CN116421223A

CN116421223A - Ultrasonic image measuring method and ultrasonic measuring system

Info

Publication number: CN116421223A
Application number: CN202210001936.0A
Authority: CN
Inventors: 付强; 温博; 袁海锋; 李雷
Original assignee: Shenzhen Mindray Bio Medical Electronics Co Ltd
Current assignee: Shenzhen Mindray Bio Medical Electronics Co Ltd
Priority date: 2022-01-04
Filing date: 2022-01-04
Publication date: 2023-07-14

Abstract

The ultrasonic image measuring method and ultrasonic measuring system includes the steps of obtaining and displaying an ultrasonic image containing a target focus, displaying an auxiliary measuring pattern for auxiliary measurement on the ultrasonic image after the ultrasonic image is determined to enter a measuring mode, receiving a position adjusting instruction input by a user in real time, adjusting the auxiliary measuring pattern to a target position in response to the position adjusting instruction input by the user, obtaining and displaying the adjusted auxiliary measuring pattern, adjusting the position of the auxiliary measuring pattern according to the user instruction so that the auxiliary measuring pattern contains an area where the target focus is located, and enabling a user to quickly and conveniently move the auxiliary measuring pattern, thereby measuring the target focus based on the auxiliary measuring pattern to obtain and output the long diameter and the short diameter of the target focus.

Description

Ultrasonic image measuring method and ultrasonic measuring system

Technical Field

The application relates to the technical field of ultrasonic signal processing, in particular to an ultrasonic image measuring method and an ultrasonic measuring system.

Background

The ultrasonic measurement system can be used for carrying out ultrasonic imaging on tissues or parts to obtain ultrasonic images, and a user, such as a doctor, can judge tissue lesions, carry out benign and malignant screening on lesions and the like through the ultrasonic images.

In the above-mentioned procedure, it is often necessary to measure the focal area, and the user is often required to manually delineate the edge of the focus and manually measure the length of the focus.

However, the user often needs to go through many operations, which is time-consuming and laborious and inefficient.

Disclosure of Invention

The technical problem that this application mainly solves is that measurement efficiency is not high when ultrasonic measurement.

According to a first aspect, in one embodiment there is provided a method of measuring ultrasound images, comprising:

acquiring and displaying an ultrasonic image containing a target focus;

after determining to enter a measurement mode, displaying an auxiliary measurement pattern on the ultrasonic image, wherein the auxiliary measurement pattern has a preset size and a preset shape;

responding to a position adjustment instruction input by a user, adjusting the auxiliary measurement graph to a target position, and obtaining and displaying an adjusted auxiliary measurement graph, wherein the area of the target focus is in the adjusted auxiliary measurement graph;

Responding to the received measurement instruction, and measuring the long diameter and the short diameter of the target focus according to the adjusted auxiliary measurement pattern and the ultrasonic image;

outputting the long diameter and the short diameter of the target focus.

According to a second aspect, there is provided in one embodiment an ultrasonic measurement system comprising:

an ultrasonic probe for transmitting ultrasonic waves to a tissue containing a target lesion, and receiving echo signals of the ultrasonic waves;

a transmission and reception control circuit for controlling the ultrasonic probe to perform reception of an echo signal that transmits ultrasonic waves and ultrasonic waves to a tissue containing a target lesion;

a processor for generating an ultrasound image containing a target lesion from the echo signal of the ultrasound wave;

a display for displaying the ultrasound image;

after the processor determines that the measurement function is entered, controlling the display to display an auxiliary measurement pattern on the ultrasonic image, wherein the auxiliary measurement pattern has a preset size and a preset shape;

the processor responds to a position adjustment instruction input by a user, adjusts the auxiliary measurement graph to a target position, and obtains an adjusted auxiliary measurement graph, wherein the area where the target focus is located is in the adjusted auxiliary measurement graph;

The display displays the adjusted auxiliary measurement graph;

the processor responds to the received measurement instruction, and measures the long diameter and the short diameter of the target focus according to the adjusted auxiliary measurement pattern and the ultrasonic image;

the display displays the long diameter and the short diameter of the target focus.

According to the ultrasonic image measuring method and the ultrasonic measuring system, the ultrasonic image containing the target focus is obtained and displayed, after the ultrasonic image is determined to enter the measuring mode, the auxiliary measuring pattern for auxiliary measurement is displayed on the ultrasonic image, the position adjusting instruction input by the user is received in real time, the auxiliary measuring pattern is adjusted to the target position in response to the position adjusting instruction input by the user, the adjusted auxiliary measuring pattern is obtained and displayed, the position of the auxiliary measuring pattern is adjusted according to the user instruction, so that the auxiliary measuring pattern contains the area where the target focus is located, the user can quickly and conveniently move the auxiliary measuring pattern, the target focus is measured based on the auxiliary measuring pattern, the long diameter and the short diameter of the target focus are obtained and output, the operation is simple, the position of the target focus can be quickly and accurately determined, the measurement of the target focus is automatically completed, the measuring time is saved, and the measuring result accuracy is high, and the measuring efficiency is high. .

Drawings

Fig. 1 is a schematic structural diagram of an ultrasonic measurement system according to an embodiment of the present application;

fig. 2 is a flow chart of a method for measuring an ultrasound image according to an embodiment of the present application;

FIG. 3 is a flow chart of another method for measuring ultrasound images according to an embodiment of the present application;

FIG. 4A is a schematic diagram of an adjusted auxiliary measurement graph according to an embodiment of the present disclosure;

FIG. 4B is a schematic diagram of a search restriction area according to an embodiment of the present application;

FIG. 4C is a schematic diagram of an initial search area according to an embodiment of the present application;

fig. 4D is a schematic view of a target lesion according to an embodiment of the present application;

fig. 4E is a schematic view of an circumscribed ellipse of a target lesion area according to an embodiment of the present application;

fig. 4F is a schematic labeling diagram of a long diameter and a short diameter of a target lesion according to an embodiment of the present application.

Detailed Description

The present application is described in further detail below with reference to the accompanying drawings by way of specific embodiments. Wherein like elements in different embodiments are numbered alike in association. In the following embodiments, numerous specific details are set forth in order to provide a better understanding of the present application. However, one skilled in the art will readily recognize that some of the features may be omitted, or replaced by other elements, materials, or methods in different situations. In some instances, some operations associated with the present application have not been shown or described in the specification to avoid obscuring the core portions of the present application, and may not be necessary for a person skilled in the art to describe in detail the relevant operations based on the description herein and the general knowledge of one skilled in the art.

