Ultrasound imaging method, apparatus, computer device, medium, and computer product

Abstract

The application relates to an ultrasonic imaging method, device, computer equipment, medium and computer product. The method comprises the following steps: acquiring an ultrasonic echo signal of a target region, the ultrasonic echo signal being a reflected echo signal after an ultrasonic wave signal of a target transmission frequency is sent to the target region; presetting a tracer substance in the target region, determining a target imaging mode corresponding to the target region according to a size relationship between the target transmission frequency and a preset resonance frequency range of the tracer substance; and performing signal acquisition on the ultrasonic echo signal according to the target imaging mode within a preset time length, obtaining a plurality of target tracer signals, performing positioning tracking on each target tracer signal through the target imaging mode, and obtaining a target ultrasonic image. The method can obtain a high-resolution ultrasonic image, improve the accuracy and precision of the ultrasonic image, and reduce the detection cost while improving the detection efficiency when applied to the medical detection field.

Description

Technical Field

[0001] This application relates to the field of ultrasound imaging technology, and in particular to an ultrasound imaging method, apparatus, computer equipment, medium, and computer product. Background Technology

[0002] Ultrasound imaging technology is an image processing technology based on the principle of ultrasound. By using ultrasound imaging technology to detect a target object, ultrasound images can be obtained to show the internal structure and morphology of the target object, such as the shape, size and location of organs or tissues.

[0003] Currently, in the application of ultrasound imaging technology in medical testing, the ultrasound imaging process involves a high-frequency ultrasound probe sending ultrasound waves towards the target object. The probe then collects the reflected ultrasound signals from the target object, analyzes the collected reflected ultrasound signals, and obtains a visual ultrasound image. However, existing ultrasound imaging methods produce ultrasound images with low resolution, and the accuracy of the measurement results is not high when the target area is small or the location is concealed. Summary of the Invention

[0004] Therefore, it is necessary to provide an ultrasound imaging method, device, computer equipment, medium, and computer product to address the aforementioned technical problems.

[0005] In a first aspect, this application provides an ultrasound imaging method, comprising:

[0006] Acquire the ultrasonic echo signal of the target area. The ultrasonic echo signal is the echo signal reflected after an ultrasonic signal of the target emission frequency is sent to the target area.

[0007] A tracer material is pre-set in the target area, and the target imaging mode corresponding to the target area is determined according to the relationship between the target emission frequency and the pre-set resonant frequency range of the tracer material.

[0008] Within a preset time period, the ultrasonic echo signal is acquired according to the target imaging mode to obtain multiple target tracer signals. The target tracer signals are then processed through the target imaging mode to obtain the target ultrasonic image.

[0009] In one embodiment, the target imaging mode includes a two-dimensional fundamental wave imaging mode and a contrast imaging mode. The target imaging mode corresponding to the target region is determined based on the relationship between the target emission frequency and the preset resonant frequency range of the tracer material, including:

[0010] When the target transmission frequency is not within the preset resonant frequency range, the target imaging mode is determined to be the two-dimensional fundamental wave imaging mode. The two-dimensional fundamental wave imaging mode performs ultrasonic imaging by acquiring the two-dimensional fundamental wave signal in the ultrasonic echo signal.

[0011] When the target transmission frequency is within the preset resonant frequency range, the target imaging mode is determined to be the contrast imaging mode, wherein the contrast imaging mode performs ultrasound imaging by acquiring the contrast signal in the ultrasound echo signal.

[0012] In one embodiment, the two-dimensional fundamental wave signal includes a tissue signal and a first tracer signal. The target tracer signal is obtained by acquiring the ultrasound echo signal according to the target imaging pattern, including:

[0013] In the two-dimensional fundamental wave imaging mode, the ultrasonic echo signal is acquired according to the two-dimensional fundamental wave imaging mode to obtain the two-dimensional fundamental wave signal;

[0014] The two-dimensional fundamental wave signal is subjected to spatiotemporal filtering and frequency filtering to remove tissue signals, thereby obtaining the first tracer signal.

[0015] In one embodiment, within a preset time period, ultrasonic echo signals are acquired according to the target imaging mode to obtain multiple target tracking signals, including:

[0016] Within a preset time period, several initial tracer signals are obtained based on the movement of the tracer material in the target area;

[0017] Acquire the state parameters of each initial tracer signal, including position parameters, orientation parameters, and velocity parameters;

[0018] When the state parameters meet the preset parameter conditions, multiple target tracking signals are obtained.

[0019] In one embodiment, before acquiring the ultrasonic echo signal of the target region, the process includes:

[0020] Acquire the first ultrasonic echo signal of the target object. The first ultrasonic echo signal is the echo signal reflected after an ultrasonic signal is sent to the target object.

[0021] A first ultrasound image is obtained based on the first ultrasound echo signal. If a region of interest exists in the first ultrasound image, the region of interest is taken as the target region.

[0022] In one embodiment, the target tracking signal is processed using a target imaging mode to obtain a target ultrasound image, including:

[0023] Acquire a first preprocessing parameter for controlling the number and intensity of bright spots in the ultrasound image, and a second preprocessing parameter for compensating for the motion of the target object;

[0024] Based on the first and second preprocessing parameters, the tracer signals of each target are located and tracked to obtain an initial ultrasound image;

[0025] Obtain image processing parameters, including image resolution, image contrast, image filtering, and image enhancement;

[0026] The initial ultrasound image is processed according to the image processing parameters to obtain the target ultrasound image.

[0027] Secondly, this application also provides an ultrasound imaging device, comprising:

[0028] The receiving module is used to acquire the ultrasonic echo signal of the target area. The ultrasonic echo signal is the echo signal reflected after an ultrasonic signal of the target transmission frequency is sent to the target area, and to determine the target transmission frequency of the ultrasonic signal.

[0029] The imaging mode determination module is used to pre-set tracer material in the target area and determine the target imaging mode corresponding to the target area based on the relationship between the target emission frequency and the pre-set resonant frequency range of the tracer material.

[0030] The imaging module is used to acquire ultrasonic echo signals according to the target imaging mode within a preset time period, obtain multiple target tracer signals, locate and track each target tracer signal through the target imaging mode, and obtain the target ultrasonic image.

