WO2022213929A1

WO2022213929A1 - Elastography method and apparatus, electronic device, and storage medium

Info

Publication number: WO2022213929A1
Application number: PCT/CN2022/085068
Authority: WO
Inventors: 何琼; 邵金华; 孙锦; 贾继东; 尤红; 欧晓娟
Original assignee: 无锡海斯凯尔医学技术有限公司; 首都医科大学附属北京友谊医院
Priority date: 2021-04-06
Filing date: 2022-04-02
Publication date: 2022-10-13
Also published as: CN113081038A; CN113081038B

Abstract

An elastography method and apparatus, an electronic device, and a storage medium. The method comprises: applying vibrational excitation to a tissue under test and performing ultrasonic detection to obtain an ultrasonic echo signal (S101); generating an ultrasonic detection image (32) and an elasticity detection image according to the ultrasonic echo signal, wherein the elasticity detection image is used for characterizing tissue elasticity detection information and the signal quality of an ultrasonic detection signal at a corresponding moment (S102); and according to the positional relationship between a test area corresponding to the ultrasonic detection image (32) and a test area corresponding to the elasticity detection image, superimposing and displaying the ultrasonic detection image (32) and the elasticity detection image (S103). After the ultrasonic detection image (32) is generated, the elasticity detection image is superimposed and displayed on the ultrasonic detection image (32), and the imaging quality of the ultrasonic detection image (32) is characterized by the elasticity detection image, so that an operator can quickly control the quality of a detection result, eliminating the influence caused by a poor test position and respiration of a testee, etc., the ultrasonic imaging quality is improved, and the accuracy of detection results is improved.

Description

Elastography method, device, electronic device and storage medium

technical field

The present application relates to the technical field of medical equipment, and in particular, to an elastic imaging method, device, electronic device and storage medium.

Background technique

This section is intended to provide a background or context for the embodiments of the application that are recited in the claims. The descriptions herein are not admitted to be prior art by inclusion in this section.

Ultrasound imaging technology is widely used in clinical detection because of its advantages of real-time, cheap, non-invasive and non-ionizing radiation. By obtaining the physiological structure information of biological tissue, the lesion detection of biological tissue can be realized. However, in the early stage of biological tissue, since its structure does not change significantly, traditional ultrasound imaging methods such as B-ultrasound are not sensitive to early lesions of biological tissue. Elastography is a new type of imaging technology that has emerged in recent years. It excites biological tissue to vibrate by means of shear waves, and uses ultrasonic signals to track the deformation information of biological tissue before and after vibration to obtain the strain, shear modulus, and strain of biological tissue. Mechanical characteristics such as elastic modulus, and the state analysis of biological tissue is carried out according to the mechanical characteristics of biological tissue. Elastography technology can provide important data support for the screening of early lesions in biological tissues.

In the prior art, the results of elasticity measurement are usually displayed to the operator of the equipment in the form of quantitative parameter values. The operator can detect the state of biological tissue by observing the ultrasonic image and combining the quantitative parameter values of the elasticity imaging.

However, due to the non-uniformity of human tissue, poor test position and human respiration during elastic measurement will affect the quality of ultrasound imaging, resulting in inaccurate test results.

SUMMARY OF THE INVENTION

The present application provides an elastic imaging method, device, electronic device and storage medium, which are used to solve the problem of poor ultrasonic imaging quality in the prior art, resulting in inaccurate detection results.

According to a first aspect of the embodiments of the present application, the present application provides an elastography method, the method comprising:

Apply vibration excitation to the tissue to be tested and perform ultrasonic detection to obtain ultrasonic echo signals; generate ultrasonic detection images and elasticity detection images according to the ultrasonic echo signals, wherein the elasticity detection images are used to represent tissue elasticity detection information and The signal quality of the ultrasonic detection signal at the corresponding moment; the ultrasonic detection image and the elasticity detection image are superimposed and displayed according to the positional relationship between the test area corresponding to the ultrasonic detection image and the test area corresponding to the elasticity detection image.

