CN112998759A - Tissue elasticity detection method, device and system - Google Patents
Tissue elasticity detection method, device and system Download PDFInfo
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- CN112998759A CN112998759A CN202110368522.7A CN202110368522A CN112998759A CN 112998759 A CN112998759 A CN 112998759A CN 202110368522 A CN202110368522 A CN 202110368522A CN 112998759 A CN112998759 A CN 112998759A
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Abstract
The embodiment of the invention provides a method, a device and a system for detecting tissue elasticity, wherein the method comprises the following steps: acquiring a contact parameter between a detection probe and an object to be detected, wherein the contact parameter is used for representing the contact degree between the detection probe and the object to be detected; if the contact parameter meets a first threshold condition, controlling the detection probe to transmit and receive ultrasonic signals to the object to be detected so as to determine the target detection position of the object to be detected; and if the contact parameter meets a second threshold condition, controlling the detection probe to carry out shear wave excitation on the target detection position of the object to be detected so as to measure the elasticity of the target detection position of the object to be detected. The embodiment of the invention can enable an operator to accurately judge the time of ultrasonic signal emission and shear wave excitation, thereby improving the stability and accuracy and the qualification of the measurement result.
Description
Technical Field
The embodiment of the invention relates to the technical field of measurement, in particular to a method, a device and a system for detecting tissue elasticity.
Background
Ultrasonic imaging and elastography have wide application in the fields of medical care and the like, and generally, a detection probe is utilized to transmit ultrasonic signals (such as A ultrasonic signals, M ultrasonic signals or B ultrasonic signals) to conduct ultrasonic image guidance, whether the current detection position is the position of a detection object and whether interference exists is preliminarily judged, after the position of the detection object is obtained, shear wave excitation (such as mechanical waves or shear wave signals) is conducted, elasticity measurement is conducted on the detection object, and the two detection modes are combined, so that the position of the detection object can be rapidly obtained in real time, and the elasticity of the detection object can be obtained through the elasticity measurement.
In the prior art, when performing elasticity measurements, it is generally determined by an operator by personal experience when transmitting ultrasonic signals and when performing shear wave excitation.
However, in the method of judging the ultrasonic signal emission and the shear wave excitation according to the subjective experience of the operator, the ultrasonic imaging and the elasticity measurement may cause the problems that the imaging result or the measurement result is unstable and not accurate enough, and the operator needs to operate repeatedly, thereby reducing the operation efficiency.
Disclosure of Invention
The embodiment of the invention provides a tissue elasticity detection method, a device and a system, which aim to solve the problems of unstable and inaccurate imaging results or measurement results caused by ultrasonic imaging and elasticity measurement in the prior art due to the fact that the subjective experience of an operator judges the mode of ultrasonic signal emission and shear wave excitation.
A first aspect of an embodiment of the present invention provides a tissue elasticity detection method, including:
acquiring a contact parameter between a detection probe and an object to be detected, wherein the contact parameter is used for representing the contact degree between the detection probe and the object to be detected;
if the contact parameter meets a first threshold condition, controlling the detection probe to transmit and receive ultrasonic signals to the object to be detected so as to determine the target detection position of the object to be detected;
and if the contact parameter meets a second threshold condition, controlling the detection probe to carry out shear wave excitation on the target detection position of the object to be detected so as to measure the elastic information at the target detection position of the object to be detected.
Optionally, the contact parameter includes a pressure value applied to the object to be detected by the detection probe;
if the contact parameter meets a first threshold condition, controlling the detection probe to transmit and receive ultrasonic signals to the object to be detected, including:
and if the pressure value is greater than a first preset pressure threshold value, controlling the detection probe to transmit and receive ultrasonic signals to the object to be detected.
Optionally, if the contact parameter meets a second threshold condition, controlling the detection probe to perform shear wave excitation on the target detection position of the object to be detected includes:
if the pressure value is larger than a second preset pressure threshold value, controlling the detection probe to carry out shear wave excitation on the target detection position of the object to be detected; wherein the first preset pressure threshold is smaller than the second preset pressure threshold.
Optionally, the contact parameter includes a displacement value of the detection probe relative to the object to be detected;
if the contact parameter meets a first threshold condition, controlling the detection probe to transmit and receive ultrasonic signals to the object to be detected, including:
and if the displacement value is larger than a first preset displacement threshold value, controlling the detection probe to transmit and receive ultrasonic signals to the object to be detected.
