WO2020192404A1

WO2020192404A1 - Method and apparatus for detecting ultrasonic measurement depth of ultrasonic elasticity measurement instrument having image guide function

Info

Publication number: WO2020192404A1
Application number: PCT/CN2020/078442
Authority: WO
Inventors: 何琼; 邵金华; 孙锦; 段后利
Original assignee: 无锡声美达医学技术有限公司
Priority date: 2019-03-28
Filing date: 2020-03-09
Publication date: 2020-10-01
Also published as: CN111743570A

Abstract

Disclosed are a method and apparatus for detecting an ultrasonic measurement depth of an ultrasonic elasticity measurement instrument (200) having an image guide function. The ultrasonic elasticity measurement instrument (200) is used for measuring the elasticity of elastic tissue in an ultrasonic pulse-echo mode by means of a mechanical vibrator generating low-frequency vibration. The method comprises: carrying out, on a test phantom (300), ultrasonic pulse transmission that conforms to an image guide type, wherein the phantom (300) is provided with a target spot at a predetermined depth; receiving an echo signal generated by the target spot for an ultrasonic signal; and calculating the maximum depth of the target spot according to the echo signal, so as to determine an ultrasonic measurement depth of an ultrasonic elasticity measurement instrument (200).

Description

Method and device for detecting ultrasonic measurement depth of ultrasonic elasticity measuring instrument with image guiding function

Technical field

This specification relates to the technical field of ultrasound imaging, and more specifically, to a method and device for detecting the ultrasound measurement depth of an ultrasound elasticity measuring instrument with image guidance function.

Background technique

Ultrasound elastography is a technique for quantitatively detecting the elastic modulus of tissue. This technology emits low-frequency shear waves to the liver through the body surface. The propagation characteristics of shear waves in different elastic tissues are significantly different. By detecting the propagation characteristics of shear waves, tissue elasticity can be accurately and quantitatively calculated.

But there is a disadvantage, that is, the technology is usually used alone at present, and it is impossible to know the tissue structure information of the detection area, especially the two-dimensional structure information of the tissue. The technician can usually only set up and arrange for ultrasound elastography based on experience. Set of ultrasound probes. Therefore, when performing elasticity testing, if there are factors such as large blood vessels, cysts or ascites inside that will affect the accuracy of the elasticity testing results, detection errors will occur because they cannot be avoided (see Lu Chengzhen, Wang Yi. Instantaneous Elastography Evaluation of the research progress of liver fibrosis[J].Journal of Clinical Hepatobiliary Diseases.2010(03)); In addition, for the abnormal elasticity test results, because the structural information of the corresponding area cannot be displayed and referenced at the same time, the doctor can not only rely on the Abnormal elasticity test results to assess whether there is tissue structure disease inside. To overcome this problem, an image-guided ultrasonic elasticity measuring instrument is proposed. The image-guided ultrasonic measurement depth of the ultrasonic elasticity measuring instrument with image-guided function is a key index to ensure the accuracy of elasticity measurement, and the detection and determination of the ultrasonic measurement depth range becomes particularly important.

Therefore, how to accurately and effectively detect the ultrasonic measurement depth of an ultrasonic elasticity measuring instrument with image guidance function has become a problem to be solved.

Summary of the invention

One purpose of the embodiments of this specification is to provide a new technical solution for detecting the ultrasonic measurement depth of an ultrasonic elasticity measuring instrument.

According to the first aspect of this specification, a method for detecting the ultrasonic measurement depth of an ultrasonic elasticity measuring instrument with image guidance function is provided. The instrument is used for low-frequency vibration generated by a mechanical vibrator and using ultrasonic pulse-echo The method measures the elasticity of elastic tissue, and the method includes:

Transmitting an ultrasonic pulse conforming to the image-guided type to the test phantom, the phantom is provided with a target point at a predetermined depth;

Receive the echo signal generated by the target on the ultrasonic signal;

The maximum depth of the target point is calculated according to the echo signal, so as to determine the ultrasonic measurement depth of the ultrasonic elasticity measuring instrument.

Wherein, the image guidance type is A-mode ultrasound, B-mode ultrasound, M-mode ultrasound or others or a combination thereof.