In a possible implementation manner, the elasticity detection image includes at least one position mark, and the position mark is used to represent the propagation position of the shear wave generated by the vibration excitation inside the tissue to be measured, according to the The positional relationship between the test area corresponding to the ultrasonic inspection image and the test area corresponding to the elasticity inspection image, and superimposing and displaying the ultrasonic inspection image and the elasticity inspection image, including: taking the test area of the ultrasonic inspection image as a benchmark, determining positioning the coordinate system; according to the positional relationship between the position mark and the test area, determine the position coordinates of the position mark in the positioning coordinate system; according to the position coordinates, superimpose and display the position mark on the on ultrasound images.

In a possible implementation manner, the elasticity detection image is a pseudo-color image, each of the position markers corresponds to a different pseudo-color color, and the pseudo-color color is used to represent the shear wave in the tissue to be tested. During internal transmission, the corresponding time when arriving at different positions.

In a possible implementation manner, each of the position markers has different smoothness, and the smoothness is used to characterize the propagation stability of the shear wave.

In a possible implementation manner, the method further includes: acquiring configuration information; and determining the range of the test area according to the configuration information.

According to a second aspect of the embodiments of the present application, the present application provides an elastic imaging device, including:

The detection module is used to apply vibration excitation to the tissue to be tested and perform ultrasonic detection to obtain ultrasonic echo signals;

a generating module, configured to generate an ultrasonic detection image and an elasticity detection image according to the ultrasonic echo signal, wherein the elasticity detection image is used to represent the tissue elasticity detection information and the signal quality of the ultrasonic detection signal at a corresponding moment;

The display module is configured to superimpose and display the ultrasonic detection image and the elasticity detection image according to the positional relationship between the test area corresponding to the ultrasonic detection image and the test area corresponding to the elasticity detection image.

In a possible implementation manner, the elasticity detection image includes at least one position mark, and the position mark is used to represent the propagation position of the shear wave generated by the vibration excitation inside the tissue to be measured, and the display The module is specifically used to: determine the positioning coordinate system based on the test area of the ultrasonic detection image; according to the positional relationship between the position mark and the test area, determine the position mark in the positioning coordinate system. Position coordinates; according to the position coordinates, superimpose and display the position mark on the ultrasonic detection image.

In a possible implementation manner, the apparatus further includes a configuration module, configured to: acquire configuration information; and determine the scope of the test area according to the configuration information.

According to a third aspect of the embodiments of the present application, the present application provides an electronic device, including: a memory, a processor, and a computer program;

Wherein, the computer program is stored in the memory, and is configured to execute the elastography method according to any one of the first aspect of the embodiments of the present application by the processor.

According to a fourth aspect of the embodiments of the present application, the present application provides a computer-readable storage medium, where computer-executable instructions are stored in the computer-readable storage medium, and when the computer-executable instructions are executed by a processor, are used to implement the The elastography method according to any one of the first aspects of the embodiments of the present application.

The elastography method, device, electronic device and storage medium provided by the present application obtain an ultrasonic echo signal by applying vibration excitation to the tissue to be tested and performing ultrasonic detection; according to the ultrasonic echo signal, an ultrasonic detection image and an elastic detection image are generated. image, wherein the elasticity detection image is used to represent the tissue elasticity detection information and the signal quality of the ultrasonic detection signal at the corresponding moment; according to the positional relationship between the test area corresponding to the ultrasonic detection image and the test area corresponding to the elasticity detection image , the ultrasonic testing image and the elasticity testing image are superimposed and displayed, because after the ultrasonic testing image is generated, the generated elasticity testing image is superimposed and displayed on the ultrasonic testing image, and the imaging quality of the ultrasonic testing image is checked by using the elasticity testing image. Characterization enables the operator to quickly control the test results, eliminate the influence caused by the poor test position and the breathing of the tested human body, improve the quality of ultrasonic imaging, and improve the accuracy of the test results.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description serve to explain the principles of the application.

