CN111904474B - Intravascular ultrasound image processing method, intravascular ultrasound image processing device, intravascular ultrasound image processing system and readable storage medium - Google Patents
Intravascular ultrasound image processing method, intravascular ultrasound image processing device, intravascular ultrasound image processing system and readable storage medium Download PDFInfo
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Abstract
The invention discloses an intravascular ultrasound image processing method, an intravascular ultrasound image editing method, an intravascular ultrasound film reconstruction method, an intravascular ultrasound image processing device, an intravascular ultrasound image editing device, an intravascular ultrasound film reconstruction device, an intravascular ultrasound image processing system and a readable storage medium. According to a target longitudinal section instruction, determining a line data selection position for constructing a longitudinal section reconstruction image; selecting a target line data sequence from ultrasonic data acquired in the reciprocating motion process of the intravascular ultrasonic probe; dividing the target line data sequence according to the reciprocating characteristic information of the intravascular ultrasonic probe to obtain a target line data subsequence; and displaying each target line data subsequence as a longitudinal section reconstruction image, and displaying prompt information. The invention can effectively display the ultrasonic data acquired in the reciprocating motion process of the ultrasonic probe, namely, the problem of reconstructing the longitudinal section reconstruction image by pushing and pulling back and forth is solved.
Description
Technical Field
The present invention relates to the field of image processing technologies, and in particular, to an intravascular ultrasound image processing method, an intravascular ultrasound image editing method, an intravascular ultrasound cine reconstruction method, an intravascular ultrasound image processing device, an intravascular ultrasound image editing device, an intravascular ultrasound cine reconstruction device, an intravascular ultrasound image processing system, and a readable storage medium.
Background
According to' 2018 China expert consensus on intravascular ultrasound, automatic retraction is adopted to obtain more information such as lesion length and plaque volume of blood vessels, and partial special lesions can be manually retracted to carefully observe the lesions.
Regarding automatic retraction: the catheter is withdrawn at a constant speed through a high-precision constant-speed motor, the withdrawal speed is generally controlled to be 0.5-1.0 mm/s, the ultrasound host system carries out image reconstruction and display on the data acquired in real time in combination with the withdrawal speed, and the position of the probe can be accurately judged; the accuracy of the measurement information is high, and the method has better guiding significance for interventional therapy; repeatable and high in operability. For a site of clinical interest, the probe position can be changed by manual retraction, i.e., the retraction start, viewing the cross-sectional image in real time, or restarting automatic retraction imaging. However, the automatic retraction process cannot be stopped or suspended at will, otherwise the continuity and accuracy of the longitudinal section reconstruction image reconstruction are affected. After stopping, if the imaging of the proximal end of the blood vessel is needed, the automatic retraction system can only be started again, and the longitudinal section reconstruction image which is restarted to be retracted cannot be integrated into the longitudinal section reconstruction image which is stopped or suspended last time. In the process of withdrawing imaging, the continuity of the reconstruction of the longitudinal section reconstruction image and the accuracy of position information are influenced when the moving direction of the withdrawing device is changed.
With respect to manual withdrawal, it is generally only used to adjust the automatic withdrawal initiation point to facilitate careful observation of a portion of a particular lesion. When manual retraction is carried out, the retraction speed is not uniform, data are collected in a sequence mode, and longitudinal section reconstruction images cannot be reconstructed; or the reconstructed longitudinal section reconstructed images are only displayed in a sequence mode and cannot meet the clinical requirements of lesion length measurement, plaque volume measurement and the like.
It can be seen that the existing automatic retraction is electric, uniform and unidirectional; manual retraction does not ensure a uniform velocity and also requires the user to pull back in one direction, while hardware allows push and pull back, software does not provide for the reconstruction of overlapping images that are pushed and pulled back and forth, and thus the prior art does not in fact allow the user to push and pull back and forth to form the desired longitudinal reconstructed image.
In summary, how to effectively solve the problems of reconstructing a longitudinal section reconstructed image under the condition of back-and-forth push-and-pull and the like is a technical problem which needs to be solved urgently by a person skilled in the art at present.
Disclosure of Invention
The invention aims to provide an intravascular ultrasound image processing method, an intravascular ultrasound image editing method, an intravascular ultrasound cine reconstruction method, an intravascular ultrasound image processing device, an intravascular ultrasound image editing device, an intravascular ultrasound cine reconstruction device, an intravascular ultrasound image processing system and a readable storage medium, which can realize the back-and-forth push-and-pull reconstruction of longitudinal section reconstructed images and improve the reconstruction convenience of the longitudinal section reconstructed images.
In order to solve the technical problems, the invention provides the following technical scheme:
an intravascular ultrasound image processing method, comprising:
determining a line data selection position for constructing a longitudinal section reconstruction image according to the target longitudinal section instruction;
selecting a target line data sequence corresponding to the line data selection position from ultrasonic data acquired in the reciprocating motion process of the intravascular ultrasonic probe;
dividing the target line data sequence according to the reciprocating characteristic information of the intravascular ultrasonic probe to obtain target line data subsequences corresponding to all time periods respectively;
and displaying each target line data subsequence as the longitudinal section reconstruction image, and displaying prompt information corresponding to each time period in the longitudinal section reconstruction image.