[0031] Thirdly, this application also provides a computer device, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to perform the following steps:

[0032] Acquire the ultrasonic echo signal of the target area. The ultrasonic echo signal is the echo signal reflected after an ultrasonic signal of the target emission frequency is sent to the target area.

[0033] A tracer material is pre-set in the target area, and the target imaging mode corresponding to the target area is determined according to the relationship between the target emission frequency and the pre-set resonant frequency range of the tracer material.

[0034] Within a preset time period, the ultrasonic echo signal is acquired according to the target imaging mode to obtain multiple target tracking signals. The target tracking signals are then located and tracked using the target imaging mode to obtain the target ultrasonic image.

[0035] Fourthly, this application also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, performs the following steps:

[0036] Acquire the ultrasonic echo signal of the target area. The ultrasonic echo signal is the echo signal reflected after an ultrasonic signal of the target emission frequency is sent to the target area.

[0037] A tracer material is pre-set in the target area, and the target imaging mode corresponding to the target area is determined according to the relationship between the target emission frequency and the pre-set resonant frequency range of the tracer material.

[0038] Within a preset time period, the ultrasonic echo signal is acquired according to the target imaging mode to obtain multiple target tracking signals. The target tracking signals are then located and tracked using the target imaging mode to obtain the target ultrasonic image.

[0039] Fifthly, this application also provides a computer program product, including a computer program that, when executed by a processor, performs the following steps:

[0040] Acquire the ultrasonic echo signal of the target area. The ultrasonic echo signal is the echo signal reflected after an ultrasonic signal of the target emission frequency is sent to the target area.

[0041] A tracer material is pre-set in the target area, and the target imaging mode corresponding to the target area is determined according to the relationship between the target emission frequency and the pre-set resonant frequency range of the tracer material.

[0042] Within a preset time period, the ultrasonic echo signal is acquired according to the target imaging mode to obtain multiple target tracking signals. The target tracking signals are then located and tracked using the target imaging mode to obtain the target ultrasonic image.

[0043] The aforementioned ultrasound imaging method, apparatus, computer equipment, medium, and computer product acquire ultrasound echo signals from a target area. These echo signals are the reflected signals after an ultrasound signal at a target emission frequency is sent to the target area. A tracer substance is preset in the target area. Based on the relationship between the target emission frequency and the preset resonant frequency range of the tracer substance, a target imaging mode corresponding to the target area is determined. Within a preset time period, the ultrasound echo signals are acquired according to the target imaging mode, resulting in multiple target tracer signals. Each target tracer signal is located and tracked using the target imaging mode to obtain a target ultrasound image. This method determines the working mode during ultrasound imaging based on the target emission frequency corresponding to the ultrasound signal, enabling high-resolution ultrasound images to be obtained at any target emission frequency. Based on the tracer substance, it can improve the accuracy and precision of ultrasound images for very small target areas or key areas with concealed locations, such as microvascular networks. Furthermore, this method can be applied to the field of medical testing, reducing testing costs while improving testing efficiency. Attached Figure Description

[0044] To more clearly illustrate the technical solutions in the embodiments or related technologies of this application, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0045] Figure 1 This is a diagram illustrating the application environment of an ultrasound imaging method in one embodiment;

[0046] Figure 2 This is a flowchart illustrating an ultrasound imaging method in one embodiment;

[0047] Figure 3 This is a schematic diagram of the density of the tracer substance in one embodiment;

[0048] Figure 4 This is a schematic diagram of a data analysis page in one embodiment;

[0049] Figure 5 This is a flowchart illustrating the ultrasound imaging method in another embodiment;

[0050] Figure 6 This is a structural block diagram of an ultrasound imaging device in one embodiment;

[0051] Figure 7 This is a schematic diagram of an ultrasound image display page in one embodiment;

[0052] Figure 8 This is a flowchart illustrating the workflow of a two-dimensional fundamental ultrasound imaging mode in one embodiment.

[0053] Figure 9 This is a schematic diagram of the ultrasound image mode control page in one embodiment;

[0054] Figure 10 This is a schematic diagram of a data acquisition page in one embodiment;

[0055] Figure 11 This is a schematic diagram of the data acquisition progress page in one embodiment;

[0056] Figure 12 This is a schematic diagram of a data acquisition control page in one embodiment;

[0057] Figure 13 This is a schematic diagram of a page where the region of interest is determined in one embodiment;

[0058] Figure 14 This is a flowchart illustrating the workflow of a contrast-enhanced ultrasound imaging mode in one embodiment.

[0059] Figure 15This is a schematic diagram of the data acquisition page in another embodiment;

[0060] Figure 16 This is a structural block diagram of an ultrasound imaging device in one embodiment;

[0061] Figure 17 This is an internal structure diagram of a computer device as a terminal in one embodiment;

[0062] Figure 18 This is an internal structure diagram of a computer device that is a server in one embodiment. Detailed Implementation

[0063] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0064] The ultrasound imaging method provided in this application embodiment can be applied to, for example... Figure 1 In the application environment shown, terminal 102 communicates with server 104 via a network. A data storage system can store the data that server 104 needs to process. The data storage system can be integrated onto server 104 or placed in the cloud or on other network servers. The process involves acquiring ultrasonic echo signals from the target area. Ultrasonic echo signals are the echo signals reflected after an ultrasonic signal of the target emission frequency is sent to the target area. A tracer material is preset in the target area. Based on the relationship between the target emission frequency and the preset resonant frequency range of the tracer material, the target imaging mode corresponding to the target area is determined. Within a preset time period, the ultrasonic echo signals are collected according to the target imaging mode to obtain multiple target tracer signals. Each target tracer signal is located and tracked using the target imaging mode to obtain a target ultrasonic image. Terminal 102 can be, but is not limited to, various personal computers, laptops, smartphones, tablets, IoT devices, and portable wearable devices. IoT devices can be smart speakers, smart TVs, smart air conditioners, smart vehicle devices, etc. Portable wearable devices can be smartwatches, smart bracelets, head-mounted devices, etc. Server 104 can be implemented using a standalone server or a server cluster composed of multiple servers.