FIG. 1 is an application scenario diagram of the elastic imaging method provided by the embodiment of the present application;

FIG. 2 is a flowchart of an elastography method provided by an embodiment of the present application;

3 is a schematic diagram of superimposed display of an elasticity detection image and an ultrasonic detection image provided by an embodiment of the present application;

4 is a flowchart of an elastography method provided by another embodiment of the present application;

FIG. 5 is a schematic diagram of a process of quality control according to the smoothness of a position marker provided by an embodiment of the present application;

FIG. 6 is a schematic structural diagram of an elastic imaging device provided by an embodiment of the present application;

FIG. 7 is a schematic diagram of an electronic device according to an embodiment of the present application.

Specific embodiments of the present application have been shown by the above-mentioned drawings, and will be described in more detail hereinafter. These drawings and written descriptions are not intended to limit the scope of the concepts of the present application in any way, but to illustrate the concepts of the present application to those skilled in the art by referring to specific embodiments.

Detailed ways

Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. Where the following description refers to the drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the illustrative examples below are not intended to represent all implementations consistent with this application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as recited in the appended claims.

The application scenarios of the embodiments of the present application are explained below:

FIG. 1 is an application scenario diagram of the elastography method provided by the embodiment of the present application. As shown in FIG. 1 , the elastography method provided by the embodiment of the present application is applied to an electronic device. Elastography device 11 . The elastography device has a detection probe 111, which can simultaneously or sequentially apply vibration excitation and ultrasonic waves to the human body. The elastography device 11 performs ultrasonic elasticity detection on the human body through the elastography method provided in the embodiment of the present application, and obtains the mechanics of the structure of the human internal organs 12. The characteristics of the human internal organs are then judged whether the internal organs 12 are in a healthy state, which provides important data support for the screening of early lesions.

In the prior art, the results of ultrasonic elasticity testing are usually displayed to the operator of the equipment in the form of quantitative parameter values. . However, due to the non-uniformity of human tissue, during the elastic measurement process, the poor test position and human respiration will interfere with the ultrasonic inspection image, affect the quality of ultrasonic imaging, and affect the operator's understanding of the tissue state. judgment. At the same time, the elastic detection results can characterize the propagation process of shear waves. There is a difference between the elastic detection results in the disturbed state and the elastic testing results in the undisturbed state. Improve the imaging quality of ultrasonic inspection images, and improve the operator's accuracy in judging the state of the tissue. Therefore, how to realize the quality control of the ultrasonic inspection images through the elastic inspection results to improve the imaging quality of the ultrasonic inspection images is an urgent problem to be solved at present.

The technical solutions of the present application and how the technical solutions of the present application solve the above-mentioned technical problems will be described in detail below with specific examples. The following specific embodiments may be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below with reference to the accompanying drawings.

FIG. 2 is a flowchart of an elastography method provided by an embodiment of the present application. As shown in FIG. 2 , the elastography method provided in this embodiment is applied to an elastography device, including the following steps:

Step S101, applying vibration excitation to the tissue to be measured and performing ultrasonic detection to obtain ultrasonic echo signals.

Exemplarily, the operator applies vibration excitation to the tissue to be measured by operating the detection probe of the elastography device, which can generate shear waves transmitted from the surface of the tissue to be measured to the interior of the tissue to be measured, and the shear wave causes the inside of the tissue to be measured. Micro-displacement and deformation are generated, and at the same time, ultrasonic detection is applied to the tissue to be measured to obtain the data of the micro-displacement and deformation of the tissue to be measured. Specifically, for example, the detection probe transmits ultrasonic waves to the tissue to be measured and receives the echoes to obtain ultrasonic echo signals, through which the micro-displacement and deformation of the tissue to be measured can be observed.