Optionally, if the contact parameter meets a second threshold condition, controlling the detection probe to perform shear wave excitation on the target detection position of the object to be detected includes:
if the displacement value is larger than a second preset displacement threshold value, controlling the detection probe to carry out shear wave excitation on the target detection position of the object to be detected; wherein the first preset displacement threshold is smaller than the second preset displacement threshold.
Optionally, the method further comprises: determining the refreshing speed of the ultrasonic signal according to refreshing parameters set by a user; and controlling a detection probe to transmit and receive ultrasonic signals to the object to be detected according to the refreshing speed.
Optionally, the determining the target detection position of the object to be detected includes:
generating an ultrasonic image of the object to be detected according to the received ultrasonic echo signal, wherein the ultrasonic image is used for indicating a user to judge the current detection position;
and determining the target detection position of the object to be detected according to the judgment result.
Further, the method further comprises: if the contact parameter meets a second threshold condition and a trigger signal is detected, controlling the detection probe to carry out shear wave excitation on the target detection position of the object to be detected, wherein the trigger signal is generated when a user touches a switch on the detection probe or steps on a foot switch connected with the detection probe
A second aspect of an embodiment of the present invention provides a tissue elasticity detecting apparatus, including:
the device comprises an acquisition module, a detection module and a detection module, wherein the acquisition module is used for acquiring contact parameters between a detection probe and an object to be detected, and the contact parameters are used for representing the contact degree between the detection probe and the object to be detected;
the control module is used for controlling the detection probe to transmit and receive ultrasonic signals to the object to be detected if the contact parameter meets a first threshold condition so as to determine the target detection position of the object to be detected;
the control module is further configured to control the detection probe to perform shear wave excitation on the target detection position of the object to be detected if the contact parameter meets a second threshold condition, so as to measure elastic information at the target detection position of the object to be detected.
A third aspect of an embodiment of the present invention provides a tissue elasticity detection system, including: a detection probe and a control device; wherein the control equipment is connected with the detection probe;
the detection probe is provided with a parameter sensor and is used for acquiring contact parameters between the detection probe and an object to be detected and sending the contact parameters to a control device, and the contact parameters are used for expressing the contact degree between the detection probe and the object to be detected;
the control device is configured to: if the contact parameter meets a first threshold condition, controlling the detection probe to transmit and receive ultrasonic signals to the object to be detected so as to determine the target detection position of the object to be detected; and if the contact parameter meets a second threshold condition, controlling the detection probe to carry out shear wave excitation on the target detection position of the object to be detected so as to measure the elastic information at the target detection position of the object to be detected.
A fourth aspect of the embodiments of the present invention provides a computer-readable storage medium, where computer-executable instructions are stored, and when a processor executes the computer-executable instructions, the method for detecting tissue elasticity provided by the first aspect of the embodiments of the present invention is implemented.
The embodiment of the invention provides a tissue elasticity detection method, a device, a system and a storage medium, wherein a contact parameter for measuring the contact degree between a detection probe and a to-be-detected object is obtained, then the contact parameter is compared with a first threshold condition, when the condition is met, an ultrasonic signal is triggered and transmitted to judge the detection position, after the target detection position of the to-be-detected object is determined, the contact parameter is compared with a second threshold condition, when the second threshold condition is met, shear wave excitation is carried out to further carry out elasticity measurement, and the process avoids the situation that an operator judges and transmits the ultrasonic signal according to subjective experience, so that the energy-saving effect is realized. Meanwhile, the problem that an elastography result or measurement is unstable due to the fact that an operator judges the moment of transmitting the excitation shear wave according to subjective experience is solved, energy is saved, the stability and accuracy of the measurement result are improved, and the operation efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a diagram illustrating an application scenario of a tissue elasticity detection method according to an exemplary embodiment of the present invention;
FIG. 2 is a schematic flow chart of a method for tissue elasticity detection according to an exemplary embodiment of the present invention;
FIG. 3 is a schematic flow chart of a method for tissue elasticity detection according to another exemplary embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a tissue elasticity detection apparatus according to an exemplary embodiment of the present invention;
FIG. 5 is a schematic diagram illustrating the structure of a tissue elasticity detection system according to an exemplary embodiment of the present invention;
fig. 6 is a schematic structural diagram of a measuring apparatus according to an exemplary embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
At present, ultrasonic imaging and elastography are widely applied in the fields of medical care and the like, and generally, a detection probe is utilized to transmit ultrasonic signals (such as a ultrasonic signal, an M ultrasonic signal or a B ultrasonic signal) to conduct ultrasonic image guidance, whether the current detection position is the position of a detection object and whether interference exists is preliminarily judged, after the position of the detection object is obtained, shear wave excitation (such as a mechanical wave vibration mode or a mode of generating acoustic radiation force) is conducted, and the elasticity measurement is conducted on the detection object. In the prior art, when performing elasticity measurement again, the operator usually determines by personal experience when to transmit the ultrasonic signal and when to perform shear wave excitation. However, the method of transmitting ultrasonic signals and exciting shear waves according to the subjective experience of the operator, the ultrasonic imaging and elasticity measurement may cause the problems of unstable and inaccurate imaging result or measurement result, and the operator needs to operate repeatedly, thereby reducing the operation efficiency.