[0065] In one exemplary embodiment, such as Figure 2 As shown, an ultrasound imaging method is provided, which is applied to... Figure 1 Taking terminal 102 as an example, the explanation includes the following steps 202 to 206. Wherein:

[0066] Step 202: Obtain the ultrasonic echo signal of the target area. The ultrasonic echo signal is the echo signal reflected after an ultrasonic signal of the target transmission frequency is sent to the target area.

[0067] For example, taking the application of this method in an ultrasound imaging device as an example, the ultrasound imaging device includes a probe, a main unit, an operation panel, a touch screen, and a display screen. Taking a region in the target object with lesion characteristics as the target region, the probe in the ultrasound imaging device sends an ultrasonic signal of the target emission frequency to the target region and receives the ultrasonic echo signal. Specifically, in different tissue structures within the target region, or at the interface between tissue structures of different types and densities, the ultrasonic signal is reflected, and the reflected echo signal is received by the probe in the ultrasound imaging device.

[0068] Step 204: Pre-set tracer material in the target area, and determine the target imaging mode corresponding to the target area based on the relationship between the target emission frequency and the preset resonant frequency range of the tracer material.

[0069] The tracer material is used to enhance ultrasound images; it can be a tiny gas sac, a microbubble, or other visible material. The resonant frequency is the frequency at which the material oscillates most strongly in the ultrasonic field generated by the ultrasound signal.

[0070] For example, a preset resonant frequency range is determined based on the resonant frequency of different tracer substances. The tracer substances are preset in the microvessels of the target area. The tracer substances can move in the microvessels, and the ultrasonic signal is also reflected at the position of the tracer substances. The echo signal reflected by the tracer substances is used as the ultrasonic echo signal corresponding to the tracer substances.

[0071] When the target emission frequency of the ultrasonic signal is within the preset resonant frequency range, the ultrasonic signal and the tracer material exhibit a strong resonant response, resulting in high intensity or energy of the ultrasonic echo signal corresponding to the tracer material. When the tracer material moves in the target area, signal acquisition using contrast imaging mode can effectively acquire the ultrasonic echo signal corresponding to the tracer material, resulting in a high signal-to-noise ratio for the ultrasonic image. When the target emission frequency of the ultrasonic signal is outside the preset resonant frequency range, the resonant response between the ultrasonic signal and the tracer material is weak. When the tracer material moves in the target area, if contrast imaging mode is used, only a weak tracer material echo signal can be acquired, resulting in a low signal-to-noise ratio for the ultrasonic image. Therefore, when the target emission frequency of the ultrasonic signal is outside the preset resonant frequency range, signal acquisition should be performed using two-dimensional fundamental wave imaging mode.

[0072] Step 206: Within a preset time period, the ultrasonic echo signal is acquired according to the target imaging mode to obtain multiple target tracking signals. The target tracking signals are then located and tracked using the target imaging mode to obtain the target ultrasonic image.

[0073] The target tracer signal refers to the ultrasonic echo signal corresponding to the tracer substance. The target ultrasonic image can be the density map, orientation map, and velocity map of the tracer substance.

[0074] For example, in contrast imaging mode, the ultrasound echo signal corresponding to the tracer substance can be directly acquired to obtain the target tracer signal. The location of the tracer substance in the target area can be determined based on the target tracer signal. In two-dimensional fundamental wave imaging mode, the ultrasound echo signal is acquired to obtain the two-dimensional fundamental wave signal. The two-dimensional fundamental wave signal includes the ultrasound echo signal corresponding to the tracer substance and the ultrasound echo signal corresponding to the tissue structure. The two-dimensional fundamental wave signal is processed to obtain the ultrasound echo signal corresponding to the tracer substance, i.e., the target tracer signal.

[0075] Within a preset data acquisition time, the tracer material moves within the target area, allowing for the acquisition of target tracer signals at each movement moment. Positioning and tracking these signals determines the spatial location of the tracer material. Based on the movement of the tracer signals, the magnitude and direction of the tracer material's velocity are quantitatively calculated. By accumulating the movement trajectories of the tracer signals at each movement moment, density, velocity, and orientation maps of the tracer material in the target area can be obtained. By determining the positional changes of the tracer material within the target area, a motion video of the tracer material can be obtained, such as... Figure 3 The diagram shown is a schematic of a density map.

[0076] In the aforementioned ultrasound imaging method, ultrasound echo signals from a target region can be acquired at a specific ultrasound signal transmission frequency. The ultrasound echo signal is the echo signal reflected after an ultrasound signal is sent to the target region, at the target transmission frequency. A tracer substance is preset in the target region. Based on the relationship between the target transmission frequency and the preset resonant frequency range of the tracer substance, the target imaging mode corresponding to the target region is determined. Within a preset time period, ultrasound echo signals are acquired according to the target imaging mode, resulting in multiple target tracer signals. Each target tracer signal is processed using the target imaging mode to obtain the target ultrasound image. This method determines the working mode during ultrasound imaging based on the transmission frequency corresponding to the ultrasound signal, enabling high-resolution ultrasound images to be obtained at any transmission frequency. Based on the tracer substance, it can further improve the accuracy and precision of ultrasound images for very small target regions or key areas that are concealed, such as microvascular networks. Furthermore, this method can be applied to the field of medical testing, reducing testing costs while improving testing efficiency.

[0077] In one embodiment, the target imaging mode includes a two-dimensional fundamental wave imaging mode and a contrast imaging mode. The target imaging mode corresponding to the target region is determined based on the relationship between the target emission frequency and the preset resonant frequency range of the tracer material. This includes: when the target emission frequency is not within the preset resonant frequency range, the target imaging mode is determined to be a two-dimensional fundamental wave imaging mode, wherein the two-dimensional fundamental wave imaging mode performs ultrasound imaging by acquiring the two-dimensional fundamental wave signal in the ultrasound echo signal; when the target emission frequency is within the preset resonant frequency range, the target imaging mode is determined to be a contrast imaging mode, wherein the contrast imaging mode performs ultrasound imaging by acquiring the contrast signal in the ultrasound echo signal.