The execution sequence of applying vibration excitation to the tissue to be tested and performing ultrasonic detection may include various execution sequences, such as applying vibration excitation first and then performing ultrasonic detection, or performing ultrasonic detection first and then applying vibration excitation, or applying vibration excitation and The ultrasonic detection is performed at the same time, which is not specifically limited here, and can be set as required.

Further, when applying vibration excitation to the tissue to be tested and performing ultrasonic detection, the vibration frequencies may be the same or different. In a possible implementation, vibration excitations of different vibration frequencies are sequentially applied to the tissue to be tested. and ultrasonic detection. Specifically, for example, cyclically apply vibration excitation to the tissue to be tested, and during each cycle, change the vibration frequency of the vibration excitation until a preset stop condition is met, and at the same time perform ultrasonic detection on the tissue to be tested, wherein the timing of the ultrasonic detection can be After each vibration excitation of a specific frequency is applied, it may also be after all vibration excitations are applied, which is not specifically limited this time. By applying vibration excitation of different frequencies to the tissue to be tested, shear waves of different frequencies are generated inside the tissue to be tested, and after each vibration excitation, ultrasonic detection is applied to the tissue to be tested correspondingly, so as to achieve different excitation frequencies under different excitation frequencies. Response detection generated by the tissue to be tested.

Step S102 , generating an ultrasonic detection image and an elasticity detection image according to the ultrasonic echo signal, wherein the elasticity detection image is used to represent the tissue elasticity detection information and the signal quality of the ultrasonic detection signal at the corresponding moment.

The signal quality of the ultrasonic detection signal includes: whether the current detection position is suitable, whether it will be affected by, for example, breathing, whether the ultrasonic signal strength of the current detection position is suitable, and the like.

Specifically, the step of applying ultrasonic detection to the tissue to be tested includes generating ultrasonic waves to the tissue to be tested and receiving echoes formed after the ultrasonic waves are blocked by the tissue to be tested. The shear wave generated by the ultrasonic wave stimulates the tissue to be tested, and the tissue to be tested is slightly deformed. Therefore, the ultrasonic echo signal carries the deformation information of the tissue to be tested. The corresponding ultrasonic inspection images can be obtained by performing beamforming and imaging calculation on the ultrasonic echo signals. The specific implementation manner of generating the ultrasonic detection image according to the ultrasonic echo signal belongs to the prior art in the art, and will not be described in detail this time. Further, by performing processing and imaging calculations on the ultrasonic echo signals, a corresponding elasticity detection image can be obtained. Specifically, for example, first filtering the ultrasonic echo signals, and then calculating tissue displacement or tissue displacement on the filtered ultrasonic echo signals. Dependent variables, and motion propagation patterns are plotted. Then, the dispersion curve is determined according to the motion propagation mode diagram, and the phase velocity is determined according to the dispersion curve. The viscoelasticity information of the tissue to be measured is obtained by functional fitting of the phase velocity. The method of fitting the phase velocities corresponding to different propagation velocities to obtain the viscosity parameters is the prior art known to those in the art, and will not be repeated here. Wherein, for example, the elasticity detection image is an image representation of viscoelasticity information, and the elasticity detection image may be realized in the form of a pseudo-color image.

Step S103 , superimposing and displaying the ultrasonic testing image and the elasticity testing image according to the positional relationship between the testing region corresponding to the ultrasonic testing image and the testing region corresponding to the elasticity testing image.

