equipment to ensure that the reconstructed target part is in the tracking range; stopping clicking after the test is finished, and stopping the test; deleting the images and the folders saved in the test after the test is finished;
(4) acquiring an ultrasonic image, clicking a start button on a user interface, placing an ultrasonic probe on a reconstruction target part, rotating the ultrasonic probe back and forth to acquire a slice for reconstructing three-dimensional ultrasonic, stopping clicking when the acquired slice covers the target part, and ending acquisition;
(5) three-dimensional ultrasonic reconstruction, setting the path as an acquisition and storage path, acquiring an ultrasonic mode to select a single column if the images in all folders under the path are common ultrasonic, and acquiring an ultrasonic mode to select a double column if the images in all folders under the path are ultrasonic; clicking a reconstruction button in a user interface, sequentially reconstructing the two-dimensional ultrasonic sequence in each folder under the path into three-dimensional ultrasonic, and storing the reconstruction result in a corresponding acquisition slice storage folder;
(6) and (3) three-dimensional ultrasonic splicing, wherein the path is set as a collection and storage path, the two-dimensional ultrasonic slice sequences in all the folders under the path are also reconstructed into three-dimensional ultrasonic, a splicing button on a user interface is clicked, the three-dimensional ultrasonic reconstructed in all the folders is spliced into a large-range three-dimensional ultrasonic at the moment, the splicing is completed, and the splicing result is stored under the collection and storage path.
Drawings
Fig. 1 is a schematic structural diagram of a preoperative three-dimensional ultrasonic liver splicing system according to the present invention.
Fig. 2 is a flow chart of a pre-operative three-dimensional ultrasonic liver stitching method according to the present invention.
Detailed Description
As shown in fig. 1, the preoperative liver three-dimensional ultrasonic splicing system comprises:
the acquisition and reconstruction parameter setting module is configured to set a two-dimensional ultrasonic sequence storage path, an acquisition ultrasonic mode, a screen capture mode and an ultrasonic image storage time interval;
the electromagnetic tracking equipment connecting module is configured to connect the PC and the electromagnetic tracking equipment, establish a data transmission path and record the spatial position change of an ultrasonic probe in the electromagnetic tracking equipment;
the ultrasonic imaging module is configured to be connected with the PC and the ultrasonic instrument, the PC and the ultrasonic instrument are connected through an acquisition card, an image data transmission channel is established, the PC is ensured to acquire a video signal of the ultrasonic instrument in real time, and an interception mode is determined by a screen interception mode in the acquisition and reconstruction parameter setting module;
a two-dimensional ultrasound slice acquisition module configured to control acquisition of a two-dimensional ultrasound slice, the acquisition ultrasound mode and the ultrasound preservation time interval being acquired from the acquisition and reconstruction parameter setting module;
the module sends a start signal through a system program, then newly builds a folder in a set storage path, and starts to read the ultrasonic slices and the tracking information corresponding to the slices according to a storage time interval and store the ultrasonic slices and the tracking information corresponding to the slices in the newly built folder; stopping storing the slices and the corresponding tracking information after a finishing signal is sent, and finishing single acquisition; repeating the above process to obtain multiple two-dimensional ultrasound slice sequences for reconstructing different three-dimensional data
The three-dimensional ultrasonic reconstruction module is configured to execute three-dimensional ultrasonic reconstruction of two-dimensional ultrasonic slice sequences in all folders under the current selected directory, the reconstruction mode is obtained from the acquisition and reconstruction parameter setting module, and the system program starts to reconstruct the two-dimensional ultrasonic slice sequences in all the folders after sending reconstruction signals;
and the ultrasonic splicing module is configured to perform splicing of the reconstructed three-dimensional ultrasonic waves in all the folders under the currently selected directory, and the system program starts to splice by using the three-dimensional ultrasonic waves in all the folders after sending a splicing signal.
