CN111110277B - Ultrasonic imaging method, ultrasonic apparatus, and storage medium - Google Patents
Ultrasonic imaging method, ultrasonic apparatus, and storage medium Download PDFInfo
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- CN111110277B CN111110277B CN201911380077.5A CN201911380077A CN111110277B CN 111110277 B CN111110277 B CN 111110277B CN 201911380077 A CN201911380077 A CN 201911380077A CN 111110277 B CN111110277 B CN 111110277B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/48—Diagnostic techniques
- A61B8/481—Diagnostic techniques involving the use of contrast agent, e.g. microbubbles introduced into the bloodstream
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/06—Measuring blood flow
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/46—Ultrasonic, sonic or infrasonic diagnostic devices with special arrangements for interfacing with the operator or the patient
- A61B8/461—Displaying means of special interest
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/46—Ultrasonic, sonic or infrasonic diagnostic devices with special arrangements for interfacing with the operator or the patient
- A61B8/461—Displaying means of special interest
- A61B8/463—Displaying means of special interest characterised by displaying multiple images or images and diagnostic data on one display
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/48—Diagnostic techniques
- A61B8/488—Diagnostic techniques involving Doppler signals
Abstract
The application provides an ultrasonic imaging method, an ultrasonic device and a storage medium, wherein an ultrasonic group is transmitted at least twice at any position on a scanning plane. The transmitted ultrasound group includes a first type of ultrasound wave and a second type of ultrasound wave, and the first type of ultrasound wave is different from the second type of ultrasound wave in at least one of amplitude and phase. Accordingly, the echo data of the ultrasonic wave group includes echo data of the first type of ultrasonic wave and echo data of the second type of ultrasonic wave, and at least one of the amplitude and the phase of the echo data of the first type of ultrasonic wave is different from that of the echo data of the second type of ultrasonic wave. Therefore, the echo data of the ultrasound group includes at least echo data for obtaining a blood flow ultrasound image and echo data for obtaining a contrast ultrasound image. In summary, the ultrasound imaging method provided by the application can realize the purpose of double real-time imaging of the blood flow ultrasound image and the contrast ultrasound image by utilizing one-time scanning.
Description
Technical Field
The present application relates to the field of medical imaging, and more particularly, to an ultrasound imaging method, an ultrasound apparatus, and a storage medium.
Background
In the imaging process of the ultrasonic imaging system, different ultrasonic images, such as a tissue gray scale ultrasonic image, a blood flow ultrasonic image, a contrast ultrasonic image or a spectrum Doppler ultrasonic image, can be obtained finally after scanning control, emission excitation, signal receiving, beam forming and signal processing. Because scanning control algorithms and imaging principles of different ultrasound images are different, the conventional method can only generate one of a tissue gray scale ultrasound image, a blood flow ultrasound image, a contrast ultrasound image or a spectral doppler ultrasound image through one scanning, namely: the existing ultrasonic imaging algorithm can only obtain the imaging data of one image after being executed once, if different types of images are to be obtained, a user (such as a doctor) needs to switch modes on the ultrasonic equipment, scanning control algorithms corresponding to different modes are different, and scanning control algorithms corresponding to the current mode are executed again to obtain different types of ultrasonic images.
Disclosure of Invention
In view of the above, the present application provides an ultrasound imaging method, an ultrasound device and a storage medium to implement dual real-time imaging of a blood flow ultrasound image and a contrast ultrasound image. The following were used:
an ultrasound imaging method comprising:
transmitting an ultrasonic wave group at least twice at a target position on a scanning plane, wherein the ultrasonic wave group comprises a first type of ultrasonic wave and a second type of ultrasonic wave, and the target position is any one position on the scanning plane; wherein the first type of ultrasound waves is different from the second type of ultrasound waves in at least one of amplitude and phase; the echo data of the ultrasound group transmitted at least twice is used to obtain at least a blood flow ultrasound image and a contrast ultrasound image.