Exemplarily, the ultrasonic detection image is the image information representing the tissue morphology of the test area inside the tissue to be tested, which includes the description information of the spatial position inside the tissue to be tested, and the elasticity detection image is the image information representing the propagation process of the shear wave in the test area. Image information, FIG. 3 is a schematic diagram of a superimposed display of an elasticity detection image and an ultrasonic detection image provided by an embodiment of the application. As shown in FIG. 3 , the elasticity detection image includes a plurality of position marks 31, and the position marks 31 are used to represent vibration excitation. The propagation position of the generated shear wave inside the tissue to be tested, and the propagation position of the shear wave generated by vibration excitation within the tissue to be tested have a real corresponding relationship with the spatial position of the tissue to be tested displayed in the ultrasonic inspection image 32 . Each position marker has different smoothness, and the smoothness is used to characterize the propagation stability of the shear wave. When the smoothness of the position marker 31 is good, it indicates that the propagation stability of the shear wave is good, that is, the The propagation is not affected by the breathing of the tested human body, poor test position, poor signal strength, etc. Therefore, the imaging quality of the ultrasonic detection image 32 is good and the reliability is high; on the contrary, when the smoothness of the position marker 31 Poor, the propagation stability of the shear wave is poor, that is, the propagation of the shear wave is affected by factors such as the breathing of the tested human body and the poor test position. Therefore, the imaging quality of the ultrasonic inspection image 32 is poor and reliable. low degree.

Further, for example, the elasticity imaging device includes a display unit, such as a display screen. When the operator performs elasticity test on the tissue to be tested, the position of the detection probe needs to be adjusted continuously to locate a better test area so that the test area can be tested. The internal tissue state of the tissue can be better represented in the ultrasound image. In this embodiment, the ultrasonic inspection image and the elasticity inspection image are superimposed and displayed on the display screen. At this time, since the elasticity inspection image plays a role in the quality control of the ultrasonic inspection image, the operator is constantly adjusting the position of the inspection probe. In the process of locating a better testing area, the quality control effect of the ultrasonic testing image on the elasticity testing image can be used to better determine whether the current position of the testing probe corresponds to a better testing area, thereby improving the efficiency of locating the testing area , improve the imaging quality of ultrasonic inspection images, and improve the accuracy of inspection results.

By applying vibration excitation to the tissue to be tested and performing ultrasonic detection, an ultrasonic echo signal is obtained; according to the ultrasonic echo signal, an ultrasonic detection image and an elasticity detection image are generated, wherein the elasticity detection image is used to characterize the tissue elasticity detection information and the corresponding time. The signal quality of the ultrasonic inspection signal; according to the positional relationship between the test area corresponding to the ultrasonic inspection image and the test area corresponding to the elasticity inspection image, the ultrasonic inspection image and the elasticity inspection image are superimposed and displayed. The inspection image is superimposed and displayed on the ultrasonic inspection image. The elasticity inspection image is used to characterize the imaging quality of the ultrasonic inspection image, so that the operator can quickly control the inspection results and eliminate the problems caused by the poor test position and the breathing of the tested human body. Improve the quality of ultrasound imaging and improve the accuracy of detection results.

FIG. 4 is a flowchart of an elastography method provided by another embodiment of the present application. As shown in FIG. 4 , the elastography method provided by this embodiment is based on the elastography method provided by the embodiment shown in FIG. S103 is further refined, and the step of acquiring configuration information is added, and the elastography method provided in this embodiment includes the following steps:

Step S201, applying vibration excitation to the tissue to be tested and performing ultrasonic detection to obtain ultrasonic echo signals.

Step S202 , generating an ultrasonic detection image and an elasticity detection image according to the ultrasonic echo signal, wherein the elasticity detection image includes at least one position mark, and the position mark is used to represent the propagation position of the shear wave generated by the vibration excitation inside the tissue to be tested.

In step S203, a positioning coordinate system is determined based on the test area of the ultrasonic inspection image.

Step S204, according to the positional relationship between the position mark and the test area, determine the position coordinates of the position mark in the positioning coordinate system.

Exemplarily, the ultrasonic detection image is image information generated by performing beamforming and imaging calculation on a plurality of ultrasonic echo signals received by the detection probe, wherein the difference between each ultrasonic signal and the area detected by the corresponding ultrasonic echo signal is and is the test area. Therefore, based on the test area corresponding to the ultrasonic echo signal, a coordinate system for describing the spatial position can be established, and the position coordinates in the coordinate system are used to represent the spatial position of the coordinate point. Further, the position marker in the elasticity detection image is also generated by the ultrasonic echo signal, so the position coordinates of the position marker in the coordinate system based on the test area can be determined according to the ultrasonic echo signal.