[0078] In this context, the two-dimensional fundamental signal refers to the fundamental signal propagating in two spatial dimensions, such as the x-axis and y-axis. The fundamental signal is the component with the lowest frequency in the signal's spectrum. The contrast signal refers to the ultrasound echo signal acquired during ultrasound imaging, which is associated with a tracer substance (such as a contrast tracer) pre-programmed onto the target object.

[0079] For example, when the target emission frequency is not within the preset resonant frequency range, a two-dimensional fundamental wave imaging mode is used to acquire the two-dimensional fundamental wave signal in the ultrasonic echo signal. In this imaging mode, the two-dimensional fundamental wave signal includes echo signals obtained from the reflection, scattering, diffraction, and other phenomena of ultrasonic signals by different tissue structures in the target area. Therefore, the ultrasonic image includes tissue information of each tissue structure in the target area. For example, when the tracer material is a microbubble containing an inert gas, there is a large difference in acoustic impedance between the tracer material and the tissue structure. The intensity of the echo signal reflected by the tissue structure is high, which can remove noise signals in the echo signal. Here, acoustic impedance refers to the propagation obstacle that exists when ultrasonic waves propagate between different tissue structures. The echo signals generated by the acoustic impedance of different tissue structures can distinguish and determine the tissue structure and tissue function. Furthermore, when the tracer moves in the target area, for example, when the tracer moves with the blood in the tissue vascular network, the movement of the tracer is significantly different from the movement of other extravascular tissue structures. Therefore, it is possible to distinguish the ultrasound echo signal obtained during the movement of the tracer from the ultrasound echo signal obtained from the movement of the tissue structure, and then determine the first tracer signal corresponding to the tracer in the two-dimensional fundamental wave signal.

[0080] When the target emission frequency is within the preset resonant frequency range, a contrast imaging mode is adopted. In this mode, the ultrasonic signal undergoes pulse inversion, amplitude modulation, and contrast pulse sequence processing to obtain the target ultrasonic signal sequence. This target ultrasonic signal sequence exhibits different apertures and polarities. After the target ultrasonic signal sequence is sent to the target area, it is superimposed with the ultrasonic echo signal. This suppresses the ultrasonic echo signal corresponding to tissue structures with small movement amplitudes, allowing direct acquisition of the ultrasonic echo signal corresponding to the movement of the tracer material used for ultrasonic imaging, i.e., the contrast signal.

[0081] In this embodiment, different ultrasound echo signals are acquired under different ultrasound imaging modes. Based on the characteristics of different ultrasound echo signals, the ultrasound echo signal related to the tracer substance, i.e., the tracer signal, can be separated well. Due to the good separation effect of the tracer signal, the position tracking of the tracer substance can be achieved based on the tracer signal, thereby obtaining a high-resolution ultrasound image of the target area. Furthermore, if this method is applied to the field of medical testing, in contrast imaging mode, contrast signals and tracer signals can be acquired simultaneously. Based on the contrast signal, detection and analysis in conventional contrast imaging mode can be achieved, and based on the tracer signal, detection and analysis in super-resolution contrast imaging mode can be achieved, which can reduce detection costs while improving detection efficiency.

[0082] In one embodiment, the two-dimensional fundamental wave signal includes a tissue signal and a first tracer signal. The target tracer signal is obtained by acquiring the ultrasound echo signal according to the target imaging mode, which includes: acquiring the ultrasound echo signal according to the two-dimensional fundamental wave imaging mode to obtain the two-dimensional fundamental wave signal; and performing spatiotemporal filtering and frequency filtering on the two-dimensional fundamental wave signal to filter out the tissue signal to obtain the first tracer signal.

[0083] Spatiotemporal filtering refers to filtering the grayscale value of each pixel in an ultrasound image. It combines or calculates the pixel values ​​surrounding each pixel in the original ultrasound image to obtain a new target ultrasound image with corresponding pixel values. Spatiotemporal filtering can be used for image enhancement and image denoising. Frequency filtering involves performing a Fourier transform on the ultrasound image, converting it from the time domain to the frequency domain, performing filtering in the frequency domain, and finally converting the ultrasound image back to the time domain using an inverse Fourier transform to obtain the filtered ultrasound image. Frequency filtering can be used for image denoising, frequency domain enhancement, and image restoration.

[0084] For example, as described in the foregoing embodiments, in the two-dimensional fundamental wave imaging mode, the ultrasound echo signal of the tissue structure (i.e., the tissue signal) and the ultrasound echo signal corresponding to the tracer substance (i.e., the first tracer signal) can be acquired. Filtering the two-dimensional fundamental wave signal removes the tissue signal, yielding the first tracer signal. Specifically, in the spatiotemporal filtering process, a time-difference-based spatiotemporal filtering method is used. This method is based on the difference between the time delay of the tracer signal propagating in the target region and the time delay of the tissue signal in the tissue structure. By acquiring multiple frames of two-dimensional fundamental wave signals and performing time difference analysis on them, a set of time-difference images is obtained. Then, frequency domain filtering is used to process the time-difference images to separate the tissue signal and the tracer signal. For example, a high-pass filter can be used to suppress the low-frequency components of the tissue signal while retaining the high-frequency tracer signal, resulting in the first tracer signal in the two-dimensional fundamental wave imaging mode.

[0085] In this embodiment, spatiotemporal filtering and frequency filtering can be adjusted according to the characteristics of tissue signals. By filtering out interference from tissue signals, the first tracer signal becomes more prominent, which helps improve the contrast and clarity of the ultrasound image. Filtering also enhances the intensity and visibility of the first tracer signal, aiding in the accurate detection and localization of the tracer substance. Furthermore, filtering helps improve the spatial and frequency resolution of the ultrasound image; by eliminating noise, image blurring and artifacts are reduced, providing more accurate and detailed image information.

[0086] In one embodiment, within a preset time period, ultrasonic echo signals are acquired according to the target imaging mode to obtain multiple target tracer signals, including: within a preset time period, several initial tracer signals are obtained according to the movement of the tracer material in the target area; state parameters of each initial tracer signal are acquired, wherein the state parameters include position parameters, direction parameters and velocity parameters; and multiple target tracer signals are obtained when the state parameters meet the preset parameter conditions.