Optionally, the echo data of the at least two transmitted ultrasound wave sets are used for obtaining at least a blood flow ultrasound image and a contrast ultrasound image, including:
generating the contrast ultrasonic image according to the echo data of the first type of ultrasonic waves and the echo data of the second type of ultrasonic waves emitted from each position on the scanning plane;
and obtaining the blood flow ultrasonic image according to the echo data of the first type of ultrasonic waves emitted by each position or the echo data of the second type of ultrasonic waves emitted by each position.
Optionally, the method further comprises:
and simultaneously displaying the blood flow ultrasonic image and the contrast ultrasonic image.
Optionally, the echo data of the at least two transmitted ultrasound wave groups are used for obtaining at least a blood flow ultrasound image and a contrast ultrasound image, and further comprising:
and obtaining at least one of a power Doppler ultrasound image and a blood flow variance ultrasound image according to the echo data of the first type of ultrasound waves transmitted by each position or the echo data of the second type of ultrasound waves transmitted by each position.
Optionally, the method further comprises:
and obtaining a tissue gray-scale ultrasonic image according to the echo data of the first type of ultrasonic wave transmitted by each position on the scanning plane or the echo data of the second type of ultrasonic wave transmitted by each position.
Optionally, the ultrasonic wave group emitted from the target position on the scanning plane is emitted in a plane wave mode;
alternatively, the set of ultrasound waves emitted by a target location on the scan plane are emitted as focused waves.
Optionally, one shot of focused waves is used to scan the entire region to be imaged;
the at least two transmissions of the set of ultrasound waves comprises: transmitting the set of ultrasound waves at least 64 times.
Optionally, the method further comprises:
and generating a spectral Doppler ultrasonic image according to the echo data of the first type of ultrasonic waves or the echo data of the second type of ultrasonic waves in at least 64 groups of ultrasonic waves emitted by the target position.
Optionally, the method further comprises:
simultaneously displaying the blood flow ultrasound image, the contrast ultrasound image, and the spectral Doppler ultrasound image.
An ultrasound device comprising: a memory and a processor;
the memory is used for storing programs;
the processor is configured to execute the program to implement the steps of the method.
A storage medium having stored thereon a computer program which, when executed by a processor, carries out the steps of the method as described above.
According to the technical scheme, the ultrasonic imaging method provided by the application can transmit the ultrasonic wave group at least twice at any position on the scanning plane. Wherein the transmitted group of ultrasonic waves includes a first type of ultrasonic wave and a second type of ultrasonic wave, and at least one of an amplitude and a phase of the first type of ultrasonic wave is different from that of the second type of ultrasonic wave. Therefore, the echo data of the ultrasound group transmitted by the method at least comprises the echo data for obtaining the blood flow ultrasound image and the echo data for obtaining the contrast ultrasound image. Therefore, the method can obtain a contrast ultrasonic image and a blood flow ultrasonic image according to the echo data of the ultrasonic wave group transmitted at least twice. In summary, the ultrasound imaging method provided by the application can realize the purpose of double real-time imaging of the blood flow ultrasound image and the contrast ultrasound image by utilizing one-time scanning.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic flow chart of an ultrasound imaging method provided in an embodiment of the present application;
FIG. 2a illustrates a schematic diagram of a transmission sequence of a first type of ultrasonic group;
FIG. 2b illustrates a schematic diagram of a transmission sequence of a second type of ultrasonic group;
FIG. 3 illustrates a sequence diagram of a transmission sequence of ultrasound waves;
FIG. 4 illustrates a signal processing diagram of a contrast ultrasound image;
FIG. 5 illustrates a signal processing diagram of a blood flow ultrasound image;
fig. 6 is a schematic structural diagram of an ultrasound apparatus according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Fig. 1 is a schematic flow chart of an ultrasound imaging method provided in an embodiment of the present application, and as shown in fig. 1, the method may specifically include:
and S101, transmitting the ultrasonic wave group at least twice at the target position on the scanning plane.