In a possible implementation manner, the range of the test area can be adjusted and set according to user needs, for example, the configuration information input by the user is obtained, and the range of the test area is determined according to the configuration information. The range of the test area is adjusted through the configuration information, and only the area of interest or the preset range is displayed to avoid the influence of the surrounding non-interesting area or other interference information on the judgment of the result, which can further improve the flexibility and applicability of the algorithm scope.

Step S205 , superimposing and displaying the position mark on the ultrasonic detection image according to the position coordinates.

Specifically, according to the position coordinates, the position mark is displayed at the position coordinates, so as to realize the superimposed display of the position mark and the ultrasonic detection image. This location marker represents the spatial location of the shear wave's arrival over time. Optionally, the position marker is a pseudo-color map, different position markers have different colors, and the different colors represent the time when the shear wave arrives at the position, for example, the position marker A is red, indicating that the shear wave arrives at the position marker The time at A is 50 milliseconds, and location marker B is yellow, indicating that the shear wave arrives at location marker B at 100 milliseconds; location marker C is blue, indicating that the shear wave arrives at location marker C at 150 milliseconds . According to the color change between the position markers, the position markers have a corresponding smoothness, where the smoothness is used to characterize the propagation stability of the shear wave. Exemplarily, the color change between the position marks may be changed according to the color temperature, which is more convenient for the operator to recognize the smoothness of the color change between the position marks. The process of how to perform quality control according to the smoothness of the position marker will be described below with a more specific embodiment.

FIG. 5 is a schematic diagram of a process of quality control according to the smoothness of the position markers provided by the embodiment of the application. As shown in FIG. 5 , the position markers A, B, C, D, and E are respectively superimposed and displayed in the ultrasonic detection image 32 , each position mark 31 represents the position where the shear wave reaches the corresponding human tissue in the ultrasonic detection image. When the operator performs elasticity detection by operating the detection probe 111, the position marks 31 are superimposed and displayed on the ultrasonic detection image 32 in different colors, that is, the position marks A, B, C, D, and E have different pseudo-color colors, for example , the position mark A is red, the position mark B is orange-red, the position mark C is yellow, the position mark D is light blue, and the position mark E is dark blue. Different colors correspond to different times when the shear wave reaches the location.

When the operator moves and operates the detection probe 111 to the first position, the detection environment is not good at this time, and the propagation of the shear wave in the human body is affected, so that the propagation speed of the shear wave in the human body is not uniform, which will lead to The color change from mark position A to mark position E is not smooth. By observing the color change of the position marker 31, the operator judges that the detection environment is not good at this time, so move the detection probe 111 to the second position, and the detection environment is good at this time, that is, the shear wave is not affected by human breathing during the propagation of the shear wave in the human tissue. , uneven tissue blocking, etc., the propagation velocity of the shear wave should be uniform, that is, the color change from position mark A to position mark E changes smoothly. By observing the smoothness of the position marker 31 in the pseudo-color image, the operator can determine whether the test area is disturbed, so as to achieve the purpose of quality control of the ultrasonic inspection image.

In this embodiment, the marking position is displayed in the form of a pseudo-color image, and the imaging quality of the ultrasonic inspection image is expressed by the smoothness of each position marking. The elasticity testing image superimposed on the ultrasonic testing image can serve the purpose of quality control of the ultrasonic testing image. Compared with the technical solution in the prior art that displays the elasticity test results through text marks, the display method of the pseudo-color image can enable the operator to observe the imaging quality of the ultrasonic test image more intuitively and in real time, so as to adjust the test area and avoid the error of the test area. The interference of elasticity detection improves the accuracy of the state detection of the tissue to be tested.