Aiming at the defect, the technical scheme of the invention mainly comprises the following steps: the method comprises the steps of obtaining a contact parameter used for measuring the contact degree between a detection probe and an object to be detected, comparing the contact parameter with a first threshold condition, triggering and transmitting an ultrasonic signal to judge a detection position when the condition is met, comparing the contact parameter with a second threshold condition after the target detection position of the object to be detected is determined, and performing shear wave excitation and further performing elastic measurement when the second threshold condition is met.
Fig. 1 is a diagram illustrating an application scenario of a tissue elasticity measurement method according to an exemplary embodiment of the present invention.
As shown in fig. 1, the main architecture of the application scenario provided by this embodiment includes: a detection probe 101, a control device 102 and a medium to be detected 103; the detection probe 101 applies appropriate pressure to the medium to be detected, and the control device 102 controls the detection probe to transmit ultrasonic signals and excitation shear waves to the medium to be detected 103 and receive ultrasonic signals returned by the medium to be detected.
The control device may be, but is not limited to, a computer, a microprocessor, a central processing unit, or the like.
Fig. 2 is a schematic flow chart of a tissue elasticity detection method according to an exemplary embodiment of the present invention, and an execution subject of the method provided by the present embodiment may be the control device in the embodiment shown in fig. 1.
As shown in fig. 2, the method provided by the present embodiment may include the following steps.
S201, obtaining a contact parameter between a detection probe and an object to be detected, wherein the contact parameter is used for representing the contact degree between the detection probe and the object to be detected.
Specifically, a relevant sensor may be installed on the detection probe in advance, when an operator needs to detect an object to be detected, the detection probe contacts the object to be detected and gradually applies pressure, and the sensor acquires contact parameters in real time, wherein the contact parameters can measure a contact state between the detection probe and the object to be detected.
For example, a displacement sensor can be mounted on the detection probe, a displacement value of the detection probe relative to the object to be detected is acquired in real time in the measurement process of an operator, the contact state between the detection probe and the object to be detected is measured by using the displacement value, and the distance between the surface of the probe and the original position of the surface of the tissue to be detected caused by pressing the probe by the operator is represented. The pressure sensor may detect a pressure value, and may detect a contact state parameter such as stress or strain.
S202, if the contact parameter meets a first threshold condition, controlling the detection probe to transmit an ultrasonic signal to the object to be detected so as to determine the target detection position of the object to be detected.
Wherein the first threshold condition is set according to actual requirements.
Specifically, as the pressure applied to the object to be detected by the operator is increased, the value of the contact parameter is also increased, and when the contact parameter reaches a preset first threshold condition, it indicates that the time for transmitting the ultrasonic signal is reached, and the ultrasonic image formed by transmitting the ultrasonic signal is clearer than the ultrasonic image formed by transmitting the ultrasonic signal at other moments, so that the operator can be assisted in accurately determining the target detection position of the object to be detected.
S203, if the contact parameter meets a second threshold condition, controlling the detection probe to perform shear wave excitation on the target detection position of the object to be detected so as to measure the elastic information at the target detection position of the object to be detected.
The second threshold condition may be set according to actual requirements.