Furthermore, the described features, operations, or characteristics of the description may be combined in any suitable manner in various embodiments. Also, various steps or acts in the method descriptions may be interchanged or modified in a manner apparent to those of ordinary skill in the art. Thus, the various orders in the description and drawings are for clarity of description of only certain embodiments, and are not meant to be required orders unless otherwise indicated.

The numbering of the components itself, e.g. "first", "second", etc., is used herein merely to distinguish between the described objects and does not have any sequential or technical meaning. The terms "coupled" and "connected," as used herein, are intended to encompass both direct and indirect coupling (coupling), unless otherwise indicated.

As shown in fig. 1, the ultrasonic measurement system provided in this embodiment may include, but is not limited to: an ultrasound probe 30, transmit and receive control circuitry 40, a beam forming module 50, an IQ demodulation module 60, a processor 20, a display 70, and a memory 80.

The ultrasonic probe 30 is used for transmitting ultrasonic waves and receiving echo signals of the ultrasonic waves. The ultrasonic probe 30 may include a transducer (not shown) composed of a plurality of array elements arranged in an array, the plurality of array elements being arranged in a row to form a linear array, or in a two-dimensional matrix to form an area array, the plurality of array elements may also form a convex array. The array elements are used for transmitting ultrasonic beams according to the excitation electric signals or converting the received ultrasonic beams into electric signals. Each array element can be used for realizing the mutual conversion of the electric pulse signals and ultrasonic beams, thereby realizing the transmission of ultrasonic waves to tissues to be tested (such as organs, tissues, blood vessels, regions of interest in biological tissues such as fetuses and the like in human bodies or animal bodies) and also can be used for receiving the echoes of the ultrasonic waves reflected by the tissues. In performing ultrasonic detection, the transmit control circuit 410 and the receive control circuit 420 may control which elements are used to transmit an ultrasonic beam and which elements are used to receive an ultrasonic beam, or control the element slots are used to transmit an ultrasonic beam or receive an echo of an ultrasonic beam. The array elements participating in ultrasonic wave transmission can be excited by the electric signals at the same time, so that ultrasonic waves are transmitted at the same time; or the array elements participating in the ultrasonic wave transmission can be excited by a plurality of electric signals with a certain time interval, so that the ultrasonic wave with a certain time interval can be continuously transmitted.

The array elements, for example, employ piezoelectric crystals that convert electrical signals into ultrasound signals in accordance with a transmit sequence transmitted by the transmit control circuit 410, which may include one or more scan pulses, one or more reference pulses, one or more push pulses, and/or one or more doppler pulses, depending on the application. Depending on the morphology of the wave, the ultrasonic signal includes a focused wave and a plane wave.

The user selects a proper position and angle by moving the ultrasonic probe 30 to transmit ultrasonic waves to the tissue to be tested and receive echoes of the ultrasonic waves returned by the tissue to be tested, and outputs ultrasonic echo signals, wherein the ultrasonic echo signals are analog electric signals according to a channel formed by taking a receiving array element as a channel, and carry amplitude information, frequency information and time information.

The transmission and reception control circuit 40 is used to control the ultrasonic probe to perform transmission of ultrasonic waves and reception of echo signals of the ultrasonic waves. The transmission and reception control circuit 40 may include a transmission control circuit 410 and a reception control circuit 420, among others.

The transmission control circuit 410 is configured to generate a transmission sequence according to the control of the processor 20, where the transmission sequence is configured to control some or all of the plurality of array elements to transmit ultrasonic waves to the target tissue, and the transmission sequence parameters include an array element position for transmission, the number of array elements, and an ultrasonic beam transmission parameter (such as amplitude, frequency, number of transmissions, transmission interval, transmission angle, waveform, focal position, etc.). In some cases, the transmit control circuit 410 is further configured to phase delay the transmitted beams so that different transmit elements transmit ultrasound waves at different times, so that each transmit ultrasound beam can be focused at a predetermined region of interest. Different modes of operation, such as B-image mode, C-image mode, and D-image mode (doppler mode), the transmit sequence parameters may be different, and after the echo signals are received by the receive control circuit 420 and processed by subsequent modules and corresponding algorithms, a B-image reflecting the anatomical structure of the tissue, a C-image reflecting the anatomical structure and blood flow information, and a D-image reflecting the doppler spectrum image may be generated.

The reception control circuit 420 is configured to receive an ultrasonic echo signal from an ultrasonic probe and process the ultrasonic echo signal. The receive control circuitry 420 may include one or more amplifiers, analog-to-digital converters (ADCs), and the like. The amplifier is used for amplifying the received echo signals after proper gain compensation, and the amplifier is used for sampling the analog echo signals at preset time intervals so as to convert the analog echo signals into digitized signals, and the digitized echo signals still retain amplitude information, frequency information and phase information. The data output by the receive control circuit 420 may be output to the beam forming module 50 for processing or output to the memory 80 for storage.

The beam forming module 50 is in signal connection with the receiving control circuit 420, and is configured to perform corresponding beam forming processes such as delay and weighted summation on the echo signals, and because distances from the ultrasonic receiving points in the tissue to be tested to the receiving array elements are different, channel data of the same receiving point output by different receiving array elements have delay differences, delay processing is required to be performed, phases are aligned, and different channel data of the same receiving point are weighted and summed, so as to obtain ultrasonic image data after beam forming, and ultrasonic image data output by the beam forming module 50 is also referred to as radio frequency data (RF data). The beam forming module 50 outputs the radio frequency data to the IQ demodulation module 60. In some embodiments, the beam forming module 50 may also output the rf data to the memory 80 for buffering or saving, or directly output the rf data to the processor 20 for image processing.

The beam forming module 50 may perform the above-described functions in hardware, firmware, or software, for example, the beam forming module 50 may include a central controller Circuit (CPU), one or more micro-processing chips, or any other electronic component capable of processing input data according to specific logic instructions, which when the beam forming module 50 is implemented in software, may execute instructions stored on tangible and non-transitory computer readable media (e.g., memory) to perform beam forming calculations using any suitable beam forming method.

In some embodiments, the beam forming module 50 is not required.

The IQ demodulation module 60 removes the signal carrier by IQ demodulation, extracts the tissue structure information contained in the signal, and performs filtering to remove noise, and the signal obtained at this time is referred to as a baseband signal (IQ data pair). The IQ demodulation module 60 outputs IQ data pairs to the processor 20 for image processing.

In some embodiments, the IQ demodulation module 60 also outputs IQ data pairs to the memory 80 for buffering or saving so that the processor 20 reads the data from the memory 80 for subsequent image processing.

The IQ demodulation module 60 may also perform the above functions in hardware, firmware or software, and in some embodiments, the IQ demodulation module 60 may also be integrated with the beam forming module 50 in a single chip.