In this embodiment, the implementation manner of step S201-step S202 is the same as the implementation manner of step S101-step S102 in the embodiment shown in FIG. 2 of the present application, and details are not repeated here.

FIG. 6 is a schematic structural diagram of an elastography device provided by an embodiment of the present application, which is applied to an elastography device. As shown in FIG. 6 , the elastography device 3 provided in this embodiment includes:

The detection module 31 is used for applying vibration excitation to the tissue to be tested and performing ultrasonic detection to obtain ultrasonic echo signals;

The generating module 32 is configured to generate an ultrasonic detection image and an elasticity detection image according to the ultrasonic echo signal, wherein the elasticity detection image is used to represent the tissue elasticity detection information and the signal quality of the ultrasonic detection signal at the corresponding moment;

The display module 33 is configured to superimpose and display the ultrasonic detection image and the elasticity detection image according to the positional relationship between the test area corresponding to the ultrasonic detection image and the test area corresponding to the elasticity detection image.

In a possible implementation manner, the elasticity detection image includes at least one position mark, and the position mark is used to represent the propagation position of the shear wave generated by the vibration excitation inside the tissue to be measured, and the display module 33 is specifically used for: ultrasonic detection The test area of the image is used as the benchmark to determine the positioning coordinate system; according to the positional relationship between the position mark and the test area, the position coordinates of the position mark in the positioning coordinate system are determined; according to the position coordinates, the position mark is superimposed and displayed on the ultrasonic inspection image.

In a possible implementation manner, the elasticity detection image is a pseudo-color image, each position marker corresponds to a different pseudo-color color, and the pseudo-color color is used to represent the shear wave when it is transmitted inside the tissue to be tested and reaches different positions. time.

In a possible implementation manner, each position marker has different smoothness, and the smoothness is used to characterize the propagation stability of the shear wave.

In a possible implementation manner, the apparatus further includes a configuration module 34, configured to: acquire configuration information; and determine the scope of the test area according to the configuration information.

The detection module 31 , the generation module 32 and the display module 33 are connected in sequence. The configuration module 34 is connected to the generation module 32, and the elastic imaging device 3 provided in this embodiment can implement the technical solutions of the method embodiments shown in any of FIG. 2 to FIG. Repeat.

FIG. 7 is a schematic diagram of an electronic device provided by an embodiment of the present application. As shown in FIG. 7 , the electronic device 4 provided by this embodiment includes: a memory 41 , a processor 42 and a computer program.

The computer program is stored in the memory 41 and configured to be executed by the processor 42 to implement the elastography method provided by any one of the embodiments corresponding to FIG. 2 to FIG. 5 of the present application.

The memory 41 and the processor 42 are connected through a bus 43 .

The relevant descriptions can be understood by referring to the relevant descriptions and effects corresponding to the steps in the embodiments corresponding to FIG. 2 to FIG. 5 , and details are not repeated here.

An embodiment of the present application provides a computer-readable storage medium on which a computer program is stored, and the computer program is executed by a processor to implement the elastography provided by any of the embodiments corresponding to FIG. 2 to FIG. 5 of the present application method.

Among them, the computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like.

An embodiment of the present application provides a computer program product, including a computer program, which, when executed by a processor, implements the elastography method provided by any one of the embodiments corresponding to FIG. 2 to FIG. 5 of the present application.

In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the device embodiments described above are only illustrative. For example, the division of modules is only a logical function division. In actual implementation, there may be other division methods, for example, multiple modules or components may be combined or integrated. to another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or modules, and may be in electrical, mechanical or other forms.

Other embodiments of the present application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses or adaptations of this application that follow the general principles of this application and include common knowledge or conventional techniques in the technical field not disclosed in this application . The specification and examples are to be regarded as exemplary only, with the true scope and spirit of the application being indicated by the following claims.

