CN112638270A - Ultrasonic imaging method and ultrasonic imaging system under multiplex mode - Google Patents
Ultrasonic imaging method and ultrasonic imaging system under multiplex mode Download PDFInfo
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Abstract
A method of ultrasound imaging and an ultrasound imaging system in a multiplex mode, wherein the method comprises a transmitting step (100) and a receiving step (110), wherein: the emitting step (100) comprises at least a first mode of scanning and a second mode of scanning towards the target tissue; the receiving step (110) comprises: receiving the scanned echo signals to generate at least a first mode image and a second mode image of the target tissue; wherein the transmitting step (100) further comprises: the scan area of at least the first mode is reduced to increase at least the frame rate of the first mode image.
Description
The invention relates to an ultrasonic imaging method and an ultrasonic imaging system under a multiplex mode.
The medical ultrasonic imaging diagnostic equipment obtains the ultrasonic characteristic information of human tissues and organ structures by using the transmission of ultrasonic waves in a human body. The current ultrasonic imaging system usually adopts many array elements ultrasonic probe, specifically, high-voltage pulse ripples loading is on each array element of ultrasonic probe, and the excitation array element produces high frequency ultrasonic wave and then forms the transmission beam and gets into the human body. Each array element of the probe receives the echo scattered or reflected by the human tissue structure to form a receiving beam. The ultrasonic diagnosis system extracts the information in the ultrasonic echo to form various imaging mode displays.
The Color doppler blood flow imaging mode (generally referred to as Color mode or C mode for short) calculates dynamic information of blood cells in blood flow by moving target display mode, adjusts three primary colors of red, blue and green according to moving direction, speed and dispersion condition of blood cells, changes brightness thereof, and superimposes the brightness on a two-dimensional scanning image (B mode) to display blood flow information in human body.
The spectral doppler blood flow imaging mode is generally referred to as a D mode, and includes a continuous doppler imaging mode (i.e., a CW mode), a pulsed doppler imaging mode (i.e., a PW mode), and the like. The main principle is to estimate the blood flow velocity of a human body, such as the blood flow of the brain and the heart of the human body, by detecting Doppler shift information and acquiring the frequency spectrum or the power spectrum of the Doppler shift information in real time.
The human tissue can be scanned by using a D mode in a simplex mode of the ultrasonic imaging device, and can also be scanned by using the D mode in a multiplex mode.
For example, in the simplex mode, a tissue and a blood vessel can be positioned through a B mode and a Color mode, and then the B mode and the Color mode are switched to a PW working mode to acquire doppler spectrum information. In the multiplex mode, the D mode, the B mode and the C mode can all be in a simultaneous working state, and an operator can position a blood vessel according to the B image or the Color image on the one hand, and acquire doppler spectrum information of a position of interest by using the D mode on the other hand.
Although the multiplexing mode has the advantages of accurate positioning, there are some disadvantages. For example, on one hand, because the scanning of the D mode takes time, the frame rates of the B image and the C image in the multiplexing mode are significantly reduced, especially in a state where the B mode, the C mode and the D mode are simultaneously operated; on the other hand, in the multiplexing mode, in order to meet a certain frame rate requirement, a compromise must be made in image quality, so that a significant degradation of image quality occurs.
The invention mainly provides an ultrasonic imaging method and an ultrasonic imaging system under a multiplex mode.
In one embodiment, a method of ultrasound imaging in a multiplex mode is provided comprising a transmitting step and a receiving step, wherein:
the transmitting step includes: performing at least a first mode of scanning and a second mode of scanning on the target tissue;
the receiving step includes: receiving the scanned echo signals to generate at least a first mode image and a second mode image of the target tissue;
wherein the transmitting step further comprises: the scan area of at least the first mode is reduced to increase at least the frame rate of the first mode image.
In one embodiment, the reducing the scan area of the at least first mode comprises: the scan area of the first mode is reduced based on the sampling gate position of the second mode.
In one embodiment, the reducing the scan area of the first mode based on the sampling gate position of the second mode includes: acquiring the position of a sampling gate in a second mode; the scan area of the first mode is reduced such that the reduced scan area contains the sampling gate position.
In one embodiment, the reducing the scan area of the at least first mode comprises: receiving a scanning area selected by a user; the current scan area of the first mode is reduced to the selected scan area.
In one embodiment, the performing at least a first mode of scanning and a second mode of scanning on the target tissue comprises: a first mode of scanning, a second mode of scanning, and a third mode of scanning are performed on the target tissue.
In one embodiment, the reducing the scanning area of the at least first mode to increase the frame rate of the at least first mode image comprises: the scanning areas of the first mode and the third mode are reduced to increase the frame rates of the first mode image and the third mode image.
In one embodiment, the reducing the scanning area of the first pattern and the third pattern includes: the scan areas of the first and third modes are reduced based on the sampling gate position of the second mode.
In one embodiment, the reducing the scanning area of the first mode and the third mode based on the sampling gate position of the second mode includes: acquiring the position of a sampling gate in a second mode; and respectively reducing the scanning areas of the first mode and the third mode, wherein the reduced scanning areas of the first mode and the third mode comprise the sampling gate position.
In one embodiment, the reducing the scanning area of the first pattern and the third pattern includes: receiving a scanning area selected by a user; and respectively reducing the current scanning areas of the first mode and the third mode into the selected scanning areas.
In one embodiment, the method further comprises: a sampling gate displaying an image of the target tissue before the reduction of the scanning area and a second pattern; the receiving the scanning area selected by the user comprises: receiving a region selected by a user on the displayed image as the selected scan region.
In one embodiment, the method further comprises: and when the scanning area selected by the user does not contain the sampling gate position of the second mode, performing alarm prompt.
In one embodiment, the method further comprises: and amplifying and displaying the image of the target tissue with the reduced scanning area.
In one embodiment, the enlarging and displaying the image of the target tissue after the reduction of the scanning area includes: the image of the target tissue after the reduction of the scanning area is enlarged to be as large as the size of the image of the target tissue before the reduction of the scanning area.
In one embodiment, the second mode is a D-mode and the first mode is a B-mode or a C-mode.