In some embodiments, IQ demodulation module 60 is not required.

The processor 20 is configured to generate an ultrasound image from echo signals of the ultrasound waves. For example, the processor 20 processes the ultrasound data to generate a gray scale image of the signal intensity variations over the scan range that reflects the anatomy inside the tissue, referred to as the B image. The processor 20 may output the B-image to the display 70 for display.

The processor 20 is also configured to be a central controller Circuit (CPU), one or more microprocessors, graphics controller circuits (GPUs), or any other electronic component capable of processing input data according to specific logic instructions, which may perform control of peripheral electronic components, or data reading and/or saving of memory 80, according to the input instructions or predetermined instructions, and may also process the input data by executing programs in the memory 80, such as by performing one or more processing operations on the acquired ultrasound data according to one or more modes of operation, including but not limited to adjusting or defining the form of ultrasound emitted by the ultrasound probe 30, generating various image frames for subsequent display by the display 70, or adjusting or defining the content and form displayed on the display 70, or adjusting one or more image display settings (e.g., ultrasound images, interface components, schematics, etc.) displayed on the display 70.

The acquired ultrasound data may be processed by the processor 20 in real time during scanning or therapy as the echo signals are received, or may be temporarily stored on the memory 80 and processed in near real time in an on-line or off-line operation.

In this embodiment, the processor 20 controls the operations of the transmission control circuit 410 and the reception control circuit 420, for example, controls the transmission control circuit 410 and the reception control circuit 420 to alternately operate or simultaneously operate. The processor 20 may also determine an appropriate operation mode according to a user's selection or a program setting, form a transmission sequence corresponding to the current operation mode, and send the transmission sequence to the transmission control circuit 410, so that the transmission control circuit 410 controls the ultrasound probe 30 to transmit ultrasound waves using the appropriate transmission sequence.

The display 70 may be a touch display screen, a liquid crystal display screen, or the like, or may be an independent display device such as a liquid crystal display, a television, or the like, or may be a display screen on an electronic device such as a mobile phone, a tablet computer, or the like, which is independent of the ultrasonic measurement system 10.

Wherein the memory 80 may be a volatile memory (RAM), such as a random access memory (Random Access Memory); or a nonvolatile Memory (non-volatile Memory), such as a Read Only Memory (ROM), a flash Memory (flash Memory), a Hard Disk (HDD) or a Solid State Drive (SSD); or a combination of the above types of memories and provide instructions and data to the processor.

In some embodiments, memory 80 is not required.

Optionally, the ultrasonic measurement system provided in this embodiment may further include: and a man-machine interaction device.

The man-machine interaction device is used for carrying out man-machine interaction, namely receiving the input and output visual information of a user; the man-machine interaction device may include an input device for detecting input information of a user, and the input information may be, for example, a control instruction for an ultrasonic wave transmission/reception timing, an operation input instruction for editing and annotating an ultrasonic image, or may further include other instruction types. The input device may include at least one of a keyboard, a mouse, a scroll wheel, a trackball, operating buttons, a mobile input device (e.g., a mobile device with a touch display screen, a cell phone, etc.), etc., or a touch screen integrated with the display 70 may be employed; the output of which may employ a display 70. The human-machine interaction means may also comprise an output device such as a printer, for example for printing ultrasound reports.

It will be appreciated that the components included in the ultrasonic measurement system shown in FIG. 1 are illustrative only and may include more or fewer components, as the invention is not limited in this respect.

The processor 20 may be implemented by software, hardware, firmware, or a combination thereof, and may use at least one of a circuit, a single or multiple application specific integrated circuits (Application Specific Integrated Circuit, ASIC), a digital signal processor (Digital Signal Processor, DSP), a digital signal processing device (Digital SignalProcessing Device, DSPD), a programmable logic device (Programmable Logic Device, PLD), a field programmable gate array (Field Programmable Gate Array, FPGA), a Central ProcessingUnit, CPU, a controller, a microcontroller, a microprocessor, or any combination thereof, so that the processor 20 may perform part or all of the steps in the auxiliary display method of an ultrasound image in various embodiments of the present application.

The ultrasonic image measuring method provided by the embodiment of the application is applied to the ultrasonic measuring system. According to the ultrasonic image measuring method, when the focus is measured through the ultrasonic imaging equipment, the auxiliary measuring pattern is displayed on the ultrasonic image in real time, and the position of the auxiliary measuring pattern is adjusted according to the user instruction, so that the auxiliary measuring pattern comprises the area where the target focus is located, the target focus is measured based on the auxiliary measuring pattern, the user can quickly and conveniently move the auxiliary measuring pattern, the operation is simple, the focus position can be quickly and accurately determined, the focus is automatically measured, the measuring time is saved, the measuring result accuracy is high, and the measuring efficiency is high.

The technical scheme of the present application is described in detail below with reference to specific embodiments.

Referring to fig. 2, fig. 2 is a schematic flow chart of an ultrasonic image measurement method provided in an embodiment of the present application, where the method of the present embodiment is performed by an ultrasonic measurement system, the ultrasonic measurement system may be the ultrasonic measurement system shown in fig. 1, the display in the present embodiment may be the display 70 in fig. 1, the processor in the present embodiment may be the processor 20 shown in fig. 1, and the method of the present embodiment may include the following steps:

step 201: an ultrasound image containing the target lesion is acquired and displayed.

The ultrasound image containing the target lesion may be acquired in real time by the ultrasound measurement system, or may be one of a plurality of ultrasound images containing the target lesion acquired by the ultrasound measurement system. The display displays the ultrasound image.

Among other things, the target lesion may include, but is not limited to: tumors, cysts, etc.

Step 202: after determining to enter the measurement mode, an auxiliary measurement pattern is displayed on the ultrasound image.

The processor of the ultrasound measurement system may control the display to display an auxiliary measurement pattern on the ultrasound image after determining to enter the measurement mode.

Wherein entering the measurement mode may be determined by receiving a measurement mode selection instruction entered by a user.

Alternatively, the measurement mode selection instruction may be generated for a received trigger operation at a human-machine interaction device (e.g., a touch screen, a key, etc. input device). For example, a measurement mode selection component may be provided on the touch screen such that upon receipt of a trigger operation at the measurement mode selection component, entry into the measurement mode is determined.

The auxiliary measurement pattern is used for indicating the region range of the region where the target focus is located in the ultrasonic image, the auxiliary measurement pattern is arranged on the ultrasonic image, and the auxiliary measurement pattern has a preset size and a preset shape.

Wherein the preset size is smaller than the size of the ultrasound image.