It is to be understood that the present application is not limited to the precise structures described above and illustrated in the accompanying drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims

An elastography method, characterized in that the method comprises:

Apply vibration excitation to the tissue to be tested and perform ultrasonic detection to obtain ultrasonic echo signals;

generating an ultrasonic detection image and an elasticity detection image according to the ultrasonic echo signal, wherein the elasticity detection image is used to represent tissue elasticity detection information and the signal quality of the ultrasonic detection signal at a corresponding moment;

According to the positional relationship between the test area corresponding to the ultrasonic detection image and the test area corresponding to the elasticity detection image, the ultrasonic detection image and the elasticity detection image are superimposed and displayed.
The method according to claim 1, wherein the elasticity detection image includes at least one position mark, and the position mark is used to represent the propagation position of the shear wave generated by the vibration excitation inside the tissue to be measured , according to the positional relationship between the testing area corresponding to the ultrasonic testing image and the testing area corresponding to the elasticity testing image, superimposing and displaying the ultrasonic testing image and the elasticity testing image, including:

Determine the positioning coordinate system based on the test area of the ultrasonic detection image;

According to the positional relationship between the position mark and the test area, determine the position coordinates of the position mark in the positioning coordinate system;

According to the position coordinates, the position marker is superimposed and displayed on the ultrasonic inspection image.
The method according to claim 2, wherein the elasticity detection image is a pseudo-color image, each of the position markers corresponds to a different pseudo-color color, and the pseudo-color color is used to represent where the shear wave is located. The time corresponding to the arrival at different positions during the internal transmission of the tissue to be tested.
The method according to claim 3, wherein each of the position markers has a different smoothness, and the smoothness is used to characterize the propagation stability of the shear wave.
The method according to any one of claims 1-4, wherein the method further comprises:

get configuration information;

According to the configuration information, the range of the test area is determined.
An elastography device, characterized in that the device comprises:

The detection module is used to apply vibration excitation to the tissue to be tested and perform ultrasonic detection to obtain ultrasonic echo signals;

a generating module for generating an ultrasonic detection image and an elasticity detection image according to the ultrasonic echo signal, wherein the elasticity detection image is used to characterize the tissue elasticity detection information and the signal quality of the ultrasonic detection signal at the corresponding moment;

The display module is configured to superimpose and display the ultrasonic detection image and the elasticity detection image according to the positional relationship between the test area corresponding to the ultrasonic detection image and the test area corresponding to the elasticity detection image.
The device according to claim 6, wherein the elasticity detection image includes at least one position mark, and the position mark is used to represent the propagation position of the shear wave generated by the vibration excitation inside the tissue to be measured , the display module is specifically used for:

Determine the positioning coordinate system based on the test area of the ultrasonic detection image;

According to the positional relationship between the position mark and the test area, determine the position coordinates of the position mark in the positioning coordinate system;

According to the position coordinates, the position marker is superimposed and displayed on the ultrasonic inspection image.
The device according to claim 7, wherein the elasticity detection image is a pseudo-color image, each of the position markers corresponds to a different pseudo-color color, and the pseudo-color color is used to represent where the shear wave is located. The time corresponding to the arrival at different positions during the internal transmission of the tissue to be tested.
The device according to claim 8, wherein each of the position markers has different smoothness, and the smoothness is used to characterize the propagation stability of the shear wave.
The device according to any one of claims 6-9, wherein the device further comprises a configuration module for:

get configuration information;

According to the configuration information, the range of the test area is determined.
An electronic device, comprising: a memory, a processor and a computer program;

wherein the computer program is stored in the memory and configured to be executed by the processor to implement the elastography method of any one of claims 1 to 5.
A computer-readable storage medium, characterized in that the computer-readable storage medium stores computer-executable instructions, and when the computer-executable instructions are executed by a processor, is used to implement any one of claims 1 to 5. elastography method.
A computer program product comprising a computer program which, when executed by a processor, implements the elastography method of any one of claims 1-5.