Specifically, after the target detection position of the object to be detected is obtained, the detection probe continues to apply pressure to the target detection position of the object to be detected, so that the value of the contact parameter continues to increase, when the contact parameter meets the second threshold condition, it is indicated that the condition of elastic measurement is met, and the elastic value obtained by performing shear wave excitation measurement at this time is more accurate than the elastic value obtained by performing shear wave excitation measurement at other times.
It should be noted that the process of performing shear wave excitation to measure the elasticity of the object to be measured at the target detection position includes: and transmitting the low-frequency vibration signal and the ultrasonic signal to a target detection position, collecting the ultrasonic signal returned from the object to be detected, processing the returned ultrasonic signal, and analyzing and calculating to obtain the elastic information of the target detection position of the object to be detected. The low-frequency vibration signal can be but is not limited to a signal generated by shear wave excitation such as mechanical vibration excitation or acoustic radiation force excitation.
In the embodiment, the contact parameter used for measuring the contact degree between the detection probe and the object to be detected is obtained, then the contact parameter is compared with the first threshold condition, the ultrasonic signal is triggered and transmitted to judge the detection position when the condition is met, the contact parameter is compared with the second threshold condition after the target detection position of the object to be detected is determined, shear wave excitation is carried out when the second threshold condition is met, then elastic measurement is carried out, the process avoids the situation that an operator judges and transmits the ultrasonic signal according to subjective experience, and the energy-saving effect is achieved. Meanwhile, the problem that an elastography result or measurement is unstable due to the fact that an operator judges the moment of transmitting the excitation shear wave according to subjective experience is solved, energy is saved, the stability and accuracy of the measurement result are improved, and the operation efficiency is improved.
Fig. 3 is a schematic flow chart of a tissue elasticity detection method according to another exemplary embodiment of the present invention, and this embodiment further describes the tissue elasticity detection method in detail based on the embodiment shown in fig. 2.
As shown in fig. 3, the method provided by the present embodiment may include the following steps.
S301, acquiring a pressure value and/or a displacement value between a detection probe and an object to be detected, wherein the pressure value and/or the displacement value are/is used for representing the contact degree between the detection probe and the object to be detected;
specifically, a pressure sensor and/or a displacement sensor may be mounted on the detection probe in advance, when an operator needs to detect an object to be detected, the detection probe contacts the object to be detected and gradually applies pressure, the sensor collects a pressure value and/or a relative displacement value between the detection probe and the object to be detected in real time, and the pressure value and/or the displacement value may measure a contact state between the detection probe and the object to be detected.
S302, if the pressure value is greater than a first preset pressure threshold value and/or the displacement value is greater than a first preset displacement threshold value, controlling the detection probe to transmit an ultrasonic signal to the object to be detected;
s303, adjusting the refreshing speed of the ultrasonic signal according to the refreshing parameter set by the user;
s304, receiving an ultrasonic echo signal of the object to be detected;
s305, generating an ultrasonic image of the object to be detected according to the ultrasonic echo signal, wherein the ultrasonic image is used for indicating an operator to judge the current detection position;
s306, determining the target detection position of the object to be detected according to the judgment result;
in steps S302-S306, the first preset pressure threshold and the first preset displacement threshold may be set and adjusted according to actual requirements, for example, an accurate pressure threshold and/or displacement threshold that may be used as a trigger condition for transmitting an ultrasonic signal may be determined according to a large amount of historical detection data.
Specifically, as the pressure applied to the object to be detected by the detection probe is increased, the pressure value and/or the displacement value are also increased, when the pressure value is greater than a first preset pressure threshold value and/or the displacement value is greater than a first preset displacement threshold value, it is indicated that the time for transmitting the ultrasonic signal is reached, the ultrasonic signal is transmitted to form an ultrasonic image, and an operator is assisted in image guidance to accurately determine the target detection position of the object to be detected.
In one embodiment, the transmitted ultrasonic signal may be an a ultrasonic signal, an M ultrasonic signal, or a B ultrasonic signal, wherein the refresh rate of the M ultrasonic signal may be adjusted and controlled in real time by setting parameters, for example, the refresh rate of the M ultrasonic signal may be tens of frames per second or hundreds of frames per second according to application requirements.
It is understood that, in implementation, an operator may determine the time for transmitting the ultrasonic signal according to only the pressure threshold condition, may determine the time for transmitting the ultrasonic signal according to only the displacement threshold condition, and may also determine the time for transmitting the ultrasonic signal simultaneously by using the pressure threshold condition and the displacement threshold condition.