Optionally, the preset size is a preset size or is determined according to the size of the auxiliary measurement pattern after the history adjustment. If the preset size is a preset size, the displayed auxiliary measurement pattern is the preset size. If the preset size is determined according to the size of the history-adjusted auxiliary measurement pattern, where the history-adjusted auxiliary measurement pattern is size data of the adjusted auxiliary measurement pattern in which lesion measurement has been performed for a period of time, the displayed auxiliary measurement pattern may be the size of the history-adjusted auxiliary measurement pattern, for example, the preset size may be an average size of the history-adjusted auxiliary measurement pattern.

The preset shape may be a circle, a square, a rectangle, or the like, which is not limited in this application. For example, the preset shape is circular, and the circular shape is convenient to adjust, so that the user can conveniently adjust the preset shape.

Alternatively, the initial position of the auxiliary measurement pattern may be a preset position, for example, may be a center position of the ultrasound image, and the initial position of the auxiliary measurement pattern is not limited in this application.

Optionally, the auxiliary measurement pattern may be a preset pattern profile, i.e. the auxiliary measurement pattern is hollow, which is more beneficial for the user to determine whether the area where the target lesion is located is in the auxiliary measurement pattern.

Step 203: and responding to a position adjustment instruction input by a user, adjusting the auxiliary measurement graph to a target position, and obtaining and displaying the adjusted auxiliary measurement graph.

Since the default position of the auxiliary measurement pattern display is typically not in the area of the target lesion, adjustments to the auxiliary measurement pattern are required. The ultrasonic measurement system can receive the position adjustment instruction input by the user in real time, so that the position of the auxiliary measurement pattern is adjusted in real time according to the position adjustment instruction, and the auxiliary measurement pattern is displayed in real time.

It can be understood that in the process of adjusting the position of the auxiliary measurement graph in this step, the position adjustment instruction may be one or more, and if the position adjustment instruction is plural, the position adjustment instruction is adjusted and displayed in real time according to the position adjustment instruction, which is a dynamic process, so as to obtain the adjusted auxiliary measurement graph.

The area where the target focus is located is in the adjusted auxiliary measurement graph.

The position adjustment instruction is used for indicating to adjust the position of the auxiliary measurement graph to the target position.

Alternatively, the position adjustment instruction may be generated by a trigger operation received at the trackball, or may be generated by a trigger operation received at a position adjustment control on the touch screen.

Step 204: and responding to the received measurement instruction, and measuring the long diameter and the short diameter of the target focus according to the adjusted auxiliary measurement pattern and the ultrasonic image.

In the process of adjusting the auxiliary measurement pattern in step 203, if a measurement instruction is received, the adjustment of the auxiliary measurement pattern is stopped, and the current auxiliary measurement pattern is the adjusted auxiliary measurement pattern. The ultrasonic measurement system can determine the position of the target focus on the ultrasonic image according to the position of the adjusted auxiliary measurement pattern on the ultrasonic image, so that the long diameter and the short diameter of the target focus are measured, and the long diameter and the short diameter of the target focus are obtained.

The measurement instruction may be generated by a trigger operation received at a measurement confirmation button, or may be generated by a trigger operation received at a measurement confirmation control on a touch screen.

Step 205: outputting the long diameter and the short diameter of the target focus.

The values of the long diameter and the short diameter of the target focus can be output through the display, and the long diameter and the short diameter of the target focus can be marked on the area where the target focus is located in the ultrasonic image through the display.

According to the method, after the ultrasonic image containing the target focus is determined to enter the measurement mode, the auxiliary measurement pattern for auxiliary measurement is displayed on the ultrasonic image, the position adjustment instruction input by a user is received in real time, the auxiliary measurement pattern is adjusted to the target position in response to the position adjustment instruction input by the user, the adjusted auxiliary measurement pattern is obtained and displayed, the position of the auxiliary measurement pattern is adjusted according to the user instruction, the auxiliary measurement pattern contains the area where the target focus is located, the user can quickly and conveniently move the auxiliary measurement pattern, the target focus is measured based on the auxiliary measurement pattern, the long diameter and the short diameter of the target focus are obtained and output, the operation is simple, the position of the target focus can be quickly and accurately determined, the measurement of the target focus is automatically completed, the measurement time is saved, the accuracy of the measurement result is high, and the measurement efficiency is high.

In some scenarios, the auxiliary measurement pattern may include the area where the target focus is located by adjusting the position of the auxiliary measurement pattern, but in other scenarios, only adjusting the position of the auxiliary measurement pattern may not include the area where the target focus is located due to the limitation of the preset size of the auxiliary measurement pattern, so that the size of the auxiliary measurement pattern may be adjusted, which is described in detail below with reference to the embodiment shown in fig. 3.

Referring to fig. 3, fig. 3 is a flow chart of another method for measuring an ultrasound image according to an embodiment of the present application, and fig. 3 is a flowchart of another method for measuring an ultrasound image according to an embodiment of the present application, where the method of the embodiment further includes the following step 301:

step 301: and responding to a size adjustment instruction input by a user, adjusting the size of the auxiliary measurement graph, and obtaining and displaying the adjusted auxiliary measurement graph.

The ultrasonic measurement system can receive the size adjustment instruction input by the user in real time, so that the size of the auxiliary measurement pattern can be adjusted in real time according to the position adjustment instruction, and the auxiliary measurement pattern can be displayed in real time.

It will be appreciated that in the process of resizing the auxiliary measurement pattern in this step, the resizing instruction may be one or more, and if the resizing instruction is plural, the resizing instruction is adjusted and displayed in real time according to the resizing instruction, which is a dynamic process, so as to obtain the adjusted auxiliary measurement pattern.

The size adjustment instruction is used for indicating to adjust the size of the auxiliary measurement pattern to the target size.

Alternatively, the resizing instruction may be generated by a triggering operation received at the trackball or by a triggering operation received at a resizing control on the touch screen.

It can be understood that the

steps

301 and 203 are not performed sequentially, the

steps

301 and 203 may be performed first, the steps 203 may be performed first, and then the steps 301 may be performed, the

steps

301 and 203 may be performed simultaneously, and the execution sequence of the

steps

301 and 203 is not limited in this application.

If step 301 is performed before step 203 is performed, the adjusted auxiliary measurement pattern in step 301 is an adjusted auxiliary measurement pattern, and the auxiliary measurement pattern in step 203 is an adjusted auxiliary measurement pattern.

If step 203 is performed before step 301 is performed, the adjusted auxiliary measurement pattern in step 203 is an adjusted auxiliary measurement pattern, and the auxiliary measurement pattern in step 301 is an adjusted auxiliary measurement pattern. This is shown in fig. 3.