[0087] The initial tracer signal is the ultrasonic echo signal of the tracer substance.

[0088] For example, the data acquisition time corresponding to the target imaging mode is determined and used as a preset duration. Taking a two-dimensional fundamental wave imaging mode as an example, the ultrasound imaging device can perform multiple data acquisition operations on the two-dimensional fundamental wave signal of the target area based on the two-dimensional fundamental wave imaging mode. Each data acquisition operation can acquire one or more two-dimensional fundamental wave signals. Filtering each two-dimensional fundamental wave signal can obtain multiple initial tracer signals. The initial tracer signal includes a data acquisition tag, which is used to characterize the data acquisition time or data acquisition round corresponding to the initial tracer signal. The position, direction, and velocity of the tracer in the target area can be determined based on the initial tracer signal. Based on the data acquisition tag, the position, direction, and velocity of each initial tracer signal are compared. For example, if the velocity of the tracer at the second time moment is much greater than the velocity of the tracer at other time moments, or the velocity of the tracer at the second time moment is greater than a preset velocity value; or the distance between the position of the tracer at the second time moment and the position of the tracer at other time moments is much greater than a preset distance value; or the direction of the tracer at the second time moment is different from the direction of the tracer at other time moments, the initial tracer signal corresponding to the tracer at the second time moment can be considered an abnormal signal. The initial tracer signal at the second time moment is then deleted from the initial tracer signal to obtain multiple target tracer signals.

[0089] In this embodiment, based on preset parameter conditions, abnormal initial tracer signals can be excluded, reducing noise and artifacts in the image, thereby improving image quality and clarity. During the tracking of the initial tracer signal, excluding abnormal initial tracer signals can improve the tracking effect of the tracer substance and enhance the stability and reliability of the ultrasound image.

[0090] In one embodiment, before acquiring the ultrasound echo signal of the target area, the method includes: acquiring a first ultrasound echo signal of the target object, wherein the first ultrasound echo signal is the echo signal reflected after an ultrasound signal is sent to the target object; obtaining a first ultrasound image based on the first ultrasound echo signal; and if a region of interest exists in the first ultrasound image, using the region of interest as the target area.

[0091] For example, an ultrasound imaging device sends an ultrasound signal to a target object and receives a first ultrasound echo signal obtained after the target object reflects the ultrasound signal. Based on the first ultrasound echo signal, the target object can be detected as a whole, resulting in a first ultrasound image of the target object. Based on the first ultrasound image, areas with lesion features can be designated as regions of interest, and high-resolution ultrasound imaging can be applied to these regions of interest to obtain a target ultrasound image.

[0092] In this embodiment, after determining the target area of ​​the target object based on the region of interest, the ultrasound imaging process of the target area is then performed. This can reduce the amount of data analysis for ultrasound imaging, reduce analysis time and analysis cost, and improve the working efficiency of the ultrasound imaging process.

[0093] In one embodiment, processing target tracer signals using a target imaging mode to obtain a target ultrasound image includes: acquiring a first preprocessing parameter for controlling the number and intensity of bright spots in the ultrasound image, and a second preprocessing parameter for compensating for the motion of the target object; analyzing each target tracer signal based on the first and second preprocessing parameters to obtain an initial ultrasound image; acquiring image processing parameters, including image resolution, image contrast, image filtering, and image enhancement; and performing image processing on the initial ultrasound image based on the image processing parameters to obtain the target ultrasound image.

[0094] For example, such as Figure 4 As shown, during the ultrasound imaging process of the target area, in the process of obtaining an ultrasound image by analyzing the target tracer signal, a first preprocessing parameter can be obtained, such as the Vspeckle parameter corresponding to a special adaptive imaging processing technique. The smaller the Vspeckle parameter, the greater the amount of information in the ultrasound image obtained from signal analysis, and the more noise the ultrasound image contains; conversely, the larger the Vspeckle parameter, the less information in the ultrasound image obtained from signal analysis, and the less noise the ultrasound image, resulting in a cleaner ultrasound image. A second preprocessing parameter is then obtained, such as the motion compensation parameter related to the motion compensation algorithm. The second preprocessing parameter is determined based on the movement of the tissue structure during data acquisition. The smaller the motion compensation parameter, the weaker the suppression effect of the motion compensation algorithm on the movement of the tissue structure during data acquisition, but the smaller the computational load on the target tracer signal, and the shorter the analysis time; conversely, the larger the motion compensation parameter, the stronger the suppression effect of the motion compensation algorithm on the movement of the tissue structure during data acquisition, and the longer the analysis time. Based on the imaging requirements of ultrasound images, first and second preprocessing parameters are determined. Signal analysis is then performed on the tracer signals of each target using these parameters to obtain the initial ultrasound image corresponding to the target region. Image processing is then applied to the initial ultrasound image, including adjusting parameters such as image resolution, contrast, spatial smoothing, and vascular enhancement, to obtain the target ultrasound image.

[0095] Furthermore, the target ultrasound image can be measured. For example, when a tracer moves within the microvessels of the target region, parameters such as microvessel diameter, spacing, density, complexity, tortuosity, and perfusion index can be measured. Moreover, to improve the accuracy of the measurement results and the microvascular network, the initial ultrasound image can be magnified. During image magnification, the resolution and display details of the initial ultrasound image are dynamically increased, thereby improving the accuracy of the measurement results.

[0096] In this embodiment, during ultrasound imaging, the movement of the target object's tissue structure can cause blurring or artifacts in the ultrasound image. Motion compensation technology can correct image distortion caused by motion, improving image clarity and accuracy. After acquiring the ultrasound image, adjusting parameters such as brightness, color, and filtering can improve the quality and readability of the ultrasound image, as well as increase the signal-to-noise ratio and clarity.