Preferably, the dividing the target line data sequence according to the reciprocating characteristic information of the intravascular ultrasound probe to obtain target line data subsequences corresponding to each time period includes:
along the time sequence change of the collected ultrasonic image data, when the current change trend of the motion coordinate of the intravascular ultrasonic probe is changed to be opposite to the previous change trend, the change of the motion direction of the intravascular ultrasonic probe is judged;
recording the time sequence of all the change trend changes, and dividing all the time sequences of the ultrasonic image data into a plurality of time periods;
and dividing the target line data sequence by utilizing the time periods to obtain the target line data subsequence corresponding to each single movement direction.
Preferably, the displaying each target line data subsequence as the longitudinal sectional reconstructed image includes:
and according to the motion coordinate of the intravascular ultrasonic probe corresponding to the line data of each time sequence in each target line data subsequence, taking the motion coordinate as a coordinate axis, and displaying each target line data subsequence in the same display area in a covering manner to form the longitudinal section reconstruction image.
Preferably, the displaying each target line data subsequence in the same display area as the longitudinal sectional reconstructed image in a covering manner includes: and displaying the line data with the earliest or latest time sequence in the longitudinal section reconstruction image for the line data corresponding to the same motion coordinate in each target line data subsequence.
Preferably, the displaying each of the target line data subsequences as the longitudinal sectional reconstructed image includes:
and displaying each target line data subsequence in a plurality of display areas side by side to form the longitudinal section reconstruction image, wherein each display area displays a longitudinal section reconstruction sub-image corresponding to the target line data subsequence.
Preferably, the motion coordinates of the intravascular ultrasound probe are taken as coordinate axes, and the longitudinal section reconstruction sub-images are displayed side by side.
Preferably, displaying prompt information corresponding to each time segment in the longitudinal cross-sectional reconstructed image includes:
displaying prompt information corresponding to each target line data subsequence in the longitudinal section reconstruction image; the prompt message comprises at least one of the information of the motion starting time, the motion round, the motion direction and the motion starting position.
Preferably, the displaying each target line data subsequence as the longitudinal cross section reconstructed image, and displaying prompt information corresponding to each time period in the longitudinal cross section reconstructed image include:
and respectively displaying each target line data subsequence as a longitudinal section reconstruction sub-image with different picture display effects, and displaying each longitudinal section reconstruction sub-image as the longitudinal section reconstruction image in a combined manner, wherein the different picture display effects are used as the prompt information.
Preferably, the picture display effect includes a display color.
After being applied to the intravascular ultrasound image processing method, the intravascular ultrasound image editing method carries out at least one of the following editing operations on the longitudinal section reconstruction image according to an editing instruction:
selecting a longitudinal section reconstruction sub-image corresponding to any time period to confirm display or delete display;
adjusting the starting time sequence and/or the ending time sequence of the display of the longitudinal section reconstruction sub-image corresponding to any time period;
and generating an edited longitudinal section reconstruction image according to the confirmation instruction.
According to the longitudinal section reconstructed image edited by the intravascular ultrasound image editing method, all cross section image frames corresponding to time sequences are obtained and reconstructed into the intravascular ultrasound film.
An intravascular ultrasound image processing apparatus comprising:
the line data selection position determining module is used for determining a line data selection position for constructing a longitudinal section reconstruction image according to the target longitudinal section instruction;
the target line data sequence selection module is used for selecting a target line data sequence corresponding to the line data selection position from ultrasonic data acquired in the reciprocating motion process of the intravascular ultrasonic probe;
the sequence dividing module is used for dividing the target line data sequence according to the reciprocating characteristic information of the intravascular ultrasonic probe to obtain target line data subsequences corresponding to all time periods respectively;
and the longitudinal section reconstruction image display module is used for displaying each target line data subsequence as a longitudinal section reconstruction image and displaying prompt information corresponding to each time period in the longitudinal section reconstruction image.
An intravascular ultrasound image editing device, based on the intravascular ultrasound image processing device, further comprising:
an editing module, configured to perform at least one of the following editing operations on the longitudinal section reconstructed image according to an editing instruction:
selecting a longitudinal section reconstruction sub-image corresponding to any time period to confirm display or delete display;
adjusting the starting time sequence and/or the ending time sequence of the display of the longitudinal section reconstruction sub-image corresponding to any time period;
and generating an edited longitudinal section reconstruction image according to the confirmation instruction.
An intravascular ultrasound cine reconstruction device comprising:
and the film reconstruction module is used for acquiring all cross section image frames corresponding to the time sequence according to the longitudinal section reconstruction image edited by the intravascular ultrasound image editing method and reconstructing the cross section image frames into the intravascular ultrasound film.
An intravascular ultrasound image processing system comprising:
an intravascular ultrasound image processing device, an input device, and a display;
the input device is used for receiving a user operation instruction;
the intravascular ultrasound image processing device is used for executing the step of the intravascular ultrasound image processing method, or executing the step of the intravascular ultrasound image editing method, or executing the step of the intravascular ultrasound film reconstruction method;
and the display is used for displaying the longitudinal section reconstruction image and prompt information.
A readable storage medium having stored thereon a computer program which, when being executed by a processor, carries out the steps of the intravascular ultrasound image processing method as described above, or carries out the steps of the intravascular ultrasound image editing method as described above, or carries out the steps of the intravascular ultrasound cine reconstruction method as described above.
By applying the method provided by the embodiment of the invention, the line data selection position for constructing the longitudinal section reconstruction image is determined according to the target longitudinal section instruction; selecting a target line data sequence corresponding to the line data selection position from ultrasonic data acquired in the reciprocating motion process of the intravascular ultrasonic probe; dividing the target line data sequence according to the reciprocating characteristic information of the intravascular ultrasonic probe to obtain target line data subsequences corresponding to each time period; and displaying each target line data subsequence as a longitudinal section reconstruction image, and displaying prompt information corresponding to each time period in the longitudinal section reconstruction image.