According to the embodiment, the user can flexibly adjust the position and the size of the auxiliary measurement pattern, the auxiliary measurement pattern is quickly determined, the measurement time is saved, and the measurement efficiency is improved.

In some embodiments, if the input component receiving the position adjustment instruction is different from the input component receiving the size adjustment instruction, for example, the input component receiving the position adjustment instruction is a touch screen, and the input component receiving the size adjustment instruction is a track ball, the ultrasonic measurement system correspondingly adjusts the auxiliary measurement graph according to the received adjustment instruction in real time.

In other embodiments, if the input device receiving the position adjustment command and the size adjustment command is the same, for example, the input device receiving the position adjustment command and the size adjustment command is a track ball, or the components on the track ball and the touch screen can both receive the position adjustment command and the size adjustment command, the input device has at least two states, namely, a first state receiving the position adjustment command and a second state receiving the size adjustment command, respectively, and the input device can switch between the two states. Specific examples are described in detail below.

The position adjustment command is generated by triggering the input member in the first state. The resizing instruction is generated by triggering the input member in the second state. The method provided in this embodiment may further include the following step 300:

Step 300: the input means is switched between a first state and a second state in response to a switching instruction input by a user.

It will be appreciated that step 300 is performed between step 301 and step 203.

In an exemplary embodiment, after the input unit in the first state receives a trigger operation from a user, the position of the auxiliary measurement pattern is adjusted accordingly, and if a switching instruction input by the user is received, the state of the input unit is switched to the second state, and after that, after the input unit receives the trigger operation from the user, the size of the auxiliary measurement pattern after the position is adjusted.

After the input part in the second state receives the triggering operation of the user, the size of the auxiliary measurement graph is correspondingly adjusted, at the moment, if a switching instruction input by the user is received, the state of the input part is switched to the first state, and after the input part receives the triggering operation of the user, the position of the auxiliary measurement graph after the size is adjusted.

It will be appreciated that the switching instructions may be one or more and that the user may iteratively adjust the position and size of the auxiliary measurement pattern.

In this embodiment, the position adjustment instruction and the size adjustment instruction share the same input component to receive the user input and trigger, that is, the user input received on the same input component can generate different instructions in different states, so that the input component of the ultrasonic measurement system is saved, the user operation is facilitated, and the measurement efficiency is improved.

Further, the default state of the input member is the first state. Because in the process of adjusting the auxiliary measurement pattern, a user usually needs to move the auxiliary measurement pattern to the position of the area where the target focus is located before finding out whether the size of the auxiliary measurement pattern needs to be adjusted, the default can be set to adjust the position of the auxiliary measurement pattern first, namely, after the initial auxiliary measurement pattern is displayed, the input part defaults to be in the first state, so that the user can adjust the position of the auxiliary measurement pattern through the input part, the operation of the user is facilitated, the measurement time is saved, and the measurement efficiency is improved.

Further, the input member may be a trackball.

The following description will take the example that the input member may be a track ball and the auxiliary measuring pattern is a circle. When the trackball is in the first state, i.e. the trigger operation currently received by the trackball is used for adjusting the position of the circle, the user adjusts the circle to the corresponding direction by sliding the trackball in each direction. When the track ball is in the second state, namely the trigger operation currently received by the track ball is used for adjusting the radius of the circle under the condition that the circle center position is unchanged, and the user adjusts the size of the radius of the circle by sliding the track ball.

The track ball is an input device on a common ultrasonic measurement system, the existing input device is applied to a measurement function, the user can easily grasp the operation of the input device, and the user can simply and conveniently adjust an auxiliary measurement graph by rotating the track ball.

In some embodiments, step 204 may be implemented by:

step 2041: and responding to the received measurement instruction, and determining the edge of the target focus according to the adjusted auxiliary measurement pattern and the ultrasonic image.

Because the adjusted auxiliary measurement pattern has already outlined the area where the target focus is located, the edge of the target focus can be determined based on the adjusted auxiliary measurement pattern.

The edge of the target focus can be determined in a plurality of different ways, wherein the edge of the target focus can be identified by a traditional image segmentation method or based on a trained neural network model, and the edge delineating range of the target focus is the area where the target focus is located.

Step 2042: and determining the long diameter and the short diameter of the target focus according to the edge of the target focus.

The edge of the target lesion is determined, and the long diameter and the short diameter of the target lesion can be measured.

Alternatively, the long diameter and the short diameter of the target focus can be measured by the external ellipse of the edge of the target focus.

According to the method, the position of the target focus in the ultrasonic image can be preliminarily determined through the adjusted auxiliary measurement pattern, so that the edge of the target focus can be rapidly and accurately determined according to the auxiliary measurement pattern, the target focus is rapidly measured based on the edge of the target focus, the long diameter and the short diameter of the target focus are obtained, and the measurement efficiency is improved.

In some embodiments, in step 2041, the energy function of the gray value change is used to perform an extended search process, so as to obtain the area where the target focus is located, and thus the edge of the target focus is obtained. Specific examples are described in detail below.

On the basis of the above embodiment, step 2041 may include the following steps 20411 to 20413:

step 20411: and determining a search limiting area and an initial search area according to the adjusted auxiliary measurement graph.

The search limiting area is used for limiting the range of the expanded search processing, and the size of the search limiting area is larger than that of the adjusted auxiliary measurement graph. The search limited area may be square, rectangular, circular, or the like in shape.

The initial search area is an initial area range in the expanded search process, and the size of the initial search area is smaller than the adjusted auxiliary measurement graph. The shape of the initial search area may be circular or square, etc.

Step 20412: and performing expansion search for the initial search area for preset times in the search limiting area based on an energy function of gray value change of pixel points in the ultrasonic image, and obtaining the area of the target focus according to the result of the expansion search.

Step 20412 is an iterative process, with an expanded search performed for each iteration. After the energy function in each expansion search is updated, the search area is also expanded, and when the expansion search is performed for a preset number of times, the expansion is stopped.

The preset times may be preset integers greater than 0.

Alternatively, the initial value of the energy function for measuring the gray value change may be a preset energy initial value.

Step 20413: and extracting the edge of the area of the target focus to obtain the edge of the target focus.

In this embodiment, in the process of the extended search processing, a search restriction area is determined according to the adjusted auxiliary measurement pattern, and the extended search processing is performed in the search restriction area. An initial search area smaller than the size of the auxiliary measurement pattern may be determined as an initial area expanded in the search restriction area, and an expanded search process may be performed based on an energy function of a change in gray value of the pixel point, thereby gradually expanding the initial search area to an area where the target lesion is located. And extracting the edge of the area where the target focus is located by using an edge extraction method, and measuring the long diameter and the short diameter of the target focus according to the edge of the area where the target focus is located.