S102, acquiring echo data of ultrasonic waves at each position on a scanning plane.
And S103, obtaining various ultrasonic images according to the obtained echo data of the ultrasonic waves. The embodiment introduces specific implementation manners of the above steps, respectively, as follows:
and S101, transmitting the ultrasonic wave group at least twice at the target position on the scanning plane.
Specifically, the target position is any one position on the scanning plane. The scanning plane is a plane formed by an ultrasonic wave transmitting probe of the ultrasonic equipment, and the target position can be any pulse transmitting position in the scanning plane of the scanning equipment. The ultrasound group includes a first type of ultrasound waves and a second type of ultrasound waves, wherein the first type of ultrasound waves are different from the second type of ultrasound waves in at least one of amplitude and phase.
Optionally, the group of ultrasonic waves emitted at any time may include the following three cases:
the first method comprises the following steps: the first type of ultrasonic wave and the second type of ultrasonic wave have the same amplitude and different phases;
and the second method comprises the following steps: the first type of ultrasonic wave and the second type of ultrasonic wave are different in amplitude and same in phase;
and the third is that: the first type of ultrasound waves are different in amplitude and different in phase from the second type of ultrasound waves.
This step is illustrated with reference to fig. 2a and fig. 2b for two alternative transmission methods. In fig. 2a and 2b, the horizontal coordinate represents time series, and the vertical coordinate represents amplitude. The solid arrows indicate each ultrasonic pulse, and the sign "+" indicates that the phase of the ultrasonic wave is positive, and the sign "-" indicates that the phase of the ultrasonic wave is negative.
Fig. 2a illustrates a schematic diagram of a transmission sequence of a first type of ultrasound group. As shown in FIG. 2a, the first transmission method transmits an ultrasonic wave group N (N ≧ 2) times, and each transmitted ultrasonic wave group includes 2 ultrasonic waves of a first type and 1 ultrasonic wave of a second type. Wherein the amplitude of the first type of ultrasonic wave is smaller than the amplitude of the second type of ultrasonic wave, and the phase of the first type of ultrasonic wave is negative and the phase of the second type of ultrasonic wave is positive. The ultrasound pulses in any of the transmitted ultrasound groups illustrated in figure 2a may be summarized as [ -a,1, -a ], 0< a < 1.
Fig. 2b illustrates a schematic diagram of the transmission sequence of the second type of ultrasound group. As shown in FIG. 2b, the second transmission method M (M ≧ 2) transmits an ultrasonic wave group, each of which includes 1 ultrasonic wave of the first type and 1 ultrasonic wave of the second type. Wherein the amplitude of the first type of ultrasonic wave is smaller than the amplitude of the second type of ultrasonic wave, and the phase of the first type of ultrasonic wave is negative and the phase of the second type of ultrasonic wave is positive. The ultrasound pulses in any one of the transmitted ultrasound groups illustrated in figure 2b can be summarized as [ -a,1], 0< a < 1.
It should be noted that the present embodiment does not limit specific amplitude values and phases of the transmitted ultrasonic waves, the specific implementation manners of the two transmission methods are only examples, and the transmission method of the ultrasonic wave group in the ultrasonic imaging method provided by the present application may further include other specific implementations, for example, the phase of the first type of ultrasonic wave and the phase of the second type of ultrasonic wave in any ultrasonic wave group are both positive, and the amplitude of the first type of ultrasonic wave is greater than the amplitude of the second type of ultrasonic wave. Therefore, the embodiments of the present application are not described in detail.
Optionally, at the target location, pulses are transmitted at a preset pulse repetition frequency (denoted as PRF), which is a user adjustable parameter. The time interval between two ultrasonic pulses emitted from the scanning plane is defined as LetTime, which is determined by the imaging depth of the image and the parameter loading time of the system, mainly by the imaging depth adjusted by the user, wherein the LetTime is necessarily less than 1/PRF.
In this embodiment, the ultrasonic wave group is transmitted at the target position, and includes two selectable transmission modes of ultrasonic waves, as follows:
the first ultrasonic wave group emitted from the target position on the scanning plane is emitted in a plane wave mode.