In one embodiment, the second mode, the first mode and the third mode are respectively a D mode, a B mode and a C mode; or the second mode, the first mode and the third mode are respectively a D mode, a C mode and a B mode.
In one embodiment, an ultrasound imaging system is provided, comprising:
an ultrasound probe comprising an array of piezoelectric elements; the ultrasonic probe is used for transmitting ultrasonic waves to tissues for scanning and receiving echo signals of the scanning;
the scanning controller is used for controlling the ultrasonic probe to scan and receive an echo signal of the scanning; wherein the scan controller controls the ultrasound probe to perform at least a first mode of scanning and a second mode of scanning on a target tissue, and controls the ultrasound probe to receive an echo signal of the scanning; the scanning controller also controls to reduce at least the scanning area of the first mode to increase at least the frame rate of the first mode image;
a processor for generating at least a first mode image and a second mode image of a target tissue from the scanned echo signals;
a display device for displaying the first mode image and the second mode image.
In one embodiment, the scan controller at least reduces the scan area of the first mode based on the sampling gate position of the second mode.
In one embodiment, the scan controller obtains a sampling gate position of the second mode and reduces the scan area of the first mode such that the reduced scan area includes the sampling gate position.
In one embodiment, the scan controller receives a user selected scan area and reduces the current scan area of the first mode to the selected scan area.
In one embodiment, the scan controller controls the ultrasound probe to perform a first mode of scanning, a second mode of scanning, and a third mode of scanning on the target tissue.
In one embodiment, the scan controller reduces the scan area of the first mode and the third mode to increase the frame rate of the first mode image and the third mode image.
In one embodiment, the scan controller reduces the scan area of the first mode and the third mode based on the sampling gate position of the second mode.
In one embodiment, the scan controller obtains the sampling gate position of the second mode and reduces the scan areas of the first mode and the third mode, respectively, such that the reduced scan areas of the first mode and the third mode include the sampling gate position.
In one embodiment, the scan controller receives a scan area selected by a user and reduces the current scan area of the first mode and the third mode to the selected scan area, respectively.
In one embodiment, the display device displays a first mode image before the scan area is reduced and a sampling gate of a second mode; the processor receives a region selected by a user on the displayed first mode image as the selected scan region.
In one embodiment, the processor is further configured to perform an alarm prompt when the scan area selected by the user does not include the sampling gate position of the second mode.
In one embodiment, the processor enlarges for display the first mode image after the scan area is reduced.
In one embodiment, the processor enlarges the first mode image after the reduction of the scanning area to as large a size as the first mode image before the reduction of the scanning area.
In one embodiment, the second mode is a D-mode and the first mode is a B-mode or a C-mode.
In one embodiment, the second mode, the first mode and the third mode are respectively a D mode, a B mode and a C mode; or the second mode, the first mode and the third mode are respectively a D mode, a C mode and a B mode.
In one embodiment, a method for ultrasonic imaging in a multiplex mode is provided, comprising:
scanning a first scan region of a target tissue in a first mode;
receiving an echo signal of scanning in a first mode, and obtaining a first mode image in a first scanning area of a target tissue according to the echo signal;
displaying a first mode image in a first scanning area;
receiving an instruction for entering a multiplexing mode and entering the multiplexing mode, wherein in the multiplexing mode:
scanning a second scan region of the target tissue in the first mode, wherein the second scan region is smaller than the first scan region;
receiving an echo signal of the scanning of the first mode, and obtaining a first mode image in a second scanning area of the target tissue according to the echo signal;
displaying the first mode image in the second scanning area;
scanning the target tissue in a second mode;
receiving the scanned echo signal of the second mode, and obtaining a second mode image of the target tissue according to the echo signal;
and displaying the second mode image.
In one embodiment, displaying the first mode image within the second scan area includes: and magnifying and displaying the first mode image in the second scanning area.
In one embodiment, the displaying the first mode image in the second scanning area in an enlarged manner includes: and amplifying the first mode image in the second scanning area to the same size as the first mode image in the first scanning area and displaying the first mode image.
In one embodiment, the first scanning area includes the second scanning area.
In one embodiment, the first mode is a B mode or a C mode, and the second mode is a D mode.
In one embodiment, a computer-readable storage medium is provided, which includes a program executable by a processor to implement any of the methods described above.
According to the ultrasonic imaging method, the ultrasonic imaging system and the computer readable storage medium in the multi-working mode of the above embodiments, the image frame rate can be improved without sacrificing the image quality.
FIG. 1 is a schematic diagram of an ultrasound imaging system according to an exemplary embodiment;
FIG. 2 (a), FIG. 2 (b) and FIG. 2 (c) are schematic diagrams of a scanning sequence of the spectral Doppler multiplexing mode respectively;
FIG. 3 is a diagram illustrating the time interval between two consecutive transmissions of the same mode;
fig. 4 (a) is a schematic diagram of images of B-mode and C-mode, and fig. 4 (B) is a schematic diagram after the D-mode is turned on based on fig. 4 (a);
fig. 5 (a) is a schematic diagram of an area that the user actually desires to pay attention to being smaller than the B image area and larger than the C image area, and fig. 5 (B) is a schematic diagram of an area that the user actually desires to pay attention to being smaller than the B image area and smaller than the C image area;
FIG. 6 is a flow chart of a method of ultrasound imaging in a multiplex mode according to an embodiment;
FIG. 7 is a flow chart of a method of ultrasound imaging in a multiplex mode according to another embodiment;
fig. 8 is a flowchart of an ultrasound imaging method in a multiplexing mode according to yet another embodiment.
Detailed Description
The present invention will be described in further detail with reference to the following detailed description and accompanying drawings. Wherein like elements in different embodiments are numbered with like associated elements. In the following description, numerous details are set forth in order to provide a better understanding of the present application. However, those skilled in the art will readily recognize that some of the features may be omitted or replaced with other elements, materials, methods in different instances. In some instances, certain operations related to the present application have not been shown or described in detail in order to avoid obscuring the core of the present application from excessive description, and it is not necessary for those skilled in the art to describe these operations in detail, so that they may be fully understood from the description in the specification and the general knowledge in the art.