According to the method, a line data selection position for constructing the longitudinal section reconstruction image is determined firstly according to a target longitudinal section instruction. And then, selecting a target line data sequence corresponding to the line data selection position from the ultrasonic data acquired in the reciprocating motion process of the intravascular ultrasonic probe. Next, the target line data sequence may be divided according to the reciprocating motion characteristic information of the intravascular ultrasound probe to obtain target line data subsequences corresponding to each time period. And displaying the sub-data of each target line data as a longitudinal section reconstruction image, and displaying prompt information corresponding to each time period. Therefore, in the method, the ultrasonic data acquired in the reciprocating motion process of the ultrasonic probe can be effectively displayed, namely the problem of reconstructing the longitudinal section reconstruction image by pushing and pulling back and forth is solved.
Accordingly, embodiments of the present invention further provide an intravascular ultrasound cine reconstruction method, an intravascular ultrasound image processing device, an intravascular ultrasound image editing device, an intravascular ultrasound cine reconstruction device, an intravascular ultrasound image processing system, and a readable storage medium corresponding to the intravascular ultrasound image processing method, which have the above technical effects and are not described herein again.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flowchart illustrating an implementation of a method for processing an intravascular ultrasound image according to an embodiment of the present invention;
FIG. 2 is a schematic view of coverage of a longitudinal-section reconstructed image according to an embodiment of the present disclosure;
FIG. 3 is a schematic diagram of a longitudinal reconstructed image according to an embodiment of the present invention;
FIG. 4 is an integrated schematic diagram of a longitudinal-section reconstructed image according to an embodiment of the present disclosure;
FIG. 5 is a schematic diagram of an ultrasound movie playback according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of an intravascular ultrasound image processing device according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of an intravascular ultrasound image processing system according to an embodiment of the present invention.
Detailed Description
In order that those skilled in the art will better understand the disclosure, reference will now be made in detail to the embodiments of the disclosure as illustrated in the accompanying drawings. It should be apparent that the described embodiments are only some embodiments of the present invention, and not all 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 invention.
Referring to fig. 1, fig. 1 is a flowchart illustrating a method for processing an intravascular ultrasound image according to an embodiment of the present invention, the method including the following steps:
s101, determining a line data selection position for constructing a longitudinal section reconstruction image according to a target longitudinal section instruction.
The target longitudinal section instruction can specifically carry relevant information of a line data selection position for constructing a longitudinal section reconstruction image. The outgoing line data selection position can be determined based on the relevant information.
For example, a user selects an interception line (i.e., a longitudinal section serial number) in a cross-sectional image, which belongs to a more conventional target longitudinal section instruction, and the position of the interception line is a line data selection position.
S102, selecting a target line data sequence corresponding to the line data selection position from the ultrasonic data acquired in the reciprocating motion process of the intravascular ultrasonic probe.
Wherein, the reciprocating motion process of the intravascular ultrasonic probe means that the intravascular ultrasonic probe moves back and forth, namely, the motion direction is changed in the motion process.
In the method, the time sequence corresponding to the ultrasonic data of each group of the intravascular ultrasonic probe, the motion coordinate of the intravascular ultrasonic probe and the like can be directly read from the storage medium.
The ultrasonic data can be directly transmitted/written by other equipment, and can also be obtained by sorting the data acquired by the intravascular ultrasonic probe.
By way of example: a pulse counter can be arranged in a withdrawing device corresponding to the intravascular ultrasonic probe in advance, and pulse counting is obtained through the pulse counter when ultrasonic data are acquired in the withdrawing process of the withdrawing device. It should be noted that, since in the embodiment of the present invention, the positioning is performed based on the pulse count (i.e., the motion coordinate of the intravascular ultrasound probe is determined), in the embodiment, there is no need to define the motion state of the retraction device, that is, the retraction device may change the motion direction and change the motion speed during the retraction process. That is, in the present embodiment, the position location is no longer dependent on the constant retracting speed (fixed direction) of the retracting device. Of course, it is also possible to refer to the prior art, and add other hardware to the retracting device to determine the motion coordinate, and the implementation of the present solution is not limited to the pulse counter.
Specifically, a target line data sequence corresponding to a line data selection position may be selected from the ultrasound data. When the user selects the intercepting line from the human-computer interaction interface, the equipment can correspondingly obtain the target line data of the position in each frame of image, the corresponding time sequence, the motion coordinate of the intravascular ultrasonic probe and the like from the intercepting position, and the set of all the target line data is the target line data sequence. That is, the target line data sequence is selected from the ultrasound data corresponding to the reciprocation process, and thus the target line data sequence corresponds to the reciprocation process.
And S103, dividing the target line data sequence according to the reciprocating motion characteristic information of the intravascular ultrasonic probe to obtain target line data subsequences corresponding to all time periods respectively.
The reciprocating characteristic information is used for recording the motion characteristics of the reciprocating motion of the intravascular ultrasonic probe, such as direction change, a timestamp corresponding to the direction change, motion speed and other information.
The target line data sequence can be divided based on the reciprocating motion characteristic information to obtain target line data subsequences corresponding to all time periods respectively. The time period may be a specific start-stop time corresponding to a single motion direction. For example, if the target line data corresponds to one round trip, the target line data sub-sequence may be specified as 2, one for forward and one for backward.