The ultrasonic wave is transmitted in a plane wave mode, and all array elements of a scanning plane simultaneously transmit ultrasonic pulse. Obviously, in this manner, a single transmission of ultrasound can scan the entire region to be imaged. Wherein, the relation between the array element and the position is as follows: array element number-array element pitch-position coordinates.
Second, ultrasound waves emitted from a target location on a scanning plane are emitted as focused waves.
Specifically, the process of transmitting the ultrasonic waves in the form of focused waves is: according to the preset PRF, the target imaging depth, the target imaging Width (range of 0-1.0) and the number R of wave beams of the ultrasonic imaging system, the Width sweep size which can be scanned by one-time focused wave emission under the target imaging Width and the target imaging depth is calculated, and further, the number of volume data packets (packet size) is calculated, namely, how many times of focused waves need to be emitted by one frame of image obtained by scanning.
For example, if the sweep size is calculated to be 4, and the whole target imaging Width within the scanning plane requires 16 shots, 16/4 shots are required to be 4 focused waves to complete the scanning of the whole imaging range.
It should be noted that, if the scanning plane needs 18 transmissions, the scanning of the whole imaging range needs to be completed by transmitting ceil (18/4) with 5 individual data packets, at this time, the transmitted redundant received data of 2 beams will be discarded in the subsequent processing process, and ceil represents rounding up.
S102, acquiring echo data of ultrasonic waves at each position on a scanning plane.
The echo data of the ultrasonic wave group of the target location includes echo data of a first type of ultrasonic wave and echo data of a second type of ultrasonic wave, and the echo data of the first type of ultrasonic wave is different from the echo data of the second type of ultrasonic wave in at least one of amplitude and phase due to the difference in at least one of amplitude and phase of the transmitted first type of ultrasonic wave and the second type of ultrasonic wave.
Wherein echo data of an ultrasound wave differing in at least one of amplitude and phase can be used to obtain a contrast ultrasound image.
In addition, the echo data of the ultrasonic waves with the same amplitude and phase emitted in different groups can be used for obtaining blood flow ultrasonic images and also can be used for obtaining at least one of power Doppler ultrasonic images and blood flow variance ultrasonic images.
Furthermore, the echo data of the ultrasonic waves with the same amplitude and phase emitted in different groups can also be used for obtaining the tissue gray-scale ultrasonic image.
Further, when the ultrasonic waves emitted from different positions on the scanning plane are emitted in a plane wave manner, or the ultrasonic waves are emitted in a focusing wave manner and the number of the volume data packets is one, the ultrasonic waves are emitted once to scan the whole area to be imaged, at this time, the method can set to emit the ultrasonic wave group at least 64 times, and the acquired echo data of the ultrasonic wave group can also be used for obtaining the spectrum doppler ultrasonic image.
Taking the echo data of the ultrasonic waves obtained through the transmission sequence of the second type of ultrasonic wave group illustrated in fig. 2b as an example, the sequence of the echo data of the ultrasonic waves at each acquired position is described, where the echo data of the first type of ultrasonic wave is S1, the echo data of the second type of ultrasonic wave is S2, the ultrasonic wave group Z transmitted at any time is [ S1, S2], and fig. 3 illustrates a sequence diagram of the transmission sequence of one type of ultrasonic waves.
In fig. 3, the x-coordinate is the position of the scanning plane, and the y-coordinate is the number of scanning pulses (ensemble size) repeatedly transmitted at the same position. The prior art can be referred to for a specific implementation method for acquiring echo data of ultrasonic waves.
And S103, obtaining various ultrasonic images according to the obtained echo data of the ultrasonic waves.