The system integrates electromagnetic tracking, ultrasonic slice acquisition, ultrasonic three-dimensional reconstruction and splicing, reconstructs three-dimensional ultrasonic data of a single small focus or an intercostal region by utilizing a plurality of two-dimensional ultrasonic slices, and splices the three-dimensional ultrasonic data of a plurality of focuses at different visual angles or different parts to finally obtain large-range three-dimensional ultrasonic data with complete focuses and peripheral tissues, so that the system obtains three-dimensional data of a patient under the condition of no radiation, provides intuitive focus three-dimensional information of a doctor, enlarges the three-dimensional ultrasonic visual field, improves the navigation accuracy and provides a convenient tool for ultrasonic-guided liver tumor ablation surgery.
Preferably, the electromagnetic tracking device connection module exists in the form of an independent thread, the module sends a connection signal through the PC to connect or disconnect the electromagnetic tracking device and the PC, and places a signal indicating whether the device connection is successful in the user interface, if the electromagnetic tracking device connection is successful, the connection status signal lamp is green, otherwise, the signal lamp is red.
Preferably, the two-dimensional ultrasonic slice acquisition module monitors the tracking state of the probe in real time in the acquisition process, if the probe exceeds the tracking range, a signal lamp of the tracking state is red, otherwise, the signal lamp is green; and simultaneously, displaying the acquisition time length and the total number of the acquired slices on the user interface.
Preferably, the three-dimensional ultrasonic reconstruction module sends a reconstruction completion signal after all data are reconstructed, and displays the reconstruction completion signal on a user interface.
Preferably, the ultrasonic splicing module sends a splicing completion signal after splicing is completed, and displays the signal on a user interface; and storing the splicing result in the current selection directory.
The system integrates electromagnetic tracking, ultrasonic slice acquisition, ultrasonic three-dimensional reconstruction and splicing, the integration is also the main innovation point of the system, each function is controlled by the PC and interacts information with the PC, the operation is simple and flexible, and the system has the following advantages that the system performance is improved:
1. the preoperative liver three-dimensional ultrasonic splicing system belongs to an encapsulation program and has a friendly user interaction interface, so that the preoperative liver three-dimensional ultrasonic splicing system can be used without any compiling platform and tool kit.
2. The system has two acquisition and reconstruction modes of common ultrasound and ultrasound contrast, and multiple modes coexist, so that the system can be flexibly suitable for various ultrasound acquisition scenes.
3. After the collection of the ultrasonic slices is finished, an ultrasonic reconstruction result and an ultrasonic splicing result are obtained immediately, and the system effectively improves the efficiency of the preoperative three-dimensional ultrasonic splicing and analysis of the liver.
4. The spliced three-dimensional ultrasound can provide the three-dimensional shape of the liver focus and the relative relation between the liver focus and surrounding tissues, and visualization can be carried out subsequently, so that doctors can obtain effective information intuitively.
As shown in fig. 2, a preoperative three-dimensional ultrasonic liver splicing method is also provided, which comprises the following steps:
(1) connecting equipment lines and setting acquisition and image reconstruction parameters;
(2) connecting the electromagnetic tracking equipment with an ultrasonic instrument;
(3) testing the tracking range of the electromagnetic tracking equipment, simulating the ultrasonic image acquisition process, clicking a start button on a user interface, and observing a tracking state signal lamp at the lower right corner: when the tracking state signal lamp is green, the probe is in a tracking range; when the tracking state signal lamp is red, the probe is indicated to exceed the tracking range, the probe cannot acquire tracking information, and the probe is prevented from moving to the position during acquisition; if the reconstructed target part is not in the tracking range, adjusting the position of the electromagnetic tracking equipment to ensure that the reconstructed target part is in the tracking range; stopping clicking after the test is finished, and stopping the test; deleting the images and the folders saved in the test after the test is finished;
(4) acquiring an ultrasonic image, clicking a start button on a user interface, placing an ultrasonic probe on a reconstruction target part, rotating the ultrasonic probe back and forth to acquire a slice for reconstructing three-dimensional ultrasonic, stopping clicking when the acquired slice covers the target part, and ending acquisition;
(5) three-dimensional ultrasonic reconstruction, setting the path as an acquisition and storage path, acquiring an ultrasonic mode to select a single column if the images in all folders under the path are common ultrasonic, and acquiring an ultrasonic mode to select a double column if the images in all folders under the path are ultrasonic; clicking a reconstruction button in a user interface, and sequentially reconstructing the two-dimensional ultrasonic sequence in each folder under the path into three-dimensional ultrasonic;
(6) and (3) three-dimensional ultrasonic splicing, wherein the path is set as a collection and storage path, the two-dimensional ultrasonic slice sequences in all the folders under the path are also reconstructed into three-dimensional ultrasonic, a splicing button on a user interface is clicked, the three-dimensional ultrasonic reconstructed in all the folders is spliced into a large-range three-dimensional ultrasonic at the moment, the splicing is completed, and the splicing result is stored under the collection and storage path.