There are one or more targets.

The target point is set within the depth range of 0.5cm-25cm of the analog.

According to the second aspect of this specification, there is provided a device for detecting the ultrasonic measurement depth of an ultrasonic elasticity measuring instrument with image guidance function. The instrument is used for low-frequency vibration generated by a mechanical vibrator and using an ultrasonic pulse-echo method. To measure the elasticity of elastic tissue, the device includes:

Ultrasonic transmitting probe, which is used to perform ultrasonic detection conforming to the image-guided type on the test phantom, the phantom is provided with a target point at a predetermined depth;

Ultrasonic receiving probe, used to receive the echo signal generated by the target on the ultrasonic signal;

The measurement depth calculation unit calculates the maximum depth of the target point according to the echo signal, thereby determining the ultrasonic measurement depth of the ultrasonic elasticity measuring instrument.

Wherein, the image guidance type is A-mode ultrasound, B-mode ultrasound, M-mode ultrasound or others or a combination thereof. .

There are one or more targets.

The target point is set within the depth range of 0.5cm-25cm of the analog.

One beneficial effect of this specification is that the detection method in this embodiment determines the ultrasonic measurement depth of the ultrasonic elasticity measuring instrument by performing ultrasonic detection of the analogue with a target point at a specific depth in accordance with the image-guided type.

Through the following detailed description of exemplary embodiments of this specification with reference to the accompanying drawings, other features and advantages of this specification will become clear.

Description of the drawings

The drawings incorporated in the specification and constituting a part of the specification illustrate the embodiments of the specification, and together with the description are used to explain the principle of the specification.

Figure 1 is a schematic diagram of a hardware configuration that can be used to implement the embodiments of this specification.

Fig. 2 is a flowchart of a detection method according to an embodiment of the present specification.

detailed description

Various exemplary embodiments of the present specification will now be described in detail with reference to the accompanying drawings. It should be noted that unless specifically stated otherwise, the relative arrangement of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of this specification.

The following description of at least one exemplary embodiment is merely illustrative in fact, and is by no means as any limitation to this specification and its application or use.

The techniques, methods, and equipment known to persons of ordinary skill in the relevant fields may not be discussed in detail, but where appropriate, the techniques, methods, and equipment should be regarded as part of the specification.

In all the examples shown and discussed herein, any specific value should be interpreted as merely exemplary and not as limiting. Therefore, other examples of the exemplary embodiment may have different values.

It should be noted that similar reference numerals and letters indicate similar items in the following drawings, so once a certain item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

Fig. 1 shows a schematic diagram of the hardware device of this embodiment.

As shown in FIG. 1, the hardware equipment in this embodiment includes a device 100 for detecting ultrasonic measurement depth, an ultrasonic elasticity measuring instrument 200 and a simulation body 300.

The ultrasonic elasticity measuring instrument 200 is used, for example, to measure organs and the like using ultrasonic elasticity measurement technology to obtain physical indicators such as elasticity and sound attenuation value, and thereby reflect the health of the organ. The ultrasonic elasticity measuring instrument 200 is provided with a probe 201. By moving the probe 201, different detection positions and detection areas can be selected.

The simulation body 300 is, for example, a passive device that is composed of ultrasonic elastic tissue-like materials in different ways, and is used to detect the measurement capability of an ultrasonic imaging instrument. The imitation body 300 can provide a standardized detection object for the test of the ultrasonic elasticity measuring instrument, which is beneficial to the quantitative analysis of the measuring ability of the instrument.

The device 100 for detecting the ultrasonic measurement depth is, for example, used for detecting the ultrasonic measurement depth of the ultrasonic imaging instrument 200 to determine the image-guided ultrasonic measurement depth. The device 100 may be integrated with an ultrasonic elasticity measuring instrument, or may be partially separated from it.

The hardware configuration shown in Fig. 1 is only for explanatory purposes, and is by no means intended to limit this specification, its application or usage.