According to the method, the search limiting area and the initial search area are determined through the adjusted auxiliary measurement graph, the initial search area is subjected to expansion search for preset times based on the energy function of gray value change of the pixel points in the ultrasonic image, the area of the target focus is obtained according to the result of the expansion search, the edge of the area of the target focus is extracted, the edge of the target focus is obtained, the long diameter and the short diameter of the target focus are measured based on the edge of the target focus, and therefore the expansion search operation can be performed according to the energy function of gray value change of the pixel points based on the auxiliary measurement graph, the area of the target focus is obtained quickly, accuracy is high, and the measurement of the long diameter and the short diameter of the target focus is quick, and results are accurate.

Further, the image quality of the ultrasound image often affects the processing time and accuracy of the extended search operation, and therefore, before the extended search operation is performed, the pixel points of the search limited area may be first subjected to noise reduction processing, so as to obtain a processed ultrasound image, and the extended search operation is performed based on the processed ultrasound image, which will be described in detail below with specific embodiments.

In this embodiment, the following steps may be further performed after step 20411:

and carrying out noise reduction treatment on the pixel points in the search limited area in the ultrasonic image to obtain a treated ultrasonic image.

Accordingly, the ultrasound image in step 20412 is a processed ultrasound image. I.e. step 20412 may be: and performing expansion search for the initial search area for preset times in the search limiting area based on the energy function of gray value change of the pixel points in the processed ultrasonic image, and obtaining the area of the target focus according to the result of the expansion search.

The noise reduction processing may be a smoothing processing, for example, a gaussian smoothing processing.

In this embodiment, before the extended search operation, the noise reduction processing is performed on the pixel points in the search limited area, so that the processing procedure of the extended search operation is faster and the accuracy is higher, thereby improving the accuracy of measurement and improving the measurement efficiency.

Further, the center of the search area coincides with the center of the adjusted auxiliary measurement pattern.

Further, the center of the initial search area coincides with the center of the adjusted auxiliary measurement pattern.

Further, the preset shape is a circle, the adjusted auxiliary measurement graph is a circle with a radius R, R is a number larger than 0, and the search limiting area is a square with a side length larger than R; the initial search area is a circle having a radius less than R.

In some embodiments, step 205 may be implemented by:

displaying the edge, the long diameter and the short diameter of the target focus on the target focus of the ultrasonic image, and displaying the length of the long diameter and the short diameter of the target focus.

In the embodiment, the edge, the long diameter and the short diameter of the target focus are marked and displayed on the ultrasonic image, so that an operator can check the edge, the long diameter and the short diameter of the target focus, and the accuracy of the edge, the long diameter and the short diameter of the target focus which are automatically identified can be rapidly judged.

In some scenarios, other data of the target lesion may be further obtained from the edge of the target lesion obtained in step 204, as will be described in detail below with respect to specific embodiments.

Further, the method comprises the following steps:

and obtaining and displaying the diameter-length ratio of the target focus according to the long diameter and the short diameter of the target focus.

The diameter-length ratio may be the ratio of the long diameter to the short diameter, or the ratio of the short diameter to the long diameter.

Further, the method comprises the following steps:

and obtaining and displaying the perimeter of the target focus according to the edge of the target focus and the pixel points covered by the edge of the target focus in the ultrasonic image.

Further, the method comprises the following steps:

And obtaining and displaying the area of the target focus according to the edge of the target focus and the covered pixel points of the target focus in the ultrasonic image.

Further, the method comprises the following steps:

and obtaining and displaying the average gray value of the target focus according to the gray value of the covered pixel point of the target focus in the ultrasonic image.

The following describes a specific implementation procedure of the ultrasonic image measurement method provided in the embodiment of the present application by taking the auxiliary measurement pattern as a circle and the input device as a track ball as an example. This example is used to illustrate one step flow of the above-described ultrasound image measurement method, and is not meant to limit the present application.

This example includes the following steps a-o:

step a: the operator selects an ultrasound image containing the target lesion from the acquired plurality of ultrasound images, and the ultrasound measurement system displays the ultrasound image.

Step a corresponds to step 201.

Step b: and receiving clicking operation of a user at a measurement function control of the touch screen, and enabling the ultrasonic measurement system to enter a measurement mode.

Step c: a circle is displayed at the center of the ultrasound image.

Step b and step c correspond to step 202 described above.

Step d: and receiving sliding operation of a user at the track ball, and moving the circular position according to the sliding operation to obtain the circular position after the position is adjusted.

Step d corresponds to step 203.

Step e: and receiving clicking operation of a user at the state switching key to switch the state of the track ball.

Step e corresponds to step 300.

Step f: and receiving sliding operation of a user at the track ball, and adjusting the radius of the circle after the position is adjusted according to the sliding operation to obtain the adjusted circle.

Step f corresponds to step 301.

Step g: and receiving clicking operation of a user at the measurement button, and starting measurement according to the adjusted circular and ultrasonic images.

Referring to fig. 4A, fig. 4A is a schematic diagram of an adjusted auxiliary measurement pattern provided in the embodiment of the present application, where the adjusted auxiliary measurement pattern is a circular area 401 with a radius R. The ultrasound image is not shown in the schematic diagram of the present embodiment.

Step h: from the circular region 401, a search restriction region is determined.

Referring to fig. 4B, fig. 4B is a schematic diagram of a search restriction area according to an embodiment of the present application. After receiving the measurement instruction, a search restriction area is determined according to the circular area 401, the search restriction area is a square area with b times of R as a side length, b is greater than 0, for example, b=4, and the center of the square area 402 coincides with the center of the circular area 401.

Step i: the ultrasound image within the square region 402 is smoothed.

Step j: from the circular region 401, an initial search region is determined.

Referring to fig. 4C, fig. 4C is a schematic diagram of an initial search area according to an embodiment of the present application. According to the circular area 401 (not shown in fig. 4C), an initial search area is determined, the initial search area being a circular area 403 having a radius of a times R, a being greater than 0 and less than 1, for example, a=0.5, and the circular area 403 and the circular area 401 being concentric circles.

Step h and step j correspond to step 20411 described above.

Step k: based on the energy function of gray value change of pixel points in the ultrasonic image, performing expansion search for the circular area 403 for preset times in the circular area 401, and obtaining the area of the target focus according to the result of the expansion search.

Step k corresponds to step 20412.

Step l: and extracting the edge of the result of the expanded search by an edge extraction method.