Specifically, the multiple sets of transmit pulses have different at least one of amplitudes and phases, and accordingly echo data of an ultrasound wave having different at least one of amplitudes and phases can be obtained, and such echo data of an ultrasound wave can be used to obtain a contrast ultrasound image, as shown in fig. 4. The echo data of the ultrasound waves corresponding to the transmit pulses with the same amplitude and phase in different groups can be used to obtain a blood flow ultrasound image, as shown in fig. 5. A frame of ultrasonic image can be obtained according to the echo data of the ultrasonic waves at all positions of the scanning plane.
Therefore, according to the echo data of the ultrasound waves acquired in this step, at least two ultrasound images can be obtained in this embodiment, the first ultrasound image is a contrast ultrasound image, and the second ultrasound image is a blood flow ultrasound image. The specific ultrasonic imaging method can comprise the following steps:
a1, an imaging method of a contrast ultrasonic image is to generate echo data of a first type of ultrasonic wave at each position and echo data of a second type of ultrasonic wave at each position.
This step may generate contrast signals at each target location according to the above method, and generate contrast ultrasound images according to the contrast signals at all locations. The prior art can be referred to for a specific implementation manner of the contrast image signal processing method and a specific algorithm for generating the contrast ultrasound image.
A2, a method for imaging a blood flow ultrasound image, which is to obtain a blood flow ultrasound image from echo data of a first type of ultrasound at each position or echo data of a second type of ultrasound at each position.
In this embodiment, the blood flow signals may be obtained at each target position according to the above method, and the blood flow ultrasonic image may be generated according to the blood flow signals at all positions, where a specific implementation of the blood flow signal processing method and a specific algorithm for generating the blood flow ultrasonic image may refer to an existing blood flow signal processing algorithm technology, and details are not repeated here.
It should be noted that after the blood flow ultrasound image and the contrast ultrasound image are obtained through one scanning, two ultrasound images can be further displayed simultaneously, so that the purpose of dual real-time imaging of the blood flow ultrasound image and the contrast ultrasound image is achieved. It should be noted that the purpose of dual real-time imaging is to display both the blood flow ultrasound image and the contrast ultrasound image. In this embodiment, after one scan, a user (e.g., a doctor) can see both the contrast ultrasound image and the blood flow ultrasound image, and the doctor can select to display the blood flow ultrasound image and the contrast ultrasound image at the same time or at different times.
Further, at least one of a power doppler ultrasound image and a blood flow variance ultrasound image can be obtained according to the echo data of the generated blood flow ultrasound image.
Further, according to the echo data of the ultrasonic wave acquired in step S102, a third ultrasonic image, that is, a tissue grayscale ultrasonic image, may also be obtained in this embodiment. The specific implementation mode is as follows:
a3, obtaining a tissue grayscale ultrasound image from the echo data of the first type of ultrasound at each position or the echo data of the second type of ultrasound at each position. The specific implementation mode for generating the organization gray-scale ultrasonic image can refer to the prior art, and the parameter setting and the conventional gray-scale ultrasonic imaging are independently set, so that the optimal image can be debugged.
Further, when the ultrasonic waves emitted from different positions on the scanning plane are emitted in a plane wave manner, or the ultrasonic waves are emitted in a focused wave manner and the number of volume data packets is one, namely, the focused waves are emitted at one time for scanning the whole area to be imaged. The present embodiment may also obtain a fourth ultrasound image, i.e. a spectral doppler ultrasound image, according to the acquired echo data of the ultrasound wave. The specific implementation mode is as follows:
a4, generating a spectral doppler ultrasound image of the target position based on the echo data of the ultrasound wave of the target position.
Wherein, the target position is any position on the scanning plane. It should be noted that when there is one volume data packet, the number of times of repetition of the data received at the same position theoretically may become very large, and generally, the number of times of repetition is up to 64 or more, which is suitable for spectral doppler imaging. The specific implementation mode for generating the spectrum Doppler ultrasonic image can refer to the prior art, and the parameter setting and the spectrum Doppler ultrasonic image are independently set, so that the optimal image can be debugged.