Specifically, the sequence division process may specifically include:
step one, along the time sequence change of the collected ultrasonic image data, when the current change trend of the motion coordinate of the intravascular ultrasonic probe is changed to be opposite to the previous change trend, the change of the motion direction of the intravascular ultrasonic probe is judged;
recording the time sequence of all the change trend changes, and dividing all the time sequences of the ultrasonic image data into a plurality of time periods;
and thirdly, dividing the target line data sequence by using a plurality of time periods to obtain a target line data subsequence corresponding to each single movement direction.
For convenience of description, the above three steps will be described in combination.
First, the time sequence change of the collected ultrasonic image data is verified, and the time when the movement direction changes is found out. Specifically, it may be determined that the movement direction of the intravascular ultrasound probe is changed when the current trend of the movement coordinates of the intravascular ultrasound probe changes to be opposite to the previous trend.
Recording the timing of all trend changes, the entire sequence of ultrasound image data can be divided into time segments based on the timing. And then, dividing the target line data sequence by using a plurality of times to obtain a target line data subsequence corresponding to each single movement direction.
And S104, displaying each target line data subsequence as a longitudinal section reconstruction image, and displaying prompt information corresponding to each time period in the longitudinal section reconstruction image.
After each target line data subsequence is obtained, each target line data subsequence can be displayed as a longitudinal section reconstruction image, and prompt information corresponding to each time period is displayed in the longitudinal section reconstruction image.
The prompt information may be a time stamp.
Wherein displaying each target line data subsequence as a longitudinal sectional reconstructed image comprises: and according to the motion coordinate of the intravascular ultrasonic probe corresponding to the line data of each time sequence in each target line data subsequence, taking the motion coordinate as a coordinate axis, and displaying each target line data subsequence in the same display area in a covering manner to form a longitudinal section reconstruction image. That is, the motion coordinates of the line data are used as coordinate axes, and the respective target line data subsequences are displayed in the same display area as the vertical cross-sectional reconstructed image in an overlaid manner. (the principle and process of sequentially arranging and displaying a plurality of time series line data into a longitudinal section reconstruction image belong to the conventional technical means in the field and are not repeated here)
Specifically, the method for displaying each target line data subsequence in a same display area in a covering manner as a longitudinal section reconstructed image includes: and displaying the line data with the earliest or latest time sequence in the vertical section reconstruction image for the line data corresponding to the same motion coordinate in each target line data subsequence.
For example, as shown in fig. 2, the longitudinal-section reconstructed image includes longitudinal-section reconstructed sub-images constructed by line data subsequences corresponding to four motion rounds P1, P2, P3, and P4, where the sequentially corresponding motion directions (the arrangement and display order of the line data) are respectively P1 from top to bottom, P2 from bottom to top, P3 from top to bottom, and P4 from bottom to top, and the overlapping portions of the four reconstructed images display corresponding segments in the longitudinal-section reconstructed sub-image corresponding to P4. The time period of the probe keeping a single movement direction is divided into one movement round, the movement direction is converted into the next movement round, and the counting is sequentially increased.
As another optional display mode, displaying each target line data subsequence as a longitudinal cross-section reconstructed image may specifically be: and displaying all the target line data subsequences in a plurality of display areas side by side to form a longitudinal section reconstruction image, wherein each display area displays a longitudinal section reconstruction sub-image corresponding to one target line data subsequence. That is, the plurality of target line data subsequences are respectively displayed correspondingly as longitudinal section reconstruction sub-images for comparison. Specifically, the respective longitudinal sectional reconstructed sub-images are displayed side by side with the motion coordinate of the intravascular ultrasound probe as a coordinate axis (not shown in the figure).
The method for displaying the prompt information corresponding to each time period in the longitudinal section reconstruction image comprises the following steps: displaying prompt information corresponding to each target line data subsequence in the longitudinal section reconstruction image; the prompt message comprises at least one of the motion starting time, the motion round, the motion direction and the motion starting position. That is, at least one of the movement start time, the movement turn, the movement direction, and the movement start position corresponding to each target line data subsequence can be displayed in the displayed longitudinal sectional reconstructed image.
Preferably, the displaying each target line data subsequence as a longitudinal sectional reconstructed image, and displaying prompt information corresponding to each time period in the longitudinal sectional reconstructed image includes: and respectively displaying each target line data subsequence as a longitudinal section reconstruction sub-image with different picture display effects, and displaying each longitudinal section reconstruction sub-image as a longitudinal section reconstruction image in a combined manner, wherein the different picture display effects are used as prompt information. Wherein, the picture display effect comprises display color. That is, when displaying each target line data subsequence as a longitudinal cross-section reconstructed sub-image, different display colors can be displayed for different target line data subsequences for the convenience of user distinction (refer to different depth display effects in fig. 2 to 5).
By applying the method provided by the embodiment of the invention, the line data selection position for constructing the longitudinal section reconstruction image is determined according to the target longitudinal section instruction; selecting a target line data sequence corresponding to the line data selection position from ultrasonic data acquired in the reciprocating motion process of the intravascular ultrasonic probe; dividing the target line data sequence according to the reciprocating characteristic information of the intravascular ultrasonic probe to obtain target line data subsequences corresponding to each time period; and displaying each target line data subsequence as a longitudinal section reconstruction image, and displaying prompt information corresponding to each time period in the longitudinal section reconstruction image.