According to an embodiment of this specification, as shown in Fig. 2, a method for detecting the ultrasonic measurement depth of an ultrasonic elasticity measuring instrument with image guidance function is provided, which is used for low-frequency vibration generated by a mechanical vibrator, The elastic tissue elasticity is measured by means of ultrasonic pulse-echo, and the method includes:

Step 101: Perform an ultrasonic pulse emission conforming to the image-guided type to a test phantom, the phantom is provided with a target point at a predetermined depth;

Step 102, receiving the echo signal generated by the target point on the ultrasonic signal;

Step 103: Calculate the maximum depth of the target point according to the echo signal, thereby determining the ultrasonic measurement depth of the ultrasonic elasticity measuring instrument.

Wherein, there are one or more target points, for example, set in the analog body in the depth direction at an interval of 0.1 cm.

The target point is set within the depth range of 0.5cm-25cm of the analog.

According to another embodiment of the present specification, there is provided a device for detecting the ultrasonic measurement depth of an ultrasonic elasticity measuring instrument with image guidance function. The instrument is used for low-frequency vibration generated by a mechanical vibrator and using ultrasonic pulse-echo Method to measure the elasticity of elastic tissue, the device includes:

There are one or more targets.

The target point is set within the depth range of 0.5cm-25cm of the analog.

It should be noted that in the foregoing embodiments, elasticity is used as a physical index for description. When the physical index is another index such as sound attenuation value, the implementation of the method in the foregoing embodiment is the same as the case where the physical index is elastic. Repeat.

This manual can be a system, method and/or computer program product. The computer program product may include a computer-readable storage medium loaded with computer-readable program instructions for enabling a processor to implement various aspects of this specification.

The computer-readable storage medium may be a tangible device that can hold and store instructions used by the instruction execution device. The computer-readable storage medium may be, for example, but not limited to, an electrical storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination of the foregoing. More specific examples of computer-readable storage media (non-exhaustive list) include: portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM) Or flash memory), static random access memory (SRAM), portable compact disk read-only memory (CD-ROM), digital versatile disk (DVD), memory stick, floppy disk, mechanical encoding device, such as a printer with instructions stored thereon The protruding structure in the hole card or groove, and any suitable combination of the above. The computer-readable storage medium used here is not interpreted as a transient signal itself, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through waveguides or other transmission media (for example, light pulses through fiber optic cables), or through wires Transmission of electrical signals.

The computer-readable program instructions described herein can be downloaded from a computer-readable storage medium to various computing/processing devices, or downloaded to an external computer or external storage device via a network, such as the Internet, a local area network, a wide area network, and/or a wireless network. The network may include copper transmission cables, optical fiber transmission, wireless transmission, routers, firewalls, switches, gateway computers, and/or edge servers. The network adapter card or network interface in each computing/processing device receives computer-readable program instructions from the network, and forwards the computer-readable program instructions for storage in the computer-readable storage medium in each computing/processing device .

The computer program instructions used to perform the operations of this manual can be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-related instructions, microcode, firmware instructions, status setting data, or in one or more programming languages. Source code or object code written in any combination, the programming language includes object-oriented programming languages such as Smalltalk, C++, etc., and conventional procedural programming languages such as "C" language or similar programming languages. Computer-readable program instructions can be executed entirely on the user's computer, partly on the user's computer, executed as a stand-alone software package, partly on the user's computer and partly executed on a remote computer, or entirely on the remote computer or server carried out. In the case of a remote computer, the remote computer can be connected to the user's computer through any kind of network, including a local area network (LAN) or a wide area network (WAN), or it can be connected to an external computer (for example, using an Internet service provider to access the Internet connection). In some embodiments, an electronic circuit, such as a programmable logic circuit, a field programmable gate array (FPGA), or a programmable logic array (PLA), can be customized by using the status information of the computer-readable program instructions. The computer-readable program instructions are executed to realize various aspects of this specification.

Here, various aspects of this specification are described with reference to flowcharts and/or block diagrams of methods, devices (systems) and computer program products according to embodiments of this specification. It should be understood that each block of the flowcharts and/or block diagrams and combinations of blocks in the flowcharts and/or block diagrams can be implemented by computer-readable program instructions.