It can be understood that, after the blood flow ultrasound image, the contrast ultrasound image, the tissue gray scale ultrasound image and the spectral doppler ultrasound image are obtained by performing the one-time imaging algorithm, the embodiment of the application supports displaying a plurality of ultrasound images simultaneously. For example, after one sweep, both the blood flow ultrasound image and the contrast ultrasound image and the spectral doppler ultrasound image may be displayed. The present embodiment does not limit the time at which each ultrasound image is displayed to be exactly the same.
According to the technical scheme, the ultrasonic imaging method provided by the application can transmit the ultrasonic wave group at least twice at any position on the scanning plane. The transmitted ultrasound group includes a first type of ultrasound wave and a second type of ultrasound wave, and the first type of ultrasound wave is different from the second type of ultrasound wave in at least one of amplitude and phase. Accordingly, the echo data of the ultrasonic wave group includes echo data of the first type of ultrasonic wave and echo data of the second type of ultrasonic wave, and at least one of the amplitude and the phase of the echo data of the first type of ultrasonic wave is different from that of the echo data of the second type of ultrasonic wave. Therefore, by extracting and processing the echo data of the ultrasonic wave, a blood flow ultrasonic image and an angiography ultrasonic image can be obtained, and the purpose of double real-time imaging of the blood flow ultrasonic image and the angiography ultrasonic image can be achieved by one-time scanning.
Furthermore, the echo data of the transmitted ultrasonic wave group can be used for obtaining an organization gray scale ultrasonic image, so that at least one imaging result of the organization gray scale ultrasonic image, the blood flow ultrasonic image, the energy Doppler ultrasonic image, the blood flow variance ultrasonic image and the contrast ultrasonic image is achieved by one-time scanning, and the purpose of multi-real-time imaging is achieved. The method supports simultaneous display of multiple ultrasonic images, and meets the requirement of simultaneous display of multiple ultrasonic images in practical application, thereby supporting more diagnosis functions.
Further, when the ultrasonic wave is transmitted in a plane wave or plane wave manner, or transmitted in a focused wave manner and the number of volume data packets (packet size) is one, the echo data of the ultrasonic wave can also be used for generating a spectral doppler ultrasound image, and the operation and display of the spectral doppler ultrasound image can be independently completed at each position.
Furthermore, the mode of transmitting the ultrasonic wave group at least twice in the application is set according to the imaging principle of the blood flow ultrasonic image, so that the accuracy of the obtained blood flow ultrasonic image is higher, and the transmitting group number can be set according to the accuracy requirement, the more the transmitting group number, the higher the accuracy of the blood flow ultrasonic image is, and a space is reserved for adjusting the accuracy of the image as required.
It should be noted that in this embodiment, multiple ultrasound images can be obtained by one scanning, that is, a "multiple imaging" mode may be set in the ultrasound device, and a user may select the mode to obtain multiple ultrasound images by one scanning, and meanwhile, the existing mode is retained. Under different imaging modes, parameters in the acquisition algorithm of the ultrasonic image can be mutually independent and separately adjusted. For example, in the imaging algorithm of the blood flow ultrasound image in the multiple imaging modes, the cutoff frequency of the filter is a parameter that needs to be set, and in the imaging algorithm of the blood flow ultrasound image mode, the cutoff frequency of the filter also needs to be set, so the cutoff frequencies of the filters in the multiple imaging modes can be set to different values from the cutoff frequency of the filter in the existing blood flow ultrasound image mode, and can be adjusted independently. That is, in different modes, although it is possible to use the same imaging algorithm, the parameters of the imaging algorithm are independent from each other to obtain better imaging effect.
The ultrasonic imaging method provided by the embodiment of the application can be applied to the scene that a contrast image needs to be generated for medical diagnosis.
By using the ultrasonic imaging method provided by the embodiment of the application, the imaging mode of the blood flow ultrasonic image and the contrast ultrasonic image can be realized through one scanning, the blood flow ultrasonic image and the contrast ultrasonic image can be further displayed simultaneously, and the blood flow ultrasonic image can more accurately describe the perfusion direction of the contrast agent. In addition, the ultrasonic imaging method provided by the embodiment of the application can realize a spectrum Doppler ultrasonic image imaging mode through one scanning, so that more accurate blood flow velocity can be obtained through quantitative analysis.