Preferably, the step (1) comprises the following substeps:
(1.1) connecting the electromagnetic acquisition system with a PC (personal computer) through a data line, connecting the ultrasonic instrument with the PC through an acquisition card, and powering on the equipment;
(1.2) setting a storage path, wherein a plurality of folders for storing two-dimensional ultrasonic sequences exist in the storage path, all two-dimensional ultrasonic slices under each folder are reconstructed into a three-dimensional ultrasonic, and the three-dimensional ultrasonic in all the folders in the path are spliced into a large-range three-dimensional ultrasonic data; if the splicing target is changed, reselecting a storage path and then starting to acquire the ultrasound;
(1.3) setting an acquisition ultrasound mode, wherein two selection modes are provided, namely a single column and a double column, if the acquisition ultrasound is common ultrasound, the single column is selected, and if the acquisition ultrasound is ultrasound contrast, the double column is selected;
(1.4) selecting screen intercepting modes, wherein the selectable modes are two, namely a best mode and a full screen;
(1.5) selecting an ultrasound preservation time interval.
Preferably, in the step (2), under the condition that the electromagnetic tracking device and the ultrasonic instrument are completely connected through a circuit and powered on, clicking a user interface connection button, and when a connection state signal lamp at the lower right corner is green and the electromagnetic tracking device sends a connection success prompt tone, successfully connecting the electromagnetic tracking device and the PC; meanwhile, when the current ultrasonic image is displayed on the user interface, the ultrasonic instrument is successfully connected with the PC, and the video signal of the ultrasonic instrument is acquired in real time.
Preferably, in the step (4), the patient keeps a breath holding state during the process of acquiring the two-dimensional ultrasound slice sequence for reconstruction once, and the ultrasound probe keeps constant speed and rotates back and forth to perform sector scanning or flat scanning; and if the images need to be spliced, placing the images to be spliced under the same storage path.
Preferably, in the step (5), when a signal prompt indicating that the reconstruction is finished appears at the lower left corner of the user interface, the three-dimensional ultrasonic reconstruction of each folder is finished; in the step (6), when a signal prompt of splicing completion appears at the lower left corner, splicing is completed, and a splicing result is stored in the acquisition and storage path.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications, equivalent variations and modifications made to the above embodiment according to the technical spirit of the present invention still belong to the protection scope of the technical solution of the present invention.