These computer-readable program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, thereby producing a machine such that when these instructions are executed by the processor of the computer or other programmable data processing device , A device that implements the functions/actions specified in one or more blocks in the flowcharts and/or block diagrams is produced. It is also possible to store these computer-readable program instructions in a computer-readable storage medium. These instructions make computers, programmable data processing apparatuses, and/or other devices work in a specific manner, so that the computer-readable medium storing instructions includes An article of manufacture, which includes instructions for implementing various aspects of the functions/actions specified in one or more blocks in the flowchart and/or block diagram.

It is also possible to load computer-readable program instructions onto a computer, other programmable data processing device, or other equipment, so that a series of operation steps are executed on the computer, other programmable data processing device, or other equipment to produce a computer-implemented process , So that the instructions executed on the computer, other programmable data processing apparatus, or other equipment realize the functions/actions specified in one or more blocks in the flowcharts and/or block diagrams.

The flowcharts and block diagrams in the accompanying drawings show the possible implementation architecture, functions, and operations of the system, method, and computer program product according to multiple embodiments of this specification. In this regard, each block in the flowchart or block diagram may represent a module, program segment, or part of an instruction, and the module, program segment, or part of an instruction contains one or more functions for implementing the specified logical function. Executable instructions. In some alternative implementations, the functions marked in the block may also occur in a different order from the order marked in the drawings. For example, two consecutive blocks can actually be executed in parallel, or they can sometimes be executed in the reverse order, depending on the functions involved. It should also be noted that each block in the block diagram and/or flowchart, and the combination of the blocks in the block diagram and/or flowchart, can be implemented by a dedicated hardware-based system that performs the specified functions or actions Or it can be realized by a combination of dedicated hardware and computer instructions. It is well known to those skilled in the art that implementation through hardware, implementation through software, and implementation through a combination of software and hardware are all equivalent.

The various embodiments of this specification have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Without departing from the scope and spirit of the described embodiments, many modifications and changes are obvious to those of ordinary skill in the art. The choice of terms used herein is intended to best explain the principles, practical applications, or technical improvements of the various embodiments in the market, or to enable other ordinary technical persons in the art to understand the various embodiments disclosed herein. The scope of this specification is defined by the appended claims.

Claims

A method for detecting the ultrasonic measurement depth of an ultrasonic elasticity measuring instrument with image guidance function, the instrument is used to measure the elasticity of elastic tissue by means of ultrasonic pulse-echo method with low frequency vibration generated by a mechanical vibrator. Methods include:

Transmitting an ultrasonic pulse conforming to the image-guided type to the test phantom, the phantom is provided with a target point at a predetermined depth;

Receive the echo signal generated by the target on the ultrasonic signal;

The maximum depth of the target point is calculated according to the echo signal, thereby determining the ultrasonic measurement depth of the ultrasonic elasticity measuring instrument.
The method according to claim 1, wherein the image guidance type is A-mode ultrasound, B-mode ultrasound, M-mode ultrasound, or other or a combination thereof.
The method according to claim 1 or 2, wherein the target is one or more.
The method according to any one of claims 1 to 3, wherein the target point is set within the depth range of 0.5cm-25cm of the phantom.
A device for detecting the ultrasonic measurement depth of an ultrasonic elasticity measuring instrument with an image guiding function, the instrument being used to measure the elasticity of elastic tissue by means of low-frequency vibration generated by a mechanical vibrator using an ultrasonic pulse-echo method. The device includes:

Ultrasonic transmitting probe, which is used to perform ultrasonic detection conforming to the image-guided type on the test phantom, the phantom is provided with a target point at a predetermined depth;

Ultrasonic receiving probe, used to receive the echo signal generated by the target on the ultrasonic signal;

The measurement depth calculation unit calculates the maximum depth of the target point according to the echo signal, thereby determining the ultrasonic measurement depth of the ultrasonic elasticity measuring instrument.
The device according to claim 5, wherein the image guidance type is A-mode ultrasound, B-mode ultrasound, M-mode ultrasound, or other or a combination thereof.
The device according to claim 5 or 6, wherein the target point is one or more.
7. The device according to any one of claims 5-7, wherein the target point is arranged within a depth range of 0.5 cm-25 cm of the phantom.