In conclusion, the method and the device can display the perfusion direction and the blood flow speed of the contrast agent in real time in the contrast process, perform more quantitative analysis on the focus, and display the blood flow perfusion form of the focus, which is more beneficial to the diagnosis of the focus.
Further, the present application may be used not only for two-dimensional (2D) contrast imaging, but also for three-dimensional (3D)/(4D) four-dimensional contrast imaging. The ultrasound imaging method provided by the application can be applied to 3D/4D contrast imaging in an optional scene, namely tumor perfusion of an abdominal probe and hysterosalpingography of an intracavity volume probe. In this application scenario, only the signal providing the contrast agent needs to be of interest for blood flow ultrasound imaging as well as for contrast ultrasound imaging.
The present embodiment introduces an imaging method in this application scenario, as follows:
and S1, after the probe of the ultrasonic equipment is aligned to the area to be imaged by the user and the multi-type imaging mode is triggered, transmitting the ultrasonic wave groups at least twice at the target position on the scanning plane.
Wherein each ultrasonic wave group comprises 1 ultrasonic wave of a first type and 1 ultrasonic wave of a second type, and the ultrasonic wave of the first type is different from the ultrasonic wave of the second type in at least one of amplitude and phase (refer to fig. 2b in particular).
It should be noted that, in order to increase the frame rate of the contrast 4D system, the ultrasound is transmitted by using a plane wave transmission method, or a higher number of imaging beams (the number of receiving lines obtained by one transmission), such as 32 beams, 64 beams, etc., is used in focused transmission, so that the number of transmissions can be reduced, and better time resolution can be obtained.
And S2, acquiring echo data of the ultrasonic wave groups at all positions of the scanning plane of any slice.
S3, processing the signals of the echo data of the ultrasonic wave group through the 3D/4D technology and the ultrasonic imaging method provided by the embodiment of the application, and obtaining a blood flow ultrasonic image and a contrast ultrasonic image in a 3D/4D mode.
Therefore, the flow direction of the oviduct contrast agent in the hystero-salpingography can be identified in real time by the blood flow image in the contrast 3D/4D, and the patency of the oviduct can be diagnosed in an auxiliary mode.
In summary, in the hystero-salpingography, the contrast ultrasound image and the blood flow ultrasound image can be displayed simultaneously by one scanning directly, so that the perfusion and flow directions of the contrast agent can be displayed in the contrast ultrasound image, and the diagnosis of the hystero-salpingography can be assisted. Meanwhile, in abdominal volume probe radiography, the space perfusion direction of blood flow can be presented better, and focus diagnosis can be assisted better.
It should be noted that the contrast 3D/4D function is not limited to a motor-driven volume probe or an actual matrix 2D probe. Different probe technologies only have difference in control logic, but the scanning time sequence in the ultrasonic imaging method is consistent. In addition, the post-processing part of the 3D/4D contrast upper computer can refer to the processing flow in the prior art.
An ultrasound apparatus is further provided in an embodiment of the present application, please refer to fig. 6, which shows a schematic structural diagram of the apparatus, and the apparatus may include: at least one processor 601, at least one communication interface 602, at least one memory 603, and at least one communication bus 604;
in the embodiment of the present application, the number of the processor 601, the communication interface 602, the memory 603, and the communication bus 604 is at least one, and the processor 601, the communication interface 602, and the memory 603 complete communication with each other through the communication bus 604;
the processor 601 may be a central processing unit CPU, or an application Specific Integrated circuit asic, or configured as one or more Integrated circuits, etc.;
the memory 603 may include a high-speed RAM memory, and may further include a non-volatile memory (non-volatile memory), for example, at least one disk memory;
wherein, the memory stores programs, and the processor can execute the programs stored in the memory to realize the methods of the above embodiments.