[0097] In one exemplary embodiment, such as Figure 5 As shown, an ultrasound imaging method is provided, which is applied to, for example... Figure 6 The ultrasound imaging device shown, the method includes:

[0098] Step 502: Obtain the first ultrasonic echo signal of the target object. The first ultrasonic echo signal is the echo signal reflected after an ultrasonic signal is sent to the target object. Obtain the first ultrasonic image based on the first ultrasonic echo signal. If there is a region of interest in the first ultrasonic image, take the region of interest as the target region.

[0099] Step 504: Obtain the ultrasonic echo signal of the target area. The ultrasonic echo signal is the echo signal reflected after an ultrasonic signal is sent to the target area. Determine the target transmission frequency of the ultrasonic signal.

[0100] Step 506: A tracer material is preset in the target area. When the target emission frequency is not within the preset resonant frequency range, the target imaging mode corresponding to the target area is determined to be a two-dimensional fundamental wave imaging mode. The two-dimensional fundamental wave imaging mode performs ultrasound imaging by acquiring the two-dimensional fundamental wave signal from the ultrasound echo signal. Within a preset time period, the tracer material is controlled to move in the target area. In the two-dimensional fundamental wave imaging mode, the ultrasound echo signal is acquired according to the two-dimensional fundamental wave imaging mode to obtain multiple two-dimensional fundamental wave signals. For each two-dimensional fundamental wave signal, spatiotemporal filtering and frequency filtering are performed to filter out tissue signals, resulting in multiple initial tracer signals.

[0101] Alternatively, a tracer material can be pre-set in the target area. When the target emission frequency is within a pre-set resonant frequency range, the target imaging mode corresponding to the target area is determined as the contrast imaging mode. In this mode, ultrasound imaging is performed by acquiring contrast signals from the ultrasound echo signals. Within a pre-set time period, the tracer material is controlled to move within the target area. In the contrast imaging mode, the ultrasound echo signals are acquired according to the contrast imaging mode to obtain multiple contrast signals, i.e., multiple initial tracer signals.

[0102] For example, as Figure 6 Taking the ultrasound imaging device shown as an example, the ultrasound imaging device 600 includes a probe 602, a display screen 604, a touch screen 606, an operation panel 608, a base 610, and a main unit 612. The main unit 612 is connected to the probe 602, the display screen 604, the touch screen 606, the operation panel 608, and the base 610. The display screen 604 is used to display diagnostic information, such as... Figure 7 As shown, the display screen 604 includes an image display area, a target object information management area, and an image parameter area. The image display area is used to display ultrasound images, the image parameter area is used to display the parameters corresponding to the ultrasound images, and the target object information management area is used to display information about the target object. The touch screen 606 and the operation panel 608 are used to select different applications or functions. The host 612 includes hardware such as a processor, motherboard, and hard disk, and is used to control the ultrasound imaging device 600. The chassis 610 is used to fix or move the ultrasound imaging device 600, and the ultrasound imaging device 600 can be moved freely through the wheels of the chassis.

[0103] Taking a tracer as an imaging tracer as an example, the imaging tracer moves within the microvascular network of the target area. The probe 602 of the ultrasound imaging device 600 can employ multiple ultrasound imaging modes, including two-dimensional fundamental wave imaging, color Doppler imaging, and power Doppler imaging. If the probe 602 is a high-frequency probe, the amplitude of the imaging tracer resonance phenomenon is weaker at higher ultrasound transmission frequencies. In this case, the ultrasound imaging device 600 operates in two-dimensional fundamental wave ultrasound imaging mode, such as... Figure 8 The diagram shown illustrates the workflow for a two-dimensional fundamental ultrasound imaging mode. Figure 9 On the displayed screen, clicking the ultrasound imaging button responds to the command to start the two-dimensional fundamental ultrasound imaging mode, initiating ultrafast plane wave fundamental imaging and completing data acquisition preparation. After clicking the ultrasound imaging button, you will enter the following... Figure 10 The displayed screen shows an example. After determining the preset acquisition duration on this screen, clicking the data acquisition button will trigger a data acquisition command to acquire data from the two-dimensional fundamental wave signal. During the data acquisition process, as follows... Figure 11As shown, the display screen can show the data acquisition progress in real time. When the progress bar reaches 100%, one data acquisition process is completed, obtaining a set of two-dimensional fundamental wave signal data. Simultaneously, a marker image corresponding to this two-dimensional fundamental wave signal data can be generated in the target object information management area of ​​display screen 604. If the preset acquisition time is long, the cancel button below the progress bar can be clicked to cancel the data acquisition command and manually end the data acquisition process, obtaining multiple sets of two-dimensional fundamental wave signal data. Clicking the generated marker image allows the display screen to replay the marker image. In... Figure 12 On the displayed screen, clicking the data analysis button triggers a data analysis command. Based on the motion differences between the contrast tracer and tissue structure, signal processing methods such as subtraction and filtering can be used to separate the contrast tracer signal and tissue signal, obtaining the contrast tracer signal data. Based on the first frame of the two-dimensional image corresponding to the first set of two-dimensional fundamental wave signal data, in... Figure 13 The data analysis interface shown allows for the selection of regions of interest (ROIs) in the first frame of the two-dimensional image. When the ROI is unselected, the boundary of the frame is displayed as a dashed line. In the dashed line state, the size and position of the ROI can be edited. Once the ROI is selected, the boundary of the frame is displayed as a solid line, thus obtaining the ultrasound image corresponding to the ROI.

[0104] If probe 602 is a low-to-medium frequency probe, the amplitude of the contrast tracer resonance phenomenon is obvious at lower low-to-medium frequency ultrasound transmission frequencies. In this case, ultrasound imaging device 600 operates in contrast ultrasound imaging mode. For example... Figure 14 The diagram shows the workflow of the contrast-enhanced ultrasound imaging mode. In this mode, a special emission sequence effectively suppresses signals from tissues with small motion amplitudes. Simple filtering of the acquired contrast signals results in good separation of the contrast tracer signal, leading to high-resolution ultrasound images. In contrast-enhanced imaging mode, such as... Figure 15 As shown, clicking the data acquisition button responds to the data acquisition command. You can also click the start button corresponding to the contrast data at the same time to respond to the start command and simultaneously acquire the contrast data corresponding to the contrast signal and the tracer signal data corresponding to the contrast tracer signal.