Furthermore, the features, operations, or characteristics described in the specification may be combined in any suitable manner to form various embodiments. Also, the various steps or actions in the method descriptions may be transposed or transposed in order, as will be apparent to one of ordinary skill in the art. Thus, the various sequences in the specification and drawings are for the purpose of describing certain embodiments only and are not intended to imply a required sequence unless otherwise indicated where such sequence must be followed.
The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning.
Fig. 1 is a schematic structural diagram of an ultrasound imaging system according to an embodiment. An ultrasound imaging system may include an ultrasound probe 10, a scan controller 20, echo processing circuitry 30, a processor 40, and a display device 50.
The ultrasound probe 10 includes a plurality of array elements for performing interconversion between electrical pulse signals and ultrasound waves, thereby performing transmission of ultrasound waves to a biological tissue 60 to be detected (e.g., a biological tissue in a human or animal body) and reception of ultrasound echoes reflected from the tissue. The plurality of array elements included in the ultrasonic probe 10 may be arranged in a row to form a linear array, or arranged in a two-dimensional matrix to form an area array, and the plurality of array elements may also form a convex array. The array elements can transmit ultrasonic waves according to the excitation electric signals or convert the received ultrasonic waves into electric signals. Each array element is thus operable to transmit ultrasound waves to biological tissue in the region of interest and also to receive ultrasound echoes returned through the tissue. When ultrasonic detection is carried out, which array elements are used for transmitting ultrasonic waves and which array elements are used for receiving the ultrasonic waves can be controlled through a transmitting sequence and a receiving sequence, or the time slots of the array elements are controlled to be used for transmitting the ultrasonic waves or receiving ultrasonic echoes. All array elements participating in ultrasonic wave transmission can be simultaneously excited by the electric signals, so that the ultrasonic waves are transmitted simultaneously; or the array elements participating in the ultrasonic wave transmission can be excited by a plurality of electric signals with certain time intervals, so that the ultrasonic waves with certain time intervals are continuously transmitted.
The scan controller 20 is used to control the ultrasound probe 10 to emit an ultrasound beam to the biological tissue 60 on the one hand, and to control the ultrasound probe 10 to receive an ultrasound echo reflected by the tissue from the ultrasound beam on the other hand. In a particular embodiment, the scan controller 20 is configured to generate a transmit sequence and a receive sequence for output to the ultrasound probe. The transmit sequence is used to control some or all of the plurality of array elements in the ultrasound probe 10 to transmit ultrasound waves to the target of interest in the biological tissue 60, and the parameters of the transmit sequence include the number of array elements used for transmission and ultrasound wave transmission parameters (e.g., amplitude, frequency, number of times of wave transmission, transmission interval, transmission angle, wave pattern and/or focusing position, etc.). The reception sequence is used to control a part or all of the plurality of array elements to receive echoes of the ultrasonic waves after being organized, and the parameters of the reception sequence include the number of array elements for reception and reception parameters (for example, reception angle, depth, and the like) of the echoes. The ultrasound parameters in the transmit sequence and the echo parameters in the receive sequence differ depending on the application of the ultrasound echoes or the images generated from the ultrasound echoes.
The echo processing circuit 30 is configured to process the ultrasonic echo signal received by the ultrasonic probe 10, for example, filter, amplify, and perform beam forming on the ultrasonic echo signal to obtain ultrasonic echo data. In a specific embodiment, the echo processing circuit 30 may output the ultrasound echo data to the processor 40, or may store the ultrasound echo data in a memory, and when an operation needs to be performed based on the ultrasound echo data, the processor 40 reads the ultrasound echo data from the memory. It will be appreciated by those skilled in the art that the echo processing circuit 30 may also be integrated in the processor 40, or that the echo processing circuit 30 may also be implemented as an integrated circuit or a microprocessor or the like.
The processor 40 is used for acquiring the ultrasonic echo data and obtaining the required parameters or images by adopting a relevant algorithm.
The display device 50 may be used to display information, such as parameters and images calculated by the processor 40. It should be understood by those skilled in the art that in some embodiments, the ultrasound imaging system itself may not be integrated with the display device, but rather, a computer device (e.g., a computer) is connected to display information through the display device (e.g., a display screen) of the computer device. In this case, the display device of the computer apparatus is also considered as the display device of the ultrasound imaging system, i.e., the display device of the ultrasound imaging system mentioned in the embodiment of the present invention includes the display device integrated with the ultrasound imaging system itself, and also includes an external display device connected to the ultrasound imaging system.
The above is a description of some basic configurations of ultrasound imaging systems. For the ultrasonic imaging system, the simplex mode (simplex imaging mode) means that the scan controller 20 controls the ultrasonic probe 10 to perform scanning in only one type of mode, and for example, the spectral doppler simplex mode means that the scan controller 20 controls the ultrasonic probe 10 to perform scanning in only the D mode currently; the multiplexing mode (multiplexing imaging mode) refers to the scan controller 20 controlling the ultrasound probe 10 to perform a plurality of modes of scanning in a certain order, and for example, the spectral doppler multiplexing mode refers to the scan controller 20 controlling the ultrasound probe 10 to perform a D-mode of scanning and other modes of scanning (e.g., B-mode and/or C-mode) in a certain order, and the spectral doppler multiplexing mode is further described below with reference to fig. 2.
Fig. 2 is a schematic diagram of a scanning timing sequence in the spectral doppler multiplexing mode, in which a solid line represents a D-mode scanning, and a dotted line represents other scanning lines, such as a B-mode scanning and/or a C-mode scanning.
As shown in fig. 2 (a), when the spectral doppler multiplexing mode is a multiplexing mode of D-mode and B-mode, the scan controller 20 controls the ultrasound probe 10 to alternately perform D-mode scanning and B-mode scanning, such as a continuous D-mode scanning, a continuous B-mode scanning, a continuous D-mode scanning, and a continuous B-mode scanning … ….
Similarly, as shown in fig. 2 (b), when the spectral doppler multiplexing mode is a multiplexing mode of D-mode and C-mode, the scan controller 20 controls the ultrasound probe 10 to alternately perform D-mode scanning and C-mode scanning, such as a segment of continuous D-mode scanning, a segment of continuous C-mode scanning, a segment of continuous D-mode scanning, and a segment of continuous C-mode scanning … ….