S307, if the pressure value is greater than a second preset pressure threshold value and/or the displacement value is greater than a second preset displacement threshold value, controlling the detection probe to perform shear wave excitation on the target detection position of the object to be detected to obtain an elasticity measurement result;
the second preset pressure threshold and the second preset displacement threshold can be set and adjusted according to actual requirements, for example, an accurate pressure threshold and/or displacement threshold which can be used as a shear wave excitation triggering condition can be determined according to a large amount of historical detection data;
specifically, after the probe triggers an ultrasonic emission signal, the target detection position of the object to be detected is determined, and the position is determined to have no interference of other objects, the detection probe continues to apply pressure to the target detection position of the object to be detected, if the pressure value acquired by the pressure sensor is greater than a second preset pressure threshold value and/or the displacement value acquired by the displacement sensor is greater than a second preset displacement threshold value, it is determined that the elastic measurement condition is met, and at this time, the elastic value obtained by performing shear wave excitation measurement is more accurate than the elastic value obtained by performing shear wave excitation measurement at other times.
In a specific implementation, an operator may determine the time for performing shear wave excitation only based on the pressure threshold condition, may determine the time for performing shear wave excitation only based on the displacement threshold condition, or may determine the time for performing shear wave excitation simultaneously based on the pressure threshold condition and the displacement threshold condition. It is understood that the triggering condition for determining the excitation of shear waves is consistent with the triggering condition for determining the emission of the ultrasonic signal, for example, if the operator determines the emission of the ultrasonic signal only according to the first preset pressure threshold, the operator also needs to determine the excitation of shear waves according to the second preset pressure threshold; if the operator determines to transmit the ultrasonic signal according to the first preset pressure threshold and the first preset displacement threshold at the same time, the shear wave excitation is also determined according to the second preset pressure threshold and the second preset displacement threshold at the same time.
It should be noted that the first preset pressure threshold is smaller than the second preset pressure threshold. And when the pressure value between the detection probe and the object to be detected reaches a first preset pressure threshold value, transmitting and receiving the ultrasonic signal. And when the pressure value reaches a second preset pressure threshold value, carrying out shear wave excitation to measure the elasticity of the target detection position.
For example, assuming that the first preset pressure threshold is 5N and the second preset pressure threshold is 20N, when the pressure value between the detection probe and the object to be detected reaches 5N but does not exceed 20N, the detection probe is automatically triggered to transmit and receive the ultrasonic signal. When the pressure value between the detection probe and the object to be detected reaches 20N, the detection probe is triggered to vibrate and emit shear waves, and meanwhile, the detection probe still has the function of emitting and receiving ultrasonic signals.
It should be noted that when the pressure value between the detection probe and the object to be measured reaches a first upper limit value (for example, 60N), the emission of the shear wave is stopped, and when the pressure value reaches a second upper limit value (for example, 100N), the emission of the ultrasonic signal is stopped, where the first upper limit value is smaller than the second upper limit value.
Similarly, if the displacement is taken as the judgment condition, the first preset displacement threshold is smaller than the second preset displacement threshold.
In some embodiments, when the second threshold condition is met to trigger the shear wave excitation, the operator may trigger the vibration of the detection probe by pressing a foot switch connected to the detection probe or touching a membrane switch on the detection probe to perform the shear wave excitation for the elasticity measurement. If only the operator is detected to step on the foot switch or the membrane switch on the detection probe is manually opened, but the second threshold condition is not met, the detection probe does not emit shear waves.
In the embodiment, the problem of unstable imaging result or measurement caused by judging the time of ultrasonic signal emission and shear wave excitation by an operator according to subjective experience is avoided, the stability and accuracy of the measurement result are improved, and the operation efficiency is improved; furthermore, by adjusting the refreshing frequency of the M ultrasonic signal, resources are saved, unnecessary waste is reduced, and the service life of the detection probe is prolonged.
Fig. 4 is a schematic structural diagram of a tissue elasticity detection apparatus according to an exemplary embodiment of the present invention.