According to the method, a line data selection position for constructing the longitudinal section reconstruction image is determined firstly according to a target longitudinal section instruction. And then, selecting a target line data sequence corresponding to the line data selection position from the ultrasonic data acquired in the reciprocating motion process of the intravascular ultrasonic probe. Then, according to the reciprocating characteristic information of the intravascular ultrasound probe, the target line data sequence can be divided to obtain target line data subsequences corresponding to all time periods. And displaying the sub-data of each target line data as a longitudinal section reconstruction image, and displaying prompt information corresponding to each time period. Therefore, in the method, the ultrasonic data acquired in the reciprocating motion process of the ultrasonic probe can be effectively displayed, namely the problem of reconstructing the longitudinal section reconstruction image by pushing and pulling back and forth is solved.
Based on the intravascular ultrasound image processing method described in the above embodiment, the embodiment of the present invention further provides an intravascular ultrasound image editing method based on the intravascular ultrasound image processing method. Specifically, after the intravascular ultrasound image processing method, the intravascular ultrasound image editing method performs at least one of the following editing operations on the longitudinal-section reconstructed image according to an editing instruction:
editing operation 1: selecting a longitudinal section reconstruction sub-image corresponding to any time period to confirm display or delete display;
editing operation 2: adjusting the starting time sequence and/or the ending time sequence of the display of the longitudinal section reconstruction sub-image corresponding to any time period;
editing operation 3: and generating an edited longitudinal section reconstruction image according to the confirmation instruction.
In the editing operation 1, that is, an instruction about reconstruction input by a user or other equipment, the reconstruction instruction specifies which time period or time periods the corresponding longitudinal section reconstruction sub-image is used for confirmation display or deletion.
In particular, if the designated time period is plural, the display priority may be determined based on the instruction; and then reconstructing a sub-image of the corresponding longitudinal section by combining the display priority according to the movement direction and the movement position corresponding to each time period. For example, high priority is displayed at the top level and low priority is displayed at the bottom level. For example, the following steps are carried out: if two or more time periods exist, for the overlapped part, the overlapped part can be directly displayed in a mode that the latest time period covers the old time period, and the display object of the overlapped part can be determined according to the selection of a user; for non-overlapping portions, the display may be direct. As shown in fig. 3, is an integrated display effect of four movement directions, i.e. 4 sub-images.
For the editing operation 2, the display starting time sequence and/or the display ending time sequence of the sub-images can be reconstructed according to the longitudinal section corresponding to a certain time period; that is, the start position or the end position of the display of the longitudinal sectional reconstruction sub-image is selected, or the start position and the end position are specified. The operation can intercept the interested image segment for reservation, and can be used together with other operations to complete the editing effects of image screening, splicing and the like.
In editing operation 3, after the user edits, an edited longitudinal cross-sectional reconstructed image is generated based on the confirmation instruction.
After the longitudinal section reconstruction image is obtained, the following steps can be further executed:
step one, storing a longitudinal section reconstruction image and adding a page identifier;
and step two, receiving a display instruction, and displaying the longitudinal section reconstructed image corresponding to the target page identification specified by the display instruction.
Wherein, the page identifier may be specifically Pn (n is a positive integer) as shown in fig. 2. And storing the longitudinal section reconstructed image, and after adding the page identifier, displaying the corresponding longitudinal section reconstructed image based on the target page identifier in the display request when receiving the display request. That is, the user can perform single-page display and multi-page superposition display by setting and displaying the corresponding page identifier. For example, when a user wants to display only one page, a certain page to be displayed is selected in the display setting; if the user wants to display multiple pages, the user can select some pages to be displayed in the display setting, and can also specify the display order, namely which page is the top layer and which page is the bottom layer, so that the display can be overlaid according to the display requirement when displaying. When the longitudinal section reconstructed images are played back or previewed, the interface displays page identifiers of all the longitudinal section reconstructed images, and the system can set default to select a certain page, such as the longitudinal section reconstructed image reconstructed at the 4 th time in the above example, and integrate the longitudinal section reconstructed images at the 4 th time and the previous images. The system can also receive user input, such as button operation, mouse operation or touch screen operation, quickly switch and select the longitudinal section reconstruction image of any page, integrate the page and previous images and finally display the images. As shown in FIG. 4, the integration effects of P1, P2, and P3 are selected.
Based on the intravascular ultrasound image processing method described in the above embodiment, the intravascular ultrasound film reconstruction method is further provided on the basis of the intravascular ultrasound image editing method in the embodiment of the present invention. Specifically, according to the longitudinal section reconstructed image edited by the intravascular ultrasound image editing method, all cross section image frames corresponding to the time sequence are acquired and reconstructed into an intravascular ultrasound movie. (similarly, all corresponding time series of cross-sectional image frames can also be reconstructed as intravascular three-dimensional ultrasound images using principles of the prior art.)
Specifically, the start frame and the end frame of the ultrasound film can be positioned in the image frames corresponding to the start time sequence and the end time sequence of the longitudinal section reconstructed image; updating the starting frame and/or the ending frame according to an intercepting instruction executed on the longitudinal section reconstruction image; and intercepting the ultrasonic film from the starting frame to the ending frame according to the confirmation instruction, and playing and/or storing the intercepted ultrasonic film.