[0105] Step 508: Obtain the state parameters of each initial tracer signal, including position parameters, orientation parameters, and velocity parameters; if the state parameters meet the preset parameter conditions, obtain multiple target tracer signals.

[0106] Step 510: Obtain a first preprocessing parameter for controlling the number and intensity of bright spots in the ultrasound image, and a second preprocessing parameter for compensating for the motion of the target object; analyze the tracer signal of each target according to the first and second preprocessing parameters to obtain an initial ultrasound image.

[0107] Step 512: Obtain image processing parameters, including image resolution, image contrast, image filtering, and image enhancement; perform image processing on the initial ultrasound image according to the image processing parameters to obtain the target ultrasound image.

[0108] In this embodiment, the ultrasonic echo signal of the target area is acquired. The ultrasonic echo signal is the echo signal reflected after an ultrasonic signal of the target emission frequency is sent to the target area. A tracer material is preset in the target area. Based on the relationship between the target emission frequency and the preset resonant frequency range of the tracer material, the target imaging mode corresponding to the target area is determined. Within a preset time period, the ultrasonic echo signal is acquired according to the target imaging mode to obtain multiple target tracer signals. Each target tracer signal is located and tracked using the target imaging mode to obtain a target ultrasonic image. This method determines the working mode in the ultrasonic imaging process based on the target emission frequency corresponding to the ultrasonic signal. It can obtain high-resolution ultrasonic images at any target emission frequency. Based on the tracer material, it can also improve the accuracy and precision of ultrasonic images for very small target areas or key areas that are hidden, such as microvascular networks. Furthermore, if this method is applied to the field of medical testing, in contrast imaging mode, both contrast signals and tracer signals can be acquired simultaneously. Based on the contrast signals, detection and analysis of conventional contrast imaging modes can be achieved, and based on the tracer signals, detection and analysis of super-resolution contrast imaging modes can be achieved, which can reduce testing costs while improving testing efficiency.

[0109] It should be understood that although the steps in the flowcharts of the embodiments described above are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the embodiments described above may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages of other steps.

[0110] Based on the same inventive concept, this application also provides an ultrasound imaging apparatus for implementing the ultrasound imaging method described above. The solution provided by this apparatus is similar to the solution described in the above method; therefore, the specific limitations in one or more ultrasound imaging apparatus embodiments provided below can be found in the limitations of the ultrasound imaging method described above, and will not be repeated here.

[0111] In one exemplary embodiment, such as Figure 16 As shown, an ultrasound imaging device 1600 is provided, including: a receiving module 1602, an imaging mode determination module 1604, and an imaging module 1606, wherein:

[0112] The receiving module 1602 is used to acquire the ultrasonic echo signal of the target area. The ultrasonic echo signal is the echo signal reflected after an ultrasonic signal of the target transmission frequency is sent to the target area.

[0113] The imaging mode determination module 1604 is used to pre-set tracer material in the target area and determine the target imaging mode corresponding to the target area based on the relationship between the target emission frequency and the pre-set resonant frequency range of the tracer material.

[0114] The imaging module 1606 is used to acquire ultrasonic echo signals according to the target imaging mode within a preset time period, obtain multiple target tracking signals, locate and track each target tracking signal through the target imaging mode, and obtain target ultrasonic images.

[0115] In one embodiment, the target imaging mode includes a two-dimensional fundamental wave imaging mode and an angiography imaging mode. The imaging mode determination module 1604 is further configured to determine the target imaging mode as a two-dimensional fundamental wave imaging mode when the target transmission frequency is not within the preset resonant frequency range, wherein the two-dimensional fundamental wave imaging mode performs ultrasound imaging by acquiring the two-dimensional fundamental wave signal in the ultrasound echo signal; and to determine the target imaging mode as an angiography imaging mode when the target transmission frequency is within the preset resonant frequency range, wherein the angiography imaging mode performs ultrasound imaging by acquiring the angiography signal in the ultrasound echo signal.

[0116] In one embodiment, the two-dimensional fundamental wave signal includes a tissue signal and a first tracer signal. The imaging module 1606 is further configured to acquire the ultrasound echo signal according to the two-dimensional fundamental wave imaging mode to obtain the two-dimensional fundamental wave signal; and to perform spatiotemporal filtering and frequency filtering on the two-dimensional fundamental wave signal to filter out the tissue signal and obtain the first tracer signal.

[0117] In one embodiment, the imaging module 1606 is further configured to obtain several initial tracer signals based on the movement of the tracer material in the target area within a preset time period; acquire state parameters of each initial tracer signal, wherein the state parameters include position parameters, orientation parameters and velocity parameters; and obtain multiple target tracer signals when the state parameters meet preset parameter conditions.

[0118] In one embodiment, the device is further configured to acquire a first ultrasonic echo signal of a target object, the first ultrasonic echo signal being an echo signal reflected after an ultrasonic signal is sent to the target object; obtain a first ultrasonic image based on the first ultrasonic echo signal, and if a region of interest exists in the first ultrasonic image, use the region of interest as the target region.

[0119] In one embodiment, the imaging module 1606 is further configured to acquire a first preprocessing parameter for controlling the number and intensity of bright spots in the ultrasound image, and a second preprocessing parameter for compensating for the motion of the target object; locate and track each target tracer signal according to the first and second preprocessing parameters to obtain an initial ultrasound image; acquire image processing parameters, wherein the image processing parameters include image resolution, image contrast, image filtering, and image enhancement; and perform image processing on the initial ultrasound image according to the image processing parameters to obtain a target ultrasound image.

[0120] Each module in the aforementioned ultrasound imaging device can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in or independent of the processor in a computer device, or stored in the memory of a computer device as software, so that the processor can call and execute the operations corresponding to each module.