Similarly, as shown in fig. 2 (C), when the spectral doppler multiplexing mode is a multiplexing mode of D mode, B mode and C mode, the scan controller 20 controls the ultrasound probe 10 to alternately perform D mode scanning, B mode scanning and C mode scanning, such as a segment of continuous D mode scanning, a segment of continuous B mode scanning, a segment of continuous C mode scanning, a segment of continuous D mode scanning, a segment of continuous B mode scanning and a segment of continuous C mode scanning … …. It should be understood by those skilled in the art that the above is only an example of the scanning timing in the multiplexing mode of the D mode, the B mode, and the C mode, and the order of the scanning of the B mode and the scanning of the C mode may be changed from each other.
Accordingly, the processor 40 can process the scanned echo signals accordingly, and accordingly obtain images of various modes, such as B image, C image, D image, or the like.
The Pulse Repetition Frequency (PRF) refers to the Frequency of continuous transmission in the same mode, and it can be understood that the reciprocal of the PRF is the time interval between two continuous transmissions in the same mode. For example, referring to fig. 3, it is not taken as an example of a multiplexing mode of D mode and B mode, in the figure, D _ PRF represents a pulse repetition frequency of D scan, so 1/D _ PRF represents a time interval of two consecutive transmissions in D mode, B _ PRF represents a pulse repetition frequency of B scan, and 1/B _ PRF represents a time interval of two consecutive transmissions in B mode.
The concept of the present invention is explained in detail below.
In the spectral doppler multiplexing mode, since the D-mode occupies a certain scanning time, the scanning time of other modes (for example, B-mode and/or C-mode) is reduced, because the image quality of B-mode and/or C-mode needs to be sacrificed to maintain or improve the image frame rate, and the image frame rate needs to be sacrificed to maintain or improve the image quality of B-mode and/or C-mode, which are not compatible.
While both B-mode and C-mode imaging are two-dimensional planar imaging, scanning of a frame image is typically accomplished with line-to-line firing (e.g., from left to right) during imaging. The interval between two adjacent shots is related to the depth of the deepest part of the image, and generally, the deeper the depth of the deepest part of the image, the larger the interval between two adjacent shots is, because the deeper the depth to which any one shot needs to be scanned is, the longer the time is taken, and the later the shot is started. The larger the interval between two adjacent transmissions, or the smaller the pulse repetition frequency, the lower the frame rate or the image quality, and a necessary sacrifice must be made between the two.
An example of images of B-mode and C-mode is shown in fig. 4 (a); as shown in fig. 4 (B), when the spectral doppler multiplexing mode is turned on, the inventor considers that a user (e.g. a doctor) usually only focuses on information near the D-mode sampling gate, and the information of the rest positions of the image is relatively small in clinical significance, so that this point can be utilized to reduce the emission range of the B-mode and/or C-mode in the transverse direction (i.e. the scanning direction of the scanning line) or the longitudinal direction (i.e. the depth direction) to shorten the emission interval, thereby achieving the purpose of saving time and improving the frame rate or the image quality.
For example, the area surrounded by the dotted line in fig. 5 is an area that the user actually desires to focus on, and it should be noted that the dotted line may or may not be displayed on the image that is actually displayed, and the dotted line is drawn in fig. 5 only for illustration. As shown in fig. 5 (a), when the region that the user actually desires to focus on is smaller than the B image region and larger than the C image region, the region of the B image outside the dotted line region may not be scanned any more, so that the number of scan lines of the B image per frame in the B mode may be reduced in the lateral direction, and since the number of scan lines of the B image per frame is reduced, more B image frames may be obtained within the same time, and thus, for example, the frame rate of the B image may be increased without changing other imaging parameters. And/or, unnecessary scanning depth can be reduced in the longitudinal direction, compared with the existing spectral doppler multiplexing mode, because the scanning depth is reduced, the time interval between adjacent scanning lines can be reduced, that is, the pulse repetition frequency can be increased, more scanning lines can be scanned in the same time, and therefore, for example, under the condition that other imaging parameters are not changed, the frame rate of the B image can also be increased. Therefore, the frame rate of the B image in the multiplex imaging mode can be improved under the condition of not reducing or slightly reducing the image quality, and the balance between the frame rate of the B image and the image quality in the multiplex mode can be better realized. Of course, the embodiment of the present invention is not limited to increasing the frame rate of the B image, and similarly may increase the frame rate of the other mode images (for example, the C image) in the multi-imaging mode without reducing or slightly reducing the image quality.
Similarly, as shown in fig. 5 (B), when the area that the user actually desires to pay attention to is smaller than the B image area and also smaller than the C image area, then both the area of the B image and the area of the C image outside the dotted line area may not be rescanned, so that the number of scanning lines of the B mode and the number of scanning lines of the C mode may be reduced in the lateral direction and/or unnecessary scanning depth may be reduced in the longitudinal direction.
Fig. 5 is a multiplexing (triplex) mode of D mode, B mode and C mode, wherein the D mode is spectral doppler mode. The multiplexing (duplex) mode of the D mode and the B mode is also similar, and if the area that the user actually desires to pay attention to is smaller than the B image area, the number of scanning lines of the B mode can be reduced in the lateral direction and/or unnecessary scanning depth can be reduced in the longitudinal direction. The multiplexing (duplex) mode of the D mode and the C mode is also similar, and if the area that the user actually desires to pay attention to is smaller than the C image area, the number of scanning lines of the C mode can be reduced in the lateral direction and/or unnecessary scanning depth can be reduced in the longitudinal direction.
It should be noted that the area that the user actually desires to focus on may be preset, or may be set according to the situation of the user. The image of the area which the user actually wants to pay attention to is subjected to image processing, namely, the image can be amplified in a proper proportion and is amplified to the display proportion before entering the spectrum Doppler multiplexing mode.
In one embodiment, in an ultrasound imaging system, the scan controller 20 controls the ultrasound probe 10 to perform scanning and receive echo signals of the scanning. For example, the scan controller 20 may control the ultrasound probe 10 to perform at least the second mode scan and the first mode scan to the target tissue according to a preset timing sequence, and control the ultrasound probe 10 to receive the echo signals of the scans; the processor 40 may process the received echo signals of each scan to obtain images of the target tissue, such as a first mode image and a second mode image; the scan controller 20 further controls to reduce at least the scan area of the first mode to increase at least the frame rate of the first mode image; the display device 50 may display the obtained images, such as the first mode image and the second mode image.