Specifically, the intercepting instruction that can be executed once includes:
selecting a time period in the longitudinal section reconstruction image, and correspondingly determining a starting frame and an ending frame according to the starting time sequence and the ending time sequence of the time period;
or, reselecting the time sequence of the starting frame or the time sequence of the ending frame in the longitudinal sectional reconstruction image, and correspondingly determining the starting frame or the ending frame.
After the ultrasonic film is constructed, dynamic playing can be realized. The specific playing process may specifically include: acquiring playing parameters by utilizing the longitudinal section reconstruction image; and playing the ultrasonic film by using the playing parameters. Wherein, utilize the vertical section to rebuild the image and obtain the broadcast parameter, include: determining a current frame by utilizing the longitudinal section reconstruction image; setting the current frame as an image playing initial frame, and determining the playing direction by using the reconstruction direction of the longitudinal section reconstruction image.
By way of example: the system can record the last switching selection as a setting page of the longitudinal section reconstruction image, and automatically select the page for image integration when playing back or previewing next time. When the longitudinal section reconstruction image is played, the start frame and the end frame (blood vessel cross section image) are set for playing. Specifically, the system can accept the setting of the beginning and the end frames by the user to support different playing modes. The playing modes include, but are not limited to, the following modes:
the method a: automatic playing: the default starting frame is 1 and the last frame is the last frame of the selected page.
Mode b: and (3) single page playing: the system accepts the user's selection of the currently playing page whose leading and trailing frames are determined to be the leading and trailing frames of the play.
Mode c: and long-axis current frame playing: and selecting and setting the current frame on the longitudinal section reconstruction image, and starting playing from the current frame. As shown in fig. 5, the integrated effect map is based on "select P3 integrated effect map" in fig. 4, if the current frame line is a, then at P1 page, play is started from top to bottom; if the current frame line is B, the position is actually the P1, P2, P3 integration effect, and the final effect is based on the P3 frame line effect, so it is considered that B is on the P3 page and starts to play from top to bottom.
Corresponding to the above method embodiment, an intravascular ultrasound image processing device is further provided in an embodiment of the present invention, and the intravascular ultrasound image processing device described below and the intravascular ultrasound image processing method described above may be referred to in a corresponding manner.
Referring to fig. 6, the intravascular ultrasound image processing device includes the following modules:
the line data selection position determining module 101 is used for determining a line data selection position for constructing a longitudinal section reconstruction image according to the target longitudinal section instruction;
a target line data sequence selection module 102, configured to select a target line data sequence corresponding to a line data selection position from ultrasound data acquired during a reciprocating motion process of the intravascular ultrasound probe;
the sequence dividing module 103 is configured to divide the target line data sequence according to the reciprocating motion characteristic information of the intravascular ultrasound probe to obtain target line data subsequences corresponding to each time period;
and a longitudinal section reconstructed image reconstruction and display module 104, configured to display each target line data subsequence as a longitudinal section reconstructed image, and display prompt information corresponding to each time period in the longitudinal section reconstructed image.
By applying the device provided by the embodiment of the invention, the line data selection position for constructing the longitudinal section reconstruction image is determined according to the target longitudinal section instruction; selecting a target line data sequence corresponding to the line data selection position from ultrasonic data acquired in the reciprocating motion process of the intravascular ultrasonic probe; dividing the target line data sequence according to the reciprocating characteristic information of the intravascular ultrasonic probe to obtain target line data subsequences corresponding to all time periods respectively; and displaying each target line data subsequence as a longitudinal section reconstruction image, and displaying prompt information corresponding to each time period in the longitudinal section reconstruction image.
According to the device, a line data selection position for constructing a longitudinal section reconstruction image is determined firstly according to a target longitudinal section instruction. And then, selecting a target line data sequence corresponding to the line data selection position from the ultrasonic data acquired in the reciprocating motion process of the intravascular ultrasonic probe. Next, the target line data sequence may be divided according to the reciprocating motion characteristic information of the intravascular ultrasound probe to obtain target line data subsequences corresponding to each time period. And displaying the sub-data of each target line data as a longitudinal section reconstruction image, and displaying prompt information corresponding to each time period. Therefore, in the device, the ultrasonic data acquired in the reciprocating motion process of the ultrasonic probe can be effectively displayed, and the problem of reconstructing the longitudinal section reconstruction image by pushing and pulling back and forth is solved.
In a specific embodiment of the present invention, dividing a target line data sequence according to reciprocating characteristic information of an intravascular ultrasound probe to obtain target line data subsequences corresponding to respective time periods includes:
along the time sequence change of the collected ultrasonic image data, when the current change trend of the motion coordinate of the intravascular ultrasonic probe is changed to be opposite to the previous change trend, the change of the motion direction of the intravascular ultrasonic probe is judged;
recording the time sequence of all the change trend changes, and dividing all the time sequences of the ultrasonic image data into a plurality of time periods;
and dividing the target line data sequence by using a plurality of time periods to obtain a target line data subsequence corresponding to each single movement direction.
In one embodiment of the present invention, displaying each target line data subsequence as a longitudinal sectional reconstructed image comprises:
and according to the motion coordinate of the intravascular ultrasonic probe corresponding to the line data of each time sequence in each target line data subsequence, taking the motion coordinate as a coordinate axis, and displaying each target line data subsequence in the same display area in a covering manner to form a longitudinal section reconstruction image.
In an embodiment of the present invention, displaying each target line data subsequence in a same display area as a longitudinal reconstructed image in an overlaid manner includes: and displaying the line data with the earliest or latest time sequence in the longitudinal section reconstruction image for the line data corresponding to the same motion coordinate in each target line data subsequence.