As shown in fig. 4, the apparatus provided in this embodiment includes: an acquisition module 41 and a control module 42; the acquiring module 41 is configured to acquire a contact parameter between a detection probe and an object to be detected, where the contact parameter is used to indicate a degree of contact between the detection probe and the object to be detected; the control module 42 is configured to control the detection probe to transmit and receive an ultrasonic signal to the object to be detected if the contact parameter meets a first threshold condition, so as to determine a target detection position of the object to be detected; the control module 42 is further configured to control the detection probe to perform shear wave excitation on the target detection position of the object to be detected if the contact parameter meets a second threshold condition, so as to measure elastic information at the target detection position of the object to be detected.
Optionally, the contact parameter includes a pressure value applied to the object to be detected by the detection probe; the control module 42 is specifically configured to: and if the pressure value is greater than a first preset pressure threshold value, controlling the detection probe to transmit and receive ultrasonic signals to the object to be detected.
Further, the control module 42 is further configured to: and when the pressure value is greater than a second preset pressure threshold value, controlling the detection probe to carry out shear wave excitation on the target detection position of the object to be detected, wherein the first preset pressure threshold value is smaller than the second preset pressure threshold value.
Optionally, the contact parameter includes a displacement value of the detection probe relative to the object to be detected; the control module 42 is specifically configured to: and if the displacement value is larger than a first preset displacement threshold value, controlling the detection probe to transmit and receive ultrasonic signals to the object to be detected.
Further, the control module 42 is further configured to: and when the displacement value is larger than a second preset displacement threshold value, controlling the detection probe to carry out shear wave excitation on the target detection position of the object to be detected, wherein the first preset displacement threshold value is smaller than the second preset displacement threshold value.
Optionally, the control module 42 is further configured to: determining the refreshing speed of the ultrasonic signal according to refreshing parameters set by a user; and controlling a detection probe to transmit and receive ultrasonic signals to the object to be detected according to the refreshing speed.
Further, the control module 42 is specifically configured to: generating an ultrasonic image of the object to be detected according to the received ultrasonic echo signal, wherein the ultrasonic image is used for indicating a user to judge the current detection position; and determining the target detection position of the object to be detected according to the judgment result.
In this embodiment, reference may be made to the description related to the method embodiment for a part of the embodiment where the specific functional implementation of each module is not described in detail.
FIG. 5 is a schematic structural diagram of a tissue elasticity detection system according to an exemplary embodiment of the present invention.
As shown in fig. 5, the system provided in this embodiment includes: a detection probe 51 and a control device 52; wherein the control equipment is connected with the detection probe; the detection probe is provided with a parameter sensor 511, which is used for acquiring contact parameters between the detection probe and an object to be detected and sending the contact parameters to a control device, wherein the contact parameters are used for representing the contact degree between the detection probe and the object to be detected; the control device is configured to: if the contact parameter meets a first threshold condition, controlling the detection probe to transmit and receive ultrasonic signals to the object to be detected so as to determine the target detection position of the object to be detected; and if the contact parameter meets a second threshold condition, controlling the detection probe to carry out shear wave excitation on the target detection position of the object to be detected so as to measure the elastic information at the target detection position of the object to be detected.
Further, the system provided by the present embodiment further includes a display unit 521, which may be disposed on the control device 52 and integrated with the control device, as shown in fig. 5. In another possible embodiment, the display unit may also be a separate display, which is connected to the control device by wire or wirelessly.
Further, in the system provided by the present embodiment, the detection probe 51 is provided with a membrane switch 512 for controlling the detection probe to perform shear wave excitation, and the membrane switch is ergonomically arranged at the grip of the detection probe, so as to facilitate the touch operation of the operator.
Further, referring to fig. 5, the system provided in this embodiment further includes a foot switch 53 connected to the detection probe for controlling the detection probe to perform shear wave excitation.
It should be noted that the control device in the present embodiment may be, but is not limited to, a computer, a microprocessor, a central processing unit, or the like.
Optionally, the contact parameter includes a pressure value applied to the object to be detected by the detection probe; the control device 52 is specifically configured to: and if the pressure value is greater than a first preset pressure threshold value, controlling the detection probe to transmit and receive ultrasonic signals to the object to be detected.
Further, the control device 52 is further configured to: and when the pressure value is greater than a second preset pressure threshold value, controlling the detection probe to carry out shear wave excitation on the target detection position of the object to be detected, wherein the first preset pressure threshold value is smaller than the second preset pressure threshold value.