In one embodiment, the second mode may be a D mode, and the first mode may be a mode other than the D mode, for example, a B mode or a C mode. However, herein, the first mode and the second mode are not limited thereto, and may be other imaging modes, respectively.
In one embodiment, the first mode of scanning and the second mode of scanning may be performed only on the target tissue at a preset timing. In one embodiment, the first mode of scanning, the second mode of scanning, and the additional modes of scanning may be performed on the target tissue at a predetermined timing. For example, the present embodiment may perform D-mode scanning and B-mode scanning on a target tissue according to a preset time sequence, where the second mode is a D-mode and the first mode is a B-mode; in this embodiment, the D-mode scanning and the C-mode scanning may be performed on the target tissue according to a preset time sequence, where the second mode is the D-mode and the first mode is the C-mode; in this embodiment, D-mode scanning, B-mode scanning, and C-mode scanning may be performed on the target tissue according to a preset timing sequence, where the second mode is a D-mode, the first mode is a C-mode, and the B-mode is another mode with respect to the second mode and the first mode, or the first mode is a B-mode, and the C-mode is another mode with respect to the second mode and the first mode.
The control by the scan controller 20 to reduce at least the scan area of the first mode may be automatic or may be a user manually selected area.
Since the area that the user actually wishes to focus on is generally concentrated in this area of the sampling gate position of the second pattern, and other areas that are relatively far from the sampling gate position of the second pattern are not of much interest, the scan controller 20 may automatically reduce the scan area of the first pattern based on the sampling gate position of the second pattern. Thus, in one embodiment, the scan controller 20 may control to reduce at least the scan area of the first mode based on the sampling gate position of the second mode. In a specific embodiment, the scan controller 20 may first obtain the sampling gate position of the second mode, and then control to reduce the scan area of the first mode, so that the reduced scan area includes the sampling gate position.
The scan controller 20 may also receive and reduce the scan area of the first mode according to the scan area selected by the user. Thus, in one embodiment, the scan controller 20 may receive a scan region selected by a user; when the selected scanning area is smaller than the current scanning area of the first mode, the current scanning area of the first mode is controlled to be reduced to the selected scanning area. It will be appreciated that when the scan region selected by the user is greater than or equal to the scan region currently in the first mode, the scan controller 20 cannot complete the operation of reducing the scan region currently in the first mode to the selected scan region, and the ultrasound imaging system may perform an alarm prompt, such as an alarm prompt by the processor 40, to prompt the user to make an incorrect scan region selection or prompt the user to re-make a scan region selection, etc.
There are various ways to reduce the scanning area of the first mode according to the scanning area selected by the user, for example, when the display device 50 displays the first mode image before the scanning area is reduced and the sampling gate of the second mode (for example, the sampling gate can be displayed on the first mode image), the processor 40 receives the area selected by the user on the image displayed on the display device 50 by using a tool such as a mouse as the scanning area selected by the user.
The scan area selected by the user is the area that the user actually desires to focus on, and considering that the area that the user actually desires to focus on is generally concentrated in the area of the sampling gate position of the second mode, in one embodiment, when the scan area selected by the user does not include the sampling gate position of the second mode, the ultrasound imaging system may perform an alarm prompt, such as generating an alarm prompt by the processor 40.
In order to better conform to the viewing habits of the user, in one embodiment, the processor 40 may enlarge the first mode image with the reduced scanning area for display by the display device 50. For example, the processor 40 may enlarge the first mode image after the scan area is reduced to be as large as the size of the first mode image before the scan area is reduced.
Referring to fig. 6, the present embodiment further provides an imaging method under a multiplexing mode (hereinafter referred to as an imaging method), which includes steps 100 and 110, which are described in detail below.
Step 100 is a transmitting step, and may include: at least the second mode of scanning and the first mode of scanning are performed on the target tissue.
Step 110 is a receiving step, and may include: control receiving the scanned echo signals to generate images of the target tissue, such as a first mode image and a second mode image.
In the imaging method, the step 100 of transmitting further comprises: controlling to reduce at least the scanning area of the first mode to increase at least the frame rate of the first mode image. It will be appreciated by those skilled in the art that the first mode image of the target tissue generated in step 110 is also updated in real time after the transmitting step controls the reduction of at least the first mode scan area.
In one embodiment, the step 100 of controlling to reduce at least the scanning area of the first mode may include: the scan area of at least the first mode is controlled to be reduced based on the sampling gate position of the second mode. For example, in step 100, the sampling gate position of the second mode is obtained, and then the scanning area of the first mode is reduced under control, so that the reduced scanning area includes the sampling gate position.
In one embodiment, the step 100 of controlling to reduce at least the scanning area of the first mode may include: receiving a scanning area selected by a user; and when the selected scanning area is smaller than the current scanning area of the first mode, controlling to reduce the current scanning area of the first mode to the selected scanning area. It is understood that when the scan area selected by the user is greater than or equal to the scan area currently in the first mode, the imaging method may include a step of performing an alarm prompt to prompt the user to perform a wrong scan area selection or to prompt the user to perform a scan area selection again, etc.
There are a number of ways in which the user selected scan area may be received, for example an image of the target tissue before the scan area is reduced and a second mode of the sample gate may be displayed; receiving a region selected by a user on the displayed image as the selected scan region.
In combination with the user manually selecting the scan region and the sampling gate position of the second mode, in one embodiment, the imaging method further comprises: and when the scanning area selected by the user does not contain the sampling gate position of the second mode, performing alarm prompt.
In order to better conform to the viewing habits of the user, referring to fig. 7, the imaging method in an embodiment may further include a step 120 of enlarging and displaying: and enlarging the first mode image of the target tissue with the reduced scanning area for display. For example, step 120 may enlarge the first mode image of the target tissue after the scan area reduction to be as large as the size of the first mode image before the scan area reduction.