Claims (10)
1. The three-dimensional ultrasonic splicing system of liver before art, its characterized in that: it includes:
the acquisition and reconstruction parameter setting module is configured to set a two-dimensional ultrasonic sequence storage path, an acquisition ultrasonic mode, a screen capture mode and an ultrasonic image storage time interval;
the electromagnetic tracking equipment connecting module is configured to connect the PC and the electromagnetic tracking equipment, establish a data transmission path and record the spatial position change of an ultrasonic probe in the electromagnetic tracking equipment;
the ultrasonic imaging module is configured to be connected with the PC and the ultrasonic instrument, the PC and the ultrasonic instrument are connected through an acquisition card, an image data transmission channel is established, the PC is ensured to acquire a video signal of the ultrasonic instrument in real time, and an interception mode is determined by a screen interception mode in the acquisition and reconstruction parameter setting module; a two-dimensional ultrasound slice acquisition module configured to control acquisition of a two-dimensional ultrasound slice, the acquisition ultrasound mode and the ultrasound preservation time interval being acquired from the acquisition and reconstruction parameter setting module; the module sends a start signal through a system program, then newly builds a folder in a set storage path, and starts to read the ultrasonic slices and the tracking information corresponding to the slices according to a storage time interval and store the ultrasonic slices and the tracking information corresponding to the slices in the newly built folder; stopping storing the slices and the corresponding tracking information after a finishing signal is sent, and finishing single acquisition; repeating the process to obtain a plurality of two-dimensional ultrasonic slice sequences for reconstructing different three-dimensional data;
the three-dimensional ultrasonic reconstruction module is configured to execute three-dimensional ultrasonic reconstruction of two-dimensional ultrasonic slice sequences in all folders under the current selected directory, the reconstruction mode is obtained from the acquisition and reconstruction parameter setting module, and the system program starts to reconstruct the two-dimensional ultrasonic slice sequences in all the folders after sending reconstruction signals;
and the ultrasonic splicing module is configured to perform splicing of the reconstructed three-dimensional ultrasonic waves in all the folders under the currently selected directory, and the system program starts to splice by using the three-dimensional ultrasonic waves in all the folders after sending a splicing signal.
2. The preoperative liver three-dimensional ultrasonic splicing system of claim 1, wherein: the electromagnetic tracking equipment connection module exists in the form of an independent thread, the module sends a connection signal through the PC to connect or disconnect the electromagnetic tracking equipment and the PC, and places a signal indicating whether the equipment is successfully connected in a user interface, if the electromagnetic tracking equipment is successfully connected, a connection state signal lamp is green, otherwise, the signal lamp is red.
3. The preoperative liver three-dimensional ultrasonic splicing system of claim 2, wherein: the two-dimensional ultrasonic slice acquisition module monitors the tracking state of the probe in real time in the acquisition process, if the probe exceeds the tracking range, a signal lamp of the tracking state is red, otherwise, the signal lamp is green; and simultaneously, displaying the acquisition time length and the total number of the acquired slices on the user interface.
4. The preoperative liver three-dimensional ultrasonic splicing system of claim 1, wherein: and the three-dimensional ultrasonic reconstruction module sends a reconstruction completion signal after all data are reconstructed, the reconstruction completion signal is displayed on a user interface, and each reconstruction result is stored in a corresponding acquisition slice storage folder.
5. The preoperative liver three-dimensional ultrasonic splicing system of claim 4, wherein: the ultrasonic splicing module sends a splicing completion signal after splicing is completed, and the signal is displayed on a user interface; and storing the splicing result in the current selection directory.