Optionally, the contact parameter includes a displacement value of the detection probe relative to the object to be detected; the control device 52 is specifically configured to: and if the displacement value is larger than a first preset displacement threshold value, controlling the detection probe to transmit and receive ultrasonic signals to the object to be detected.
Further, the control device 52 is further configured to: and when the displacement value is larger than a second preset displacement threshold value, controlling the detection probe to carry out shear wave excitation on the target detection position of the object to be detected, wherein the first preset displacement threshold value is smaller than the second preset displacement threshold value.
Optionally, the control device 52 is further configured to: determining the refreshing speed of the ultrasonic signal according to refreshing parameters set by a user; and controlling a detection probe to transmit and receive ultrasonic signals to the object to be detected according to the refreshing speed.
Further, the control device 52 is specifically configured to: receiving an ultrasonic signal returned by the object to be detected; generating an ultrasonic image of the object to be detected according to the returned ultrasonic signal, wherein the ultrasonic image is used for indicating a target person to judge the current detection position; and determining the target detection position of the object to be detected according to the judgment result.
In the embodiment, the ultrasonic signal transmitting time-delay measuring method and the ultrasonic signal transmitting device have the advantages that the phenomenon that an operator judges to transmit an ultrasonic signal according to subjective experience is avoided, the energy-saving effect is achieved, meanwhile, the problem that an elastography result or measurement is unstable due to the fact that the operator judges to transmit an excitation shear wave according to the subjective experience is solved, the stability and the accuracy of the measurement result are improved while energy is saved, and the operation efficiency is improved; furthermore, when the corresponding parameters of the sensor meet the corresponding preset threshold conditions, the operator triggers the probe to vibrate by treading the arranged foot switch or touching the membrane switch on the probe, namely, shear wave excitation is carried out, the operation of the operator can be facilitated, the probe is kept stable, and the stability, the correctness and the operation efficiency of the measurement result are further improved.
In this embodiment, reference may be made to the description related to the method embodiment for a part of the embodiment where the specific functional implementation of each module is not described in detail.
Fig. 6 is a schematic diagram of a hardware structure of a measurement device according to an embodiment of the present invention. As shown in fig. 6, the present embodiment provides a measurement apparatus 60 including: at least one processor 601 and memory 602. The processor 601 and the memory 602 are connected by a bus 603.
In a specific implementation, the at least one processor 601 executes the computer-executable instructions stored in the memory 602, so that the at least one processor 601 performs the tissue elasticity detection method in the above-described method embodiments.
For a specific implementation process of the processor 601, reference may be made to the above method embodiments, which implement the principle and the technical effect similarly, and details of this embodiment are not described herein again.
In the embodiment shown in fig. 6, it should be understood that the Processor may be a Central Processing Unit (CPU), other general purpose processors, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the present invention may be embodied directly in a hardware processor, or in a combination of the hardware and software modules within the processor.
The memory may comprise high speed RAM memory and may also include non-volatile storage NVM, such as at least one disk memory.
The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended ISA (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, the buses in the figures of the present application are not limited to only one bus or one type of bus.
Another embodiment of the present application provides a computer-readable storage medium, in which computer-executable instructions are stored, and when a processor executes the computer-executable instructions, the method for detecting tissue elasticity in the above-mentioned method embodiments is implemented.
The computer-readable storage medium may be implemented by any type of volatile or non-volatile memory device or combination thereof, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk. Readable storage media can be any available media that can be accessed by a general purpose or special purpose computer.
An exemplary readable storage medium is coupled to the processor such the processor can read information from, and write information to, the readable storage medium. Of course, the readable storage medium may also be an integral part of the processor. The processor and the readable storage medium may reside in an Application Specific Integrated Circuits (ASIC). Of course, the processor and the readable storage medium may also reside as discrete components in the apparatus.
Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (11)
1. A method of tissue elasticity detection, comprising:
acquiring a contact parameter between a detection probe and an object to be detected, wherein the contact parameter is used for representing the contact degree between the detection probe and the object to be detected;
if the contact parameter meets a first threshold condition, controlling the detection probe to transmit and receive ultrasonic signals to the object to be detected so as to determine the target detection position of the object to be detected;
and if the contact parameter meets a second threshold condition, controlling the detection probe to carry out shear wave excitation on the target detection position of the object to be detected so as to measure the elastic information at the target detection position of the object to be detected.