In one embodiment, in an ultrasound imaging system, the scan controller 20 controls the ultrasound probe 10 to perform scanning and receive echo signals of the scanning. For example, the scan controller 20 may control the ultrasound probe 10 to perform the first mode scan, the second mode scan, and the third mode scan on the target tissue according to a preset timing sequence, and control the ultrasound probe 10 to receive the scanned echo signals; the processor 40 may obtain images of the target tissue, such as a first mode image, a second mode image, and a third mode image, from the scanned echo signals; the scan controller 20 also controls to reduce the scan areas of the first and third modes to increase the frame rates of the first and third mode images; the display device 50 may display the images, such as displaying a first mode image, a second mode image, and/or a third mode image. It should be noted that the first mode, the second mode, and the third mode in this embodiment may be a B mode, a D mode, and a C mode, respectively; alternatively, the first mode, the second mode, and the third mode may be a C mode, a D mode, and a B mode, respectively.
The scan controller 20 may control the reduction of the scan area for the first mode and the third mode to be automatic or the user may manually select the area.
Since the area that the user actually wants to focus on is generally concentrated on the area of the sampling gate position of the second mode, and other areas that are far from the sampling gate position of the second mode are not too focused, the scan controller 20 can automatically reduce the scan areas of the first mode and the third mode based on the sampling gate position of the second mode. Therefore, in an embodiment, the scan controller 20 may control to decrease the scan areas of the first mode and the third mode based on the sampling gate position of the second mode to increase the frame rates of the first mode image and the third mode image. In a specific embodiment, the scan controller 20 may first obtain the sampling gate position of the second mode, and then respectively control to reduce the scanning areas of the first mode and the third mode, so that the reduced scanning areas of the first mode and the third mode both include the sampling gate position.
The scan controller 20 may also receive and reduce the scan area of the first mode and the third mode according to the scan area selected by the user. Thus, in one embodiment, the scan controller 20 may receive a scan region selected by a user; and when the selected scanning area is smaller than the current scanning areas of the first mode and the third mode, controlling to reduce the current scanning areas of the first mode and the third mode into the selected scanning area respectively. It is to be understood that when the scanning area selected by the user is larger than the current scanning area in the first mode and the third mode, the scanning controller 20 cannot complete the operation of reducing the current scanning area in the first mode and the third mode to the selected scanning area, and the ultrasound imaging system may perform an alarm prompt, for example, an alarm prompt through the processor 40, to prompt the user to perform an incorrect scanning area selection or prompt the user to perform a scanning area selection again, etc.
There are various ways to reduce the scanning areas of the first mode and the third mode according to the scanning area selected by the user, for example, displaying the image of the target tissue before the reduction of the scanning area on the display device 50 and the sampling gate of the second mode, and the processor 40 receives the area selected by the user on the image displayed on the display device 50 through a mouse or other tool as the scanning area selected by the user.
The scan area selected by the user is the area that the user actually desires to focus on, and considering that the area that the user actually desires to focus on is generally concentrated in the area of the sampling gate position of the second mode, in one embodiment, when the scan area selected by the user does not include the sampling gate position of the second mode, the ultrasound imaging system may perform an alarm prompt, such as generating an alarm prompt by the processor 40.
To better conform to the viewing habits of the user, in one embodiment, the processor 40 may enlarge the first mode image of the target tissue with the reduced scan area for display by the display device 50. For example, the processor 40 may enlarge the first mode image after the scan area is reduced to be as large as the size of the first mode image before the scan area is reduced.
Referring to fig. 8, the present embodiment further provides an imaging method under a multiplexing mode (hereinafter referred to as an imaging method), which includes steps 200 and 210, which are described in detail below.
Step 200 is a transmitting step, and may include: a first mode of scanning, a second mode of scanning, and a third mode of scanning are performed on the target tissue.
Step 210 is a receiving step, and may include: control receiving the scanned echo signals to generate an image of the target tissue, such as a first mode image, a second mode image, and/or a third mode image.
In the imaging method, the step 200 of transmitting further comprises: and controlling to reduce the scanning areas of at least the first mode and the third mode so as to improve the frame rates of the first mode image and the third mode image. It will be appreciated by those skilled in the art that the image of the target tissue generated in step 210 is also updated in real time as the transmitting step controls the reduction of the scan area in the first and third modes.
In one embodiment, the step 200 of controlling to reduce the scanning area of the first mode and the third mode includes: and controlling to reduce the scanning areas of the first mode and the third mode based on the sampling gate position of the second mode to increase the frame rates of the first mode image and the third mode image. For example, in step 200, the sampling gate position of the second mode is obtained, and then the scanning areas of the first mode and the third mode are respectively controlled to be reduced, so that the reduced scanning areas of the first mode and the third mode both include the sampling gate position.
In one embodiment, the step 200 of controlling to reduce the scanning area of the first mode and the third mode may include: receiving a scanning area selected by a user; and when the selected scanning area is smaller than the current scanning areas of the first mode and the third mode, respectively reducing the current scanning areas of the first mode and the third mode into the selected scanning area. It is understood that when the scanning area selected by the user is greater than or equal to the current scanning areas of the first mode and the third mode, the imaging method may include a step of performing an alarm prompt to prompt the user to perform an incorrect scanning area selection or to prompt the user to perform a scanning area selection again, etc.
There are a number of ways in which the user selected scan area may be received, for example an image of the target tissue before the scan area is reduced and a second mode of the sample gate may be displayed; receiving a region selected by a user on the displayed image as the selected scan region.
In combination with the user manually selecting the scan region and the sampling gate position of the second mode, in one embodiment, the imaging method further comprises: and when the scanning area selected by the user does not contain the sampling gate position of the second mode, performing alarm prompt.
In order to better conform to the viewing habits of the user, the imaging method in one embodiment may further include a step of: and enlarging the first mode image with the reduced scanning area for display. For example, the first mode image after the reduction of the scanning area may be enlarged as large as the size of the first mode image before the reduction of the scanning area.
In the embodiment of the invention, the reduction of the scanning area can be performed after the ultrasonic imaging system enters the multiplex imaging mode, or can be performed when other imaging modes are switched to the multiplex imaging mode.