In one embodiment of the present invention, displaying each target line data subsequence as a longitudinal sectional reconstructed image includes:
and displaying all the target line data subsequences in a plurality of display areas side by side to form a longitudinal section reconstruction image, wherein each display area displays a longitudinal section reconstruction sub-image corresponding to one target line data subsequence.
In one embodiment of the invention, the motion coordinates of the intravascular ultrasound probe are taken as coordinate axes, and the longitudinal section reconstruction sub-images are displayed side by side.
In a specific embodiment of the present invention, displaying a prompt message corresponding to each time segment in a longitudinal sectional reconstructed image includes:
displaying prompt information corresponding to each target line data subsequence in the longitudinal section reconstruction image; the prompt message comprises at least one of the motion starting time, the motion round, the motion direction and the motion starting position.
In a specific embodiment of the present invention, displaying each target line data subsequence as a longitudinal cross-sectional reconstructed image, and displaying prompt information corresponding to each time period in the longitudinal cross-sectional reconstructed image, includes:
and respectively displaying each target line data subsequence as a longitudinal section reconstruction sub-image with different picture display effects, and displaying each longitudinal section reconstruction sub-image as a longitudinal section reconstruction image in a combined manner, wherein the different picture display effects are used as prompt information.
In one embodiment of the present invention, the picture display effect includes a display color.
Corresponding to the above method embodiments, the present invention further provides an intravascular ultrasound image editing apparatus, and the intravascular ultrasound image editing apparatus described below, the intravascular ultrasound image editing method described above, and the intravascular ultrasound image processing apparatus may be referred to in a corresponding manner.
The device, on the basis of the intravascular ultrasound image processing device, further comprises:
the editing module is used for executing at least one of the following editing operations on the longitudinal section reconstruction image according to the editing instruction:
selecting a longitudinal section reconstruction sub-image corresponding to any time period to confirm display or delete display;
adjusting the starting time sequence and/or the ending time sequence of the display of the longitudinal section reconstruction sub-image corresponding to any time period;
and generating an edited longitudinal section reconstruction image according to the confirmation instruction.
Corresponding to the above method embodiment, the embodiment of the present invention further provides an intravascular ultrasound cine reconstruction device, and the intravascular ultrasound cine reconstruction device described below, the intravascular ultrasound cine reconstruction method described above, and the intravascular ultrasound image editing device may be referred to in a corresponding manner.
The device comprises: and the film reconstruction module is used for acquiring all cross section image frames corresponding to the time sequence according to the longitudinal section reconstruction image edited by the intravascular ultrasound image editing method and reconstructing the cross section image frames into the intravascular ultrasound film.
Corresponding to the above method embodiments, the present invention further provides an intravascular ultrasound image processing system, and the intravascular ultrasound image processing system described below and the intravascular ultrasound image processing method described above may be referred to in correspondence.
Referring to fig. 7, the intravascular ultrasound image processing system includes:
an input device 301, an intravascular ultrasound image processing device 302, and a display 302;
the input device is used for receiving a user operation instruction;
an intravascular ultrasound image processing device for executing the steps of the intravascular ultrasound image processing method, or executing the steps of the intravascular ultrasound image editing method, or executing the steps of the intravascular ultrasound cine reconstruction method;
and the display is used for displaying the long-axis reconstruction image.
Corresponding to the above method embodiment, the present invention further provides a readable storage medium, and the readable storage medium described below and the intravascular ultrasound image processing method, the intravascular ultrasound image editing method, and the intravascular ultrasound cine-reconstruction method described above may be referred to in correspondence.
A readable storage medium having stored thereon a computer program which, when being executed by a processor, carries out the steps of the intravascular ultrasound image processing method as described above, or carries out the steps of the intravascular ultrasound image editing method as described above, or carries out the steps of the intravascular ultrasound cine reconstruction method as described above.
The readable storage medium may be a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and various other readable storage media capable of storing program codes.
Those of skill would further appreciate that the various illustrative components and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the components and steps of the various examples have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
Claims (15)
1. An intravascular ultrasound image processing method, comprising:
determining a line data selection position for constructing a longitudinal section reconstruction image according to the target longitudinal section instruction;
selecting a target line data sequence corresponding to the line data selection position from ultrasonic data acquired in the reciprocating motion process of the intravascular ultrasonic probe;
dividing the target line data sequence according to the reciprocating characteristic information of the intravascular ultrasonic probe to obtain target line data subsequences corresponding to all time periods respectively;
displaying each target line data subsequence as the longitudinal section reconstruction image, and displaying prompt information corresponding to each time period in the longitudinal section reconstruction image;
dividing the target line data sequence according to the reciprocating characteristic information of the intravascular ultrasonic probe to obtain target line data subsequences corresponding to each time period, wherein the target line data subsequences comprise:
along the time sequence change of the collected ultrasonic image data, when the current change trend of the motion coordinate of the intravascular ultrasonic probe is changed to be opposite to the previous change trend, judging that the motion direction of the intravascular ultrasonic probe is changed;
recording the time sequence of all change trend changes, and dividing all time sequences of the ultrasonic image data into a plurality of time periods;
and dividing the target line data sequence by utilizing the time periods to obtain the target line data subsequence corresponding to each single movement direction.