[0121] In one exemplary embodiment, a computer device is provided, which may be a server, and its internal structure diagram may be as follows: Figure 17 As shown, this computer device includes a processor, memory, input / output (I / O) interfaces, and a communication interface. The processor, memory, and I / O interfaces are connected via a system bus, and the communication interface is also connected to the system bus via the I / O interfaces. The processor provides computational and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system, computer programs, and a database. The internal memory provides the environment for the operation of the operating system and computer programs stored in the non-volatile storage media. The database stores ultrasound imaging data. The I / O interfaces are used for exchanging information between the processor and external devices. The communication interface is used for communicating with external terminals via a network. When the computer program is executed by the processor, it implements an ultrasound imaging method.

[0122] In one exemplary embodiment, a computer device is provided, which may be a terminal, and its internal structure diagram may be as follows: Figure 18As shown, the computer device includes a processor, memory, input / output interface, communication interface, display unit, and input device. The processor, memory, and input / output interface are connected via a system bus, and the communication interface, display unit, and input device are also connected to the system bus via the input / output interface. The processor provides computing and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The input / output interface is used for exchanging information between the processor and external devices. The communication interface is used for wired or wireless communication with external terminals; wireless communication can be achieved through Wi-Fi, mobile cellular networks, NFC (Near Field Communication), or other technologies. When the computer program is executed by the processor, it implements an ultrasound imaging method. The display unit is used to form a visually visible image and can be a display screen, projection device, or virtual reality imaging device. The display screen can be an LCD screen or an e-ink screen. The input device of the computer device can be a touch layer covering the display screen, or buttons, trackballs, or touchpads set on the casing of the computer device, or external keyboards, touchpads, or mice, etc.

[0123] Those skilled in the art will understand that the foregoing structure is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or may combine certain components, or may have different component arrangements.

[0124] In one embodiment, a computer device is provided, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the steps of the above-described method embodiments.

[0125] In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon, which, when executed by a processor, implements the steps of the above-described method embodiments.

[0126] In one embodiment, a computer program product is provided, including a computer program that, when executed by a processor, implements the steps of the above-described method embodiments.

[0127] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, data stored, data displayed, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of the relevant data must comply with relevant regulations.

[0128] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM). The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, etc., and are not limited to these.

[0129] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0130] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. An ultrasound imaging method, characterized in that, The method includes: Acquire the ultrasonic echo signal of the target area, wherein the ultrasonic echo signal is the echo signal reflected after an ultrasonic signal of the target transmission frequency is sent to the target area; A tracer material is preset in the target area, and the target imaging mode corresponding to the target area is determined according to the relationship between the target emission frequency and the preset resonant frequency range of the tracer material. Within a preset time period, the ultrasonic echo signal is acquired according to the target imaging mode to obtain multiple target tracking signals. The target tracking signals are then located and tracked using the target imaging mode to obtain a target ultrasonic image.

2. The method according to claim 1, characterized in that, The target imaging mode includes a two-dimensional fundamental wave imaging mode and a contrast imaging mode. Determining the target imaging mode corresponding to the target region based on the relationship between the target emission frequency and the preset resonant frequency range of the tracer material includes: When the target emission frequency is not within the preset resonant frequency range, the target imaging mode is determined to be the two-dimensional fundamental wave imaging mode, wherein the two-dimensional fundamental wave imaging mode performs ultrasound imaging by acquiring the two-dimensional fundamental wave signal in the ultrasound echo signal; When the target emission frequency is within the preset resonant frequency range, the target imaging mode is determined to be the contrast imaging mode, wherein the contrast imaging mode performs ultrasound imaging by acquiring the contrast signal in the ultrasound echo signal.

3. The method according to claim 2, characterized in that, The two-dimensional fundamental wave signal includes a tissue signal and a first tracer signal. The step of acquiring the target tracer signal from the ultrasound echo signal according to the target imaging mode includes: In the two-dimensional fundamental wave imaging mode, the ultrasonic echo signal is acquired according to the two-dimensional fundamental wave imaging mode to obtain the two-dimensional fundamental wave signal; The two-dimensional fundamental wave signal is subjected to spatiotemporal filtering and frequency filtering to filter out the tissue signal, thereby obtaining the first tracer signal.

4. The method according to claim 1, characterized in that, Within a preset time period, the ultrasonic echo signal is acquired according to the target imaging mode to obtain multiple target tracking signals, including: Within the preset time period, several initial tracer signals are obtained based on the movement of the tracer substance in the target area; Obtain the state parameters of each of the initial tracer signals, wherein the state parameters include position parameters, orientation parameters, and velocity parameters; When the state parameters meet the preset parameter conditions, multiple target tracking signals are obtained.

5. The method according to claim 1, characterized in that, Before acquiring the ultrasonic echo signal of the target area, the following steps are included: Acquire the first ultrasonic echo signal of the target object, wherein the first ultrasonic echo signal is the echo signal reflected after an ultrasonic signal is sent to the target object; A first ultrasound image is obtained based on the first ultrasound echo signal. If a region of interest exists in the first ultrasound image, the region of interest is taken as the target region.

6. The method according to claim 5, characterized in that, The step of processing the target tracer signal through the target imaging mode to obtain a target ultrasound image includes: Acquire a first preprocessing parameter for controlling the number and intensity of bright spots in the ultrasound image, and a second preprocessing parameter for compensating for the motion of the target object; Based on the first preprocessing parameters and the second preprocessing parameters, the target tracer signals are located and tracked to obtain an initial ultrasound image; Obtain image processing parameters, wherein the image processing parameters include image resolution, image contrast, image filtering, and image enhancement; The initial ultrasound image is processed according to the image processing parameters to obtain the target ultrasound image.

7. An ultrasonic imaging device, characterized in that, The device includes: The receiving module is used to acquire the ultrasonic echo signal of the target area, wherein the ultrasonic echo signal is the echo signal reflected after an ultrasonic signal of the target transmission frequency is sent to the target area; An imaging mode determination module is used to pre-set a tracer material in the target area and determine the target imaging mode corresponding to the target area based on the relationship between the target emission frequency and the pre-set resonant frequency range of the tracer material. An imaging module is used to acquire ultrasound echo signals according to the target imaging mode within a preset time period to obtain multiple target tracking signals, and to locate and track each target tracking signal through the target imaging mode to obtain a target ultrasound image.

8. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the method according to any one of claims 1 to 6.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 6.

10. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 6.

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