For example, in one embodiment, a method of ultrasound imaging in a multiplex mode is provided, which may include the steps of:
the scan controller 20 controls the ultrasound probe 10 to perform a first mode of scanning to a first scan region of the target tissue;
the scanning controller 20 controls the ultrasonic probe 10 to receive echo signals of the scanning of the first mode, and the processor 40 obtains a first mode image in the first scanning area of the target tissue according to the echo signals;
the display device 50 displays a first mode image within the first scanning area;
the processor 40 receives a user-input or other device-generated instruction to enter the multiplexing mode and controls the ultrasound imaging system to enter the multiplexing mode, and in the multiplexing mode:
the scan controller 20 controls the ultrasound probe 10 to perform a first mode of scanning to a second scan region of the target tissue, which is smaller than the aforementioned first scan region;
the scanning controller 20 controls the ultrasonic probe 10 to receive the echo signal of the first mode scanning, and the processor 40 obtains a first mode image in the second scanning area of the target tissue according to the echo signal;
the display device 50 displays the first mode image in the second scanning area;
the scanning controller 20 controls the ultrasonic probe 10 to perform a second mode of scanning on the target tissue;
the scanning controller 20 controls the ultrasonic probe 10 to receive the echo signal of the second mode scanning, and the processor 40 obtains a second mode image of the target tissue according to the echo signal;
the display device 50 displays the second mode image.
In this embodiment, when the ultrasound imaging system is switched from the other imaging mode into the multiplex imaging mode, the scanning area of the first mode is changed from the first scanning area to the second scanning area smaller than the first scanning area, so that the frame rate of the first mode image can be increased as described above.
In one embodiment, the display device 50 may enlarge and display the first mode image in the second scanning area. For example, in one embodiment, the display device 50 may enlarge and display the first mode image in the second scanning area to the same (or substantially the same) size as the first mode image in the first scanning area. Of course, in one embodiment, the first mode image in the second scanning area may also be enlarged to a different size than the first mode image in the first scanning area.
In one embodiment, the first scanning area includes the second scanning area, i.e., the second scanning area is included in the first scanning area. However, in the embodiment of the present invention, it is not limited that the second scanning area must be included in the first scanning area.
The first mode may be a B mode or a C mode, and the second mode may be a D mode. However, the embodiments of the present invention are not limited thereto, and the first mode and the second mode may be any other suitable imaging mode, respectively.
In one embodiment, a computer-readable storage medium is also provided, which includes a program that is executable by a processor to implement any of the methods described above.
Reference is made herein to various exemplary embodiments. However, those skilled in the art will recognize that changes and modifications may be made to the exemplary embodiments without departing from the scope hereof. For example, the various operational steps, as well as the components used to perform the operational steps, may be implemented in differing ways depending upon the particular application or consideration of any number of cost functions associated with operation of the system (e.g., one or more steps may be deleted, modified or incorporated into other steps).
In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. Additionally, as will be appreciated by one skilled in the art, the principles herein may be reflected in a computer program product on a computer readable storage medium, which is pre-loaded with computer readable program code. Any tangible, non-transitory computer-readable storage medium may be used, including magnetic storage devices (hard disks, floppy disks, etc.), optical storage devices (CD-ROMs, DVDs, Blu Ray disks, etc.), flash memory, and/or the like. These computer program instructions may be loaded onto a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions which execute on the computer or other programmable data processing apparatus create means for implementing the functions specified. These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including means for implementing the function specified. The computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified.
While the principles herein have been illustrated in various embodiments, many modifications of structure, arrangement, proportions, elements, materials, and components particularly adapted to specific environments and operative requirements may be employed without departing from the principles and scope of the present disclosure. The above modifications and other changes or modifications are intended to be included within the scope of this document.
The foregoing detailed description has been described with reference to various embodiments. However, one skilled in the art will recognize that various modifications and changes may be made without departing from the scope of the present disclosure. Accordingly, the disclosure is to be considered in an illustrative and not a restrictive sense, and all such modifications are intended to be included within the scope thereof. Also, advantages, other advantages, and solutions to problems have been described above with regard to various embodiments. However, the benefits, advantages, solutions to problems, and any element(s) that may cause any element(s) to occur or become more pronounced are not to be construed as a critical, required, or essential feature or element of any or all the claims. As used herein, 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, system, article, or apparatus. Furthermore, the term "coupled," and any other variation thereof, as used herein, refers to a physical connection, an electrical connection, a magnetic connection, an optical connection, a communicative connection, a functional connection, and/or any other connection.
Those skilled in the art will recognize that many changes may be made to the details of the above-described embodiments without departing from the underlying principles of the invention. Accordingly, the scope of the invention should be determined from the following claims.
Claims (36)
- A method of ultrasound imaging in a multiplex mode comprising a transmitting step and a receiving step, wherein:the transmitting step includes: performing at least a first mode of scanning and a second mode of scanning on the target tissue;the receiving step includes: receiving the scanned echo signals to generate at least a first mode image and a second mode image of the target tissue;wherein the transmitting step further comprises: the scan area of at least the first mode is reduced to increase at least the frame rate of the first mode image.
- The imaging method of claim 1, wherein said reducing at least the scan area of the first mode comprises: the scan area of the first mode is reduced based on the sampling gate position of the second mode.
- The imaging method of claim 2, wherein reducing the scan area of the first mode based on the sampling gate position of the second mode comprises:acquiring the position of a sampling gate in a second mode;the scan area of the first mode is reduced such that the reduced scan area contains the sampling gate position.
- The imaging method of claim 1 or 2, wherein said reducing at least the scan area of the first mode comprises:receiving a scanning area selected by a user;the current scan area of the first mode is reduced to the selected scan area.
- The imaging method of claim 1, wherein said performing at least a first mode of scanning and a second mode of scanning on the target tissue comprises: a first mode of scanning, a second mode of scanning, and a third mode of scanning are performed on the target tissue.
- The imaging method of claim 5, wherein reducing at least the scan area of the first mode to increase at least the frame rate of the first mode image comprises: the scanning areas of the first mode and the third mode are reduced to increase the frame rates of the first mode image and the third mode image.
- The imaging method of claim 6, wherein reducing the scan area of the first and third modes comprises: the scan areas of the first and third modes are reduced based on the sampling gate position of the second mode.