Referring to fig. 4D, fig. 4D is a schematic view of a target lesion area provided in the embodiment of the present application, and after the above steps, the target lesion area 404, that is, the edge of the target lesion, is obtained.

Step l corresponds to step 20413.

Step m: an circumscribed ellipse of the region 404 of the target lesion is acquired.

Referring to fig. 4E, fig. 4E is a schematic view of an circumscribed ellipse of a target lesion area according to an embodiment of the present application. Based on the edge of the target lesion, an circumscribed ellipse 405 of the region of the target lesion is obtained.

Step n: from the ellipse 405, the long and short diameters of the target lesion are measured and displayed within the area of the target lesion.

Referring to fig. 4F, fig. 4F is a schematic illustration of labeling long diameters and short diameters of a target lesion according to an embodiment of the present application, wherein a dashed line 406 is a labeled long diameter, and a dashed line 407 is a labeled short diameter.

Step o: the perimeter, area and average gray scale of the target lesion are determined and displayed.

An ultrasonic measurement system provided by the present application is described below.

The ultrasonic measurement system provided in this embodiment includes:

an ultrasonic probe for transmitting ultrasonic waves to a tissue containing a target lesion and receiving echo signals of the ultrasonic waves;

a transmission and reception control circuit for controlling the ultrasonic probe to perform reception of an ultrasonic wave and an echo signal of the ultrasonic wave transmitted to a tissue containing a target lesion;

A display for displaying the ultrasound image;

after the processor determines to enter a measuring function, controlling the display to display an auxiliary measuring pattern on the ultrasonic image, wherein the auxiliary measuring pattern has a preset size and a preset shape;

the display displays the adjusted auxiliary measurement graph;

the display displays the long and short diameters of the target lesion.

In some embodiments, the processor is further to:

and responding to a size adjustment instruction input by a user, adjusting the size of the auxiliary measurement graph, and obtaining and displaying the adjusted auxiliary measurement graph.

In some embodiments, the ultrasound measurement system further comprises: an input member.

The position adjustment instruction is generated by triggering the input means in the first state; the resizing instruction is generated by triggering the input member in the second state; the processor is further configured to:

The input means is switched between a first state and a second state in response to a switching instruction input by a user.

In some embodiments, the default state of the input member is the first state; the input member is a trackball.

In some scenarios, if the input device is a trackball, the user may need to switch the adjustment mode between position and size to adjust the auxiliary measurement pattern to the appropriate position and size, and therefore, when switching the state of the trackball, the user needs to switch in a fast and easy-to-operate manner. Specific examples are described in detail below.

Further, based on the above embodiment, the ultrasonic measurement system further includes:

the switching key is used for generating a switching instruction when triggered and is arranged beside the track ball;

and the measurement confirmation key is used for generating a measurement instruction when triggered.

In this embodiment, the track ball includes two states, which can generate a position adjustment instruction and a size adjustment instruction, and the switching key for controlling the track ball to switch in the two states is disposed beside the track ball, so that the user operation is facilitated, and the measurement efficiency is improved.

Further, a measurement confirmation key may also be provided beside the trackball.

According to the embodiment, the measurement confirmation key is arranged beside the track ball, so that the user operation is facilitated, and the measurement efficiency is improved.

In some embodiments, the processor is specifically for:

a trigger operation is received at a measurement mode selection component that determines to enter a measurement mode.

In some embodiments, the preset size is a preset size or is determined based on the size of the historically adjusted auxiliary measurement pattern.

In some embodiments, the processor measures a long diameter and a short diameter of the target lesion from the adjusted auxiliary measurement pattern and the ultrasound image, comprising:

the processor determines the edge of the target focus according to the adjusted auxiliary measurement graph and the ultrasonic image;

the processor determines a long diameter and a short diameter of the target lesion according to the edge of the target lesion.

In some embodiments, the processor determines an edge of the target lesion from the adjusted auxiliary measurement pattern and the ultrasound image, comprising:

the processor determines a search limit area and an initial search area according to the adjusted auxiliary measurement pattern, wherein the size of the search limit area is larger than that of the adjusted auxiliary measurement pattern, and the size of the initial search area is smaller than that of the adjusted auxiliary measurement pattern;

The processor performs expansion search for the initial search area for preset times in the search limiting area based on an energy function of gray value change of pixel points in the ultrasonic image, and obtains an area of a target focus according to the result of the expansion search;

the processor extracts the edge of the area of the target focus to obtain the edge of the target focus.

In some embodiments, the processor is further to:

noise reduction treatment is carried out on the pixel points in the search limiting area in the ultrasonic image, and a treated ultrasonic image is obtained;

the processor performs an extended search for a preset number of times on an initial search area in a search limit area based on an energy function of gray value variation of pixel points in an ultrasonic image, and obtains an area of a target focus according to a result of the extended search, including:

the processor performs expansion search for the initial search area for preset times in the search limiting area based on the energy function of gray value change of pixel points in the processed ultrasonic image, and obtains the area of the target focus according to the result of the expansion search.

In some embodiments, the center of the search restriction area coincides with the center of the adjusted auxiliary measurement pattern; the center of the initial search area coincides with the center of the adjusted auxiliary measurement pattern.

In some embodiments, the adjusted auxiliary measurement pattern is a circle with a radius R, R being a number greater than 0, and the search restriction area is a square with a side length greater than R; the initial search area is a circle having a radius less than R.

In some embodiments, the display outputs a long diameter and a short diameter of the target lesion, comprising:

the display displays the edge, long diameter and short diameter of the target lesion on the target lesion of the ultrasonic image, and displays the length of the long diameter and short diameter of the target lesion.

In some embodiments, the processor is further to: obtaining and displaying the diameter-length ratio of the target focus according to the long diameter and the short diameter of the target focus;

in some embodiments, the processor is further to: obtaining and displaying the perimeter of the target focus according to the edge of the target focus and the pixel point covered by the edge of the target focus in the ultrasonic image;

in some embodiments, the processor is further to: obtaining and displaying the area of the target focus according to the edge of the target focus and the covered pixel points of the target focus in the ultrasonic image;

in some embodiments, the processor is further to: and obtaining and displaying the average gray value of the target focus according to the gray value of the covered pixel point of the target focus in the ultrasonic image.

The implementation principle and technical effects of the ultrasonic measurement system of the present embodiment are similar to those of the above-mentioned ultrasonic image measurement method, and are not repeated here.

The embodiment of the application provides a computer readable storage medium, on which a program is stored, the program being executable by a processor to implement a method for measuring an ultrasound image as described above.