6. The preoperative three-dimensional ultrasonic liver splicing method is characterized by comprising the following steps: which comprises the following steps:
(1) connecting equipment lines and setting acquisition and image reconstruction parameters;
(2) connecting the electromagnetic tracking equipment with an ultrasonic instrument;
(3) testing the tracking range of the electromagnetic tracking equipment, simulating the ultrasonic image acquisition process, clicking a start button on a user interface, and observing a tracking state signal lamp at the lower right corner: when the tracking state signal lamp is green, the probe is in a tracking range; when the tracking state signal lamp is red, the probe is indicated to exceed the tracking range, the probe cannot acquire tracking information, and the probe is prevented from moving to the position during acquisition; if the reconstructed target part is not in the tracking range, adjusting the position of the electromagnetic tracking equipment to ensure that the reconstructed target part is in the tracking range; stopping clicking after the test is finished, and stopping the test; deleting the images and the folders saved in the test after the test is finished;
(4) acquiring an ultrasonic image, clicking a start button on a user interface, placing an ultrasonic probe on a reconstruction target part, rotating the ultrasonic probe back and forth to acquire a slice for reconstructing three-dimensional ultrasonic, stopping clicking when the acquired slice covers the target part, and ending acquisition;
(5) three-dimensional ultrasonic reconstruction, setting the path as an acquisition and storage path, acquiring an ultrasonic mode to select a single column if the images in all folders under the path are common ultrasonic, and acquiring an ultrasonic mode to select a double column if the images in all folders under the path are ultrasonic; clicking a reconstruction button in a user interface, sequentially reconstructing the two-dimensional ultrasonic sequence in each folder under the path into three-dimensional ultrasonic, and storing the reconstruction result in a corresponding acquisition slice storage folder;
(6) and (3) three-dimensional ultrasonic splicing, wherein the path is set as a collection and storage path, the two-dimensional ultrasonic slice sequences in all the folders under the path are also reconstructed into three-dimensional ultrasonic, a splicing button on a user interface is clicked, the three-dimensional ultrasonic reconstructed in all the folders is spliced into a large-range three-dimensional ultrasonic at the moment, the splicing is completed, and the splicing result is stored under the collection and storage path.
7. The preoperative three-dimensional ultrasonic liver splicing method according to claim 6, wherein: the step (1) comprises the following sub-steps:
(1.1) connecting the electromagnetic acquisition system with a PC (personal computer) through a data line, connecting the ultrasonic instrument with the PC through an acquisition card, and powering on the equipment;
(1.2) setting a storage path, wherein a plurality of folders for storing two-dimensional ultrasonic sequences exist in the storage path, all two-dimensional ultrasonic slices under each folder are reconstructed into a three-dimensional ultrasonic, and the three-dimensional ultrasonic in all the folders in the path are spliced into a large-range three-dimensional ultrasonic data; if the splicing target is changed, reselecting a storage path and then starting to acquire the ultrasound;
(1.3) setting an acquisition ultrasound mode, wherein two selection modes are provided, namely a single column and a double column, if the acquisition ultrasound is common ultrasound, the single column is selected, and if the acquisition ultrasound is ultrasound contrast, the double column is selected;
(1.4) selecting screen intercepting modes, wherein the selectable modes are two, namely a best mode and a full screen;
(1.5) selecting an ultrasound preservation time interval.
8. The preoperative three-dimensional ultrasonic liver splicing method according to claim 7, wherein: in the step (2), under the condition that the electromagnetic tracking equipment and the ultrasonic instrument are connected in a line and powered on, clicking a user interface connection button, and when a signal lamp in a lower right corner connection state is green and the electromagnetic tracking equipment sends a connection success prompt tone, successfully connecting the electromagnetic tracking equipment and the PC; meanwhile, when the current ultrasonic image is displayed on the user interface, the ultrasonic instrument is successfully connected with the PC, and the video signal of the ultrasonic instrument is acquired in real time.
9. The preoperative three-dimensional ultrasonic liver splicing method according to claim 8, wherein: in the step (4), the patient keeps a breath holding state in the process of acquiring the two-dimensional ultrasonic slice sequence for reconstruction once, and the ultrasonic probe keeps constant speed and rotates back and forth to perform sector scanning or flat scanning; and if the images need to be spliced, placing the images to be spliced under the same storage path.
10. The preoperative three-dimensional ultrasonic liver splicing method according to claim 9, wherein: in the step (5), when a signal prompt of reconstruction completion appears at the lower left corner of the user interface, the three-dimensional ultrasonic reconstruction of each folder is completed, and each reconstruction result is stored in the corresponding acquisition slice storage folder; in the step (6), when a signal prompt of splicing completion appears at the lower left corner, splicing is completed, and a splicing result is stored in the acquisition and storage path.
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| CN202110704909.5A CN113425325A (en) | 2021-06-24 | 2021-06-24 | Preoperative liver three-dimensional ultrasonic splicing system and method |
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