- The imaging method of claim 7, wherein reducing the scan area of the first and third modes based on the sampling gate position of the second mode comprises:acquiring the position of a sampling gate in a second mode;and respectively reducing the scanning areas of the first mode and the third mode, wherein the reduced scanning areas of the first mode and the third mode comprise the sampling gate position.
- The imaging method of claim 7, wherein reducing the scan area of the first mode and the third mode comprises:receiving a scanning area selected by a user;and respectively reducing the current scanning areas of the first mode and the third mode into the selected scanning areas.
- The imaging method according to claim 4 or 9, further comprising: a sampling gate displaying an image of the target tissue before the reduction of the scanning area and a second pattern; the receiving the scanning area selected by the user comprises: receiving a region selected by a user on the displayed image as the selected scan region.
- The imaging method of claim 4, 9 or 10, further comprising: and when the scanning area selected by the user does not contain the sampling gate position of the second mode, performing alarm prompt.
- The imaging method of any of claims 1 to 11, further comprising: and amplifying and displaying the image of the target tissue with the reduced scanning area.
- The imaging method of claim 12, wherein said enlarging and displaying the image of the target tissue after the scan area reduction comprises: the image of the target tissue after the reduction of the scanning area is enlarged to be as large as the size of the image of the target tissue before the reduction of the scanning area.
- The imaging method according to claim 1, 2, 3, 4, 10, 11, 12, or 13, wherein the second mode is a D mode, and the first mode is a B mode or a C mode.
- The imaging method according to any one of claims 5 to 13, wherein the second mode, the first mode, and the third mode are a D mode, a B mode, and a C mode, respectively; or the second mode, the first mode and the third mode are respectively a D mode, a C mode and a B mode.
- An ultrasound imaging system, comprising:an ultrasound probe comprising an array of piezoelectric elements; the ultrasonic probe is used for transmitting ultrasonic waves to tissues for scanning and receiving echo signals of the scanning;the scanning controller is used for controlling the ultrasonic probe to scan and receive an echo signal of the scanning; wherein the scan controller controls the ultrasound probe to perform at least a first mode of scanning and a second mode of scanning on a target tissue, and controls the ultrasound probe to receive an echo signal of the scanning; the scanning controller also controls to reduce at least the scanning area of the first mode to increase at least the frame rate of the first mode image;a processor for generating at least a first mode image and a second mode image of a target tissue from the scanned echo signals;a display device for displaying the first mode image and the second mode image.
- The ultrasound imaging system of claim 16, wherein the scan controller reduces at least the scan area of the first mode based on the sampling gate position of the second mode.
- The ultrasound imaging system of claim 17, wherein the scan controller acquires a sample gate position for the second mode and reduces the scan area for the first mode such that the reduced scan area includes the sample gate position.
- The ultrasound imaging system of claim 16 or 17, wherein the scan controller receives a user selected scan area and reduces the first mode current scan area to the selected scan area.
- The ultrasound imaging system of claim 16, wherein the scan controller controls the ultrasound probe to perform a first mode of scanning, a second mode of scanning, and a third mode of scanning toward the target tissue.
- The ultrasound imaging system of claim 20, wherein the scan controller decreases the scan area of the first mode and the third mode to increase the frame rate of the first mode image and the third mode image.
- The ultrasound imaging system of claim 21, wherein the scan controller reduces the scan area for the first mode and the third mode based on the sampling gate position for the second mode.
- The ultrasound imaging system of claim 22, wherein the scan controller obtains a sampling gate position for the second mode and reduces the scan area for the first mode and the third mode, respectively, such that the reduced scan areas for the first mode and the third mode encompass the sampling gate position.
- The ultrasound imaging system of claim 22, wherein the scan controller receives a user selected scan area and reduces the first mode and third mode current scan areas, respectively, to the selected scan area.
- The ultrasound imaging system of claim 19 or 24, wherein: the display device displays a first mode image before the reduction of the scanning area and a sampling gate of a second mode; the processor receives a region selected by a user on the displayed first mode image as the selected scan region.
- The ultrasound imaging system of claim 19, 24 or 25, wherein the processor is further configured to provide an alarm prompt when the user selected scan area does not include a sample gate position of the second mode.
- The ultrasound imaging system of any of claims 16 to 26, wherein the processor zooms in for display the reduced scan area first mode image.
- The ultrasound imaging system of claim 27, wherein the processor enlarges the first mode image after the reduction of the scan area to be as large as a size of the first mode image before the reduction of the scan area.
- The ultrasound imaging system of claim 16, 17, 18, 19, 25, 26, 27 or 28, wherein the second mode is a D-mode and the first mode is a B-mode or a C-mode.
- The ultrasound imaging system of any of claims 20 to 28, wherein the second, first, third modes are D-mode, B-mode, C-mode, respectively; or the second mode, the first mode and the third mode are respectively a D mode, a C mode and a B mode.
- A computer-readable storage medium, characterized by comprising a program executable by a processor to implement the method of any one of claims 1 to 15.
- A method of ultrasound imaging in multiple modes, comprising:scanning a first scan region of a target tissue in a first mode;receiving an echo signal of scanning in a first mode, and obtaining a first mode image in a first scanning area of a target tissue according to the echo signal;displaying a first mode image in a first scanning area;receiving an instruction for entering a multiplexing mode and entering the multiplexing mode, wherein in the multiplexing mode:scanning a second scan region of the target tissue in the first mode, wherein the second scan region is smaller than the first scan region;receiving an echo signal of the scanning of the first mode, and obtaining a first mode image in a second scanning area of the target tissue according to the echo signal;displaying the first mode image in the second scanning area;scanning the target tissue in a second mode;receiving the scanned echo signal of the second mode, and obtaining a second mode image of the target tissue according to the echo signal;and displaying the second mode image.
- The method of claim 32, wherein displaying the first mode image within the second scan area comprises: and magnifying and displaying the first mode image in the second scanning area.
- The method of claim 33, wherein displaying the first mode image in the second scan area in enlargement comprises: and amplifying the first mode image in the second scanning area to the same size as the first mode image in the first scanning area and displaying the first mode image.
- A method according to any one of claims 32 to 34, wherein: the first scanning area includes the second scanning area.
- A method according to any one of claims 32 to 35, wherein: the first mode is a B mode or a C mode, and the second mode is a D mode.
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