2. The method of claim 1, wherein the contact parameters include pressure values applied by a detection probe to the object to be tested;
if the contact parameter meets a first threshold condition, controlling the detection probe to transmit and receive ultrasonic signals to the object to be detected, including:
and if the pressure value is greater than a first preset pressure threshold value, controlling the detection probe to transmit and receive ultrasonic signals to the object to be detected.
3. The method of claim 2, wherein if the contact parameter satisfies a second threshold condition, controlling the detection probe to perform shear wave excitation to a target detection position of the object to be detected comprises:
if the pressure value is larger than a second preset pressure threshold value, controlling the detection probe to carry out shear wave excitation on the target detection position of the object to be detected;
wherein the first preset pressure threshold is smaller than the second preset pressure threshold.
4. The method according to claim 1, wherein the contact parameters comprise displacement values of a detection probe relative to the object to be measured;
if the contact parameter meets a first threshold condition, controlling the detection probe to transmit and receive ultrasonic signals to the object to be detected, including:
and if the displacement value is larger than a first preset displacement threshold value, controlling the detection probe to transmit and receive ultrasonic signals to the object to be detected.
5. The method of claim 4, wherein if the contact parameter satisfies a second threshold condition, controlling the detection probe to perform shear wave excitation to the target detection position of the object to be detected comprises:
if the displacement value is larger than a second preset displacement threshold value, controlling the detection probe to carry out shear wave excitation on the target detection position of the object to be detected;
wherein the first preset displacement threshold is smaller than the second preset displacement threshold.
6. The method of any one of claims 1-5, further comprising:
determining the refreshing speed of the ultrasonic signal according to refreshing parameters set by a user;
and controlling a detection probe to transmit and receive ultrasonic signals to the object to be detected according to the refreshing speed.
7. The method according to any one of claims 1-5, wherein said determining a target detection position of the object to be measured comprises:
generating an ultrasonic image of the object to be detected according to the received ultrasonic echo signal, wherein the ultrasonic image is used for indicating a user to judge the current detection position;
and determining the target detection position of the object to be detected according to the judgment result.
8. The method of any one of claims 1-5, further comprising:
and if the contact parameter meets a second threshold condition and a trigger signal is detected, controlling the detection probe to carry out shear wave excitation on the target detection position of the object to be detected, wherein the trigger signal is generated when a user touches a switch on the detection probe or steps on a foot switch connected with the detection probe.
9. A tissue elasticity detection device, comprising:
the device comprises an acquisition module, a detection module and a detection module, wherein the acquisition module is used for acquiring contact parameters between a detection probe and an object to be detected, and the contact parameters are used for representing the contact degree between the detection probe and the object to be detected;
the control module is used for controlling the detection probe to transmit and receive ultrasonic signals to the object to be detected if the contact parameter meets a first threshold condition so as to determine the target detection position of the object to be detected;
the control module is further configured to control the detection probe to perform shear wave excitation on the target detection position of the object to be detected if the contact parameter meets a second threshold condition, so as to measure elastic information at the target detection position of the object to be detected.
10. A tissue elasticity detection system, comprising: a detection probe and a control device; wherein the control equipment is connected with the detection probe;
the detection probe is provided with a parameter sensor and is used for acquiring contact parameters between the detection probe and an object to be detected and sending the contact parameters to a control device, and the contact parameters are used for expressing the contact degree between the detection probe and the object to be detected;
the control device is configured to: if the contact parameter meets a first threshold condition, controlling the detection probe to transmit and receive ultrasonic signals to the object to be detected so as to determine the target detection position of the object to be detected; and if the contact parameter meets a second threshold condition, controlling the detection probe to carry out shear wave excitation on the target detection position of the object to be detected so as to measure the elastic information at the target detection position of the object to be detected.
11. A computer-readable storage medium having computer-executable instructions stored thereon, which when executed by a processor, implement the tissue elasticity detection method according to any one of claims 1 to 7.
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| CN202110368522.7A CN112998759A (en) | 2021-04-06 | 2021-04-06 | Tissue elasticity detection method, device and system |
| PCT/CN2022/085066 WO2022213928A1 (en) | 2021-04-06 | 2022-04-02 | Tissue elasticity testing method, apparatus and system |
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| CN202110368522.7A CN112998759A (en) | 2021-04-06 | 2021-04-06 | Tissue elasticity detection method, device and system |
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