Those skilled in the art will appreciate that all or part of the functions of the various methods in the above embodiments may be implemented by hardware, or may be implemented by a computer program. When all or part of the functions in the above embodiments are implemented by means of a computer program, the program may be stored in a computer readable storage medium, and the storage medium may include: read-only memory, random access memory, magnetic disk, optical disk, hard disk, etc., and the program is executed by a computer to realize the above-mentioned functions. For example, the program is stored in the memory of the device, and when the program in the memory is executed by the processor, all or part of the functions described above can be realized. In addition, when all or part of the functions in the above embodiments are implemented by means of a computer program, the program may be stored in a storage medium such as a server, another computer, a magnetic disk, an optical disk, a flash disk, or a removable hard disk, and the program in the above embodiments may be implemented by downloading or copying the program into a memory of a local device or updating a version of a system of the local device, and when the program in the memory is executed by a processor.

The foregoing description of specific examples has been presented only to aid in the understanding of the present application and is not intended to limit the present application. Several simple deductions, modifications or substitutions may also be made by the person skilled in the art to which the present application pertains, according to the idea of the present application.

Claims

1. A method of measuring an ultrasound image, comprising:

acquiring and displaying an ultrasonic image containing a target focus;

outputting the long diameter and the short diameter of the target focus.

2. The method of claim 1, wherein the method further comprises:

3. The method of claim 2, wherein the position adjustment command is generated by triggering an input element in a first state; the resizing instruction is generated by triggering the input member in a second state; the method further comprises the steps of:

the input means is switched between the first state and the second state in response to a switching instruction input by a user.

4. A method as claimed in claim 3, wherein the default state of the input member is the first state; the input member is a trackball.

5. The method of any of claims 1-4, wherein the determining to enter the measurement mode comprises:

6. The method of any of claims 1-4, wherein the predetermined size is a predetermined size or is determined based on a size of the historically adjusted auxiliary measurement pattern.

7. The method of claim 1, wherein said measuring the long and short diameters of the target lesion from the adjusted auxiliary measurement pattern and the ultrasound image comprises:

Determining the edge of the target focus according to the adjusted auxiliary measurement graph and the ultrasonic image;

and determining the long diameter and the short diameter of the target focus according to the edge of the target focus.

8. The method of claim 7, wherein said determining an edge of the target lesion from the adjusted auxiliary measurement pattern and the ultrasound image comprises:

determining a search limit area and an initial search area according to the adjusted auxiliary measurement pattern, wherein the size of the search limit area is larger than that of the adjusted auxiliary measurement pattern, and the size of the initial search area is smaller than that of the adjusted auxiliary measurement pattern;

based on an energy function of gray value change of pixel points in the ultrasonic image, performing expansion search for the initial search area for preset times in the search limiting area, and obtaining the area of the target focus according to the result of the expansion search;

and extracting the edge of the area of the target focus to obtain the edge of the target focus.

9. The method of claim 8, wherein after determining a search restriction area based on the adjusted auxiliary measurement profile, further comprising:

Noise reduction processing is carried out on the pixel points in the search limiting area in the ultrasonic image, so that a processed ultrasonic image is obtained;

the energy function based on the gray value change of the pixel points in the ultrasonic image performs the expansion search for the initial search area for a preset number of times in the search limiting area, and obtains the area of the target focus according to the result of the expansion search, including:

and performing expansion search for the initial search area for preset times in the search limiting area based on an energy function of gray value change of pixel points in the processed ultrasonic image, and obtaining the area of the target focus according to the result of the expansion search.

10. The method of claim 8, wherein a center of the search restriction area coincides with a center of the adjusted auxiliary measurement pattern; the center of the initial search area coincides with the center of the adjusted auxiliary measurement pattern.

11. The method of claim 8, wherein the adjusted auxiliary measurement pattern is a circle having a radius R, R being a number greater than 0, and the search restriction area is a square having a side length greater than R; the initial search area is a circle with a radius smaller than R.

12. The method of any one of claims 7-11, wherein said outputting the long and short diameters of the target lesion comprises:

13. The method according to any one of claims 7-11, further comprising at least one of the following steps:

obtaining and displaying the diameter-length ratio of the target focus according to the long diameter and the short diameter of the target focus;

obtaining and displaying the perimeter of the target focus according to the edge of the target focus and the pixel points covered by the edge of the target focus in the ultrasonic image;

obtaining and displaying the area of the target focus according to the edge of the target focus and the covered pixel points of the target focus in the ultrasonic image;

14. An ultrasonic measurement system, comprising:

a display for displaying the ultrasound image;

the display displays the adjusted auxiliary measurement graph;

15. The system of claim 14, wherein the processor is further configured to:

And responding to a size adjustment instruction input by a user, adjusting the size of the auxiliary measurement graph, and obtaining the adjusted auxiliary measurement graph.

16. The system of claim 15, wherein the system further comprises:

an input means for generating the position adjustment instruction by triggering in a first state; the resizing instruction generated by triggering in a second state;

the processor is further configured to switch the input element between the first state and the second state in response to a switch instruction entered by a user.

17. The system of claim 16, wherein the input member is a trackball and the default state of the input member is the first state.

18. The system of claim 17, wherein the system further comprises:

the switching key is used for generating the switching instruction when triggered and is arranged beside the track ball;

and the measurement confirmation key is used for generating the measurement instruction when triggered.

19. The system of claim 14, wherein the processor determining to enter a measurement mode comprises:

the processor determines to enter a measurement mode after receiving a trigger operation at a measurement mode selection component.

20. The system of any one of claims 14-19, wherein the processor, in response to the received measurement instructions, measures a long diameter and a short diameter of the target lesion from the adjusted auxiliary measurement pattern and the ultrasound image, comprising:

the processor responds to the received measurement instruction, and determines the edge of the target focus according to the adjusted auxiliary measurement pattern and the ultrasonic image;

the processor determines a long diameter and a short diameter of the target focus according to the edge of the target focus.

21. The system of claim 20, wherein the processor, in response to the received measurement instructions, determining an edge of the target lesion from the adjusted auxiliary measurement pattern and the ultrasound image comprises:

the processor responds to the received measurement instruction, and determines a search limiting area and an initial search area according to the adjusted auxiliary measurement pattern, wherein the size of the search limiting area is larger than the adjusted auxiliary measurement pattern, and the size of the initial search area is smaller than the adjusted auxiliary measurement pattern;

the processor performs expansion search for the initial search area for preset times in the search limit area based on an energy function of gray value change of pixel points in the ultrasonic image, and obtains the area of the target focus according to the result of expansion search;

The processor extracts edges of the region of the target lesion to obtain edges of the target lesion.