The embodiment of the present application further provides a storage medium, where a computer program suitable for being executed by a processor may be stored in the storage medium, and when the computer program is executed by the processor, the above-mentioned flow is implemented.
Finally, it should also be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. An ultrasound imaging method, comprising:
transmitting an ultrasonic wave group at least twice at a target position on a scanning plane, wherein the ultrasonic wave group comprises a first type of ultrasonic wave and a second type of ultrasonic wave, and the target position is any one position on the scanning plane; wherein the first type of ultrasound waves is different from the second type of ultrasound waves in at least one of amplitude and phase;
the echo data of the ultrasonic wave group transmitted at least twice is used for at least obtaining a blood flow ultrasonic image and a contrast ultrasonic image;
wherein the echo data of the at least two transmitted ultrasound groups are used to obtain at least a blood flow ultrasound image and a contrast ultrasound image, comprising:
generating the contrast ultrasonic image according to the echo data of the first type of ultrasonic waves and the echo data of the second type of ultrasonic waves emitted from each position on the scanning plane;
obtaining the blood flow ultrasonic image according to the echo data of the first type of ultrasonic waves emitted by each position or the echo data of the second type of ultrasonic waves emitted by each position;
further comprising:
carrying out signal processing on echo data of the ultrasonic wave group by a 4D technology to obtain a blood flow ultrasonic image and a contrast ultrasonic image in a 4D mode;
in contrast 4D, the flow direction of the oviduct contrast agent in the hysterosalpingography is identified in real time in the blood flow image based on the obtained blood flow ultrasonic image and contrast ultrasonic image in the 4D mode.
2. The method of claim 1, further comprising:
and simultaneously displaying the blood flow ultrasonic image and the contrast ultrasonic image.
3. The method of claim 1, further comprising:
and obtaining at least one of an energy Doppler ultrasound image and a blood flow variance ultrasound image according to the echo data of the first type of ultrasonic waves transmitted by each position or the echo data of the second type of ultrasonic waves transmitted by each position.
4. The method of claim 1, further comprising:
and obtaining a tissue gray-scale ultrasonic image according to the echo data of the first type of ultrasonic wave transmitted by each position on the scanning plane or the echo data of the second type of ultrasonic wave transmitted by each position.
5. The method of claim 1, wherein the set of ultrasound waves emitted from the target location on the scan plane are emitted as plane waves;
alternatively, the set of ultrasound waves emitted by a target location on the scan plane are emitted as focused waves.
6. The method of claim 5, wherein one shot of the focused wave is used to scan the entire region to be imaged;
the at least two transmissions of the set of ultrasound waves comprises: transmitting the set of ultrasound waves at least 64 times.
7. The method of claim 6, further comprising:
and generating a spectral Doppler ultrasonic image according to the echo data of the first type of ultrasonic waves or the echo data of the second type of ultrasonic waves in at least 64 groups of ultrasonic waves emitted by the target position.
8. The method of claim 7, further comprising:
simultaneously displaying the blood flow ultrasound image, the contrast ultrasound image, and the spectral Doppler ultrasound image.
9. An ultrasound device, comprising: a memory and a processor;
the memory is used for storing programs;
the processor is used for executing the program and realizing the steps of the method according to any one of claims 1 to 8.
10. A storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, performs the steps of the method according to any of claims 1 to 8.
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| WO2021253293A1 (en) * | 2020-06-17 | 2021-12-23 | 深圳迈瑞生物医疗电子股份有限公司 | Contrast-enhanced ultrasound imaging method, ultrasound imaging device, and storage medium |
| CN113768547B (en) * | 2021-09-14 | 2024-03-22 | 南京超维景生物科技有限公司 | Coronary artery imaging method and device, storage medium and electronic equipment |
| CN114129188B (en) * | 2021-11-18 | 2023-09-15 | 声泰特（成都）科技有限公司 | Ultrasonic contrast perfusion flow direction estimation method and imaging system |
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