2. The intravascular ultrasound image processing method according to claim 1, wherein the displaying each of the target line data sub-sequences as the longitudinal sectional reconstructed image comprises:
and according to the motion coordinate of the intravascular ultrasonic probe corresponding to the line data of each time sequence in each target line data subsequence, taking the motion coordinate as a coordinate axis, and displaying each target line data subsequence in the same display area in a covering manner to form the longitudinal section reconstruction image.
3. The intravascular ultrasound image processing method according to claim 2, wherein the displaying each of the target line data subsequences as the longitudinal cross-sectional reconstructed image in an overlay manner in a same display area comprises: and displaying the line data with the earliest or latest time sequence in the longitudinal section reconstruction image for the line data corresponding to the same motion coordinate in each target line data subsequence.
4. The intravascular ultrasound image processing method according to claim 1, wherein the displaying each of the target line data sub-sequences as the longitudinal sectional reconstructed image includes:
and displaying each target line data subsequence in a plurality of display areas side by side to form the longitudinal section reconstruction image, wherein each display area displays a longitudinal section reconstruction sub-image corresponding to the target line data subsequence.
5. The intravascular ultrasound image processing method according to claim 4, wherein the motion coordinates of the intravascular ultrasound probe are taken as coordinate axes, and the longitudinal-section reconstructed sub-images are displayed side by side.
6. The intravascular ultrasound image processing method according to claim 1, wherein displaying a prompt message corresponding to each of the time periods in the longitudinal cross-sectional reconstructed image includes:
displaying prompt information corresponding to each target line data subsequence in the longitudinal section reconstruction image; the prompt message comprises at least one of the information of the motion starting time, the motion round, the motion direction and the motion starting position.
7. The intravascular ultrasound image processing method according to claim 1, wherein the displaying each of the target line data sub-sequences as the longitudinal cross-sectional reconstructed image and displaying prompt information corresponding to each of the time periods in the longitudinal cross-sectional reconstructed image includes:
and respectively displaying each target line data subsequence as a longitudinal section reconstruction sub-image with different image display effects, and displaying each longitudinal section reconstruction sub-image as a longitudinal section reconstruction image in a combined manner, wherein different image display effects are used as the prompt information.
8. The intravascular ultrasound image processing method of claim 7, wherein the picture display effect includes a display color.
9. An intravascular ultrasound image editing method, applied to the intravascular ultrasound image processing method according to any one of claims 1 to 8, wherein at least one of the following editing operations is performed on the longitudinal section reconstructed image according to an editing instruction:
selecting a longitudinal section reconstruction sub-image corresponding to any time period to confirm display or delete display;
adjusting the starting time sequence and/or the ending time sequence of the display of the longitudinal section reconstruction sub-image corresponding to any time period;
and generating an edited longitudinal section reconstruction image according to the confirmation instruction.
10. An intravascular ultrasound cine reconstruction method, characterized in that according to the longitudinal section reconstructed image edited by the intravascular ultrasound image editing method according to claim 9, all the corresponding time sequence cross section image frames are obtained and reconstructed into an intravascular ultrasound cine.
11. An intravascular ultrasound image processing apparatus, comprising:
the line data selection position determining module is used for determining a line data selection position for constructing a longitudinal section reconstruction image according to the target longitudinal section instruction;
the target line data sequence selection module is used for selecting a target line data sequence corresponding to the line data selection position from ultrasonic data acquired in the reciprocating motion process of the intravascular ultrasonic probe;
the sequence dividing module is used for dividing the target line data sequence according to the reciprocating motion characteristic information of the intravascular ultrasonic probe to obtain target line data subsequences corresponding to each time period;
the longitudinal section reconstructed image reconstruction display module is used for displaying each target line data subsequence as a longitudinal section reconstructed image and displaying prompt information corresponding to each time period in the longitudinal section reconstructed image;
wherein, the dividing the target line data sequence according to the reciprocating characteristic information of the intravascular ultrasound probe to obtain target line data subsequences corresponding to each time period respectively comprises:
along the time sequence change of the collected ultrasonic image data, when the current change trend of the motion coordinate of the intravascular ultrasonic probe is changed to be opposite to the previous change trend, judging that the motion direction of the intravascular ultrasonic probe is changed;
recording the time sequence of all the change trend changes, and dividing all the time sequences of the ultrasonic image data into a plurality of time periods;
and dividing the target line data sequence by utilizing the time periods to obtain the target line data subsequence corresponding to each single movement direction.
12. An intravascular ultrasound image editing apparatus, based on the intravascular ultrasound image processing apparatus according to claim 11, further comprising:
the editing module is used for executing at least one of the following editing operations on the longitudinal section reconstruction image according to an editing instruction:
selecting a longitudinal section reconstruction sub-image corresponding to any time period to confirm display or delete display;
adjusting the starting time sequence and/or the ending time sequence of the display of the longitudinal section reconstruction sub-image corresponding to any time period;
and generating an edited longitudinal section reconstruction image according to the confirmation instruction.
13. An intravascular ultrasound cine reconstruction device comprising:
a film reconstruction module, configured to obtain all cross-section image frames corresponding to a time sequence according to the longitudinal-section reconstructed image edited by the intravascular ultrasound image editing method according to claim 9, and reconstruct the cross-section image frames into an intravascular ultrasound film.
14. An intravascular ultrasound image processing system, comprising:
an intravascular ultrasound image processing device, an input device, and a display;
the input device is used for receiving a user operation instruction;
the intravascular ultrasound image processing device for performing the steps of the intravascular ultrasound image processing method of any one of claims 1 to 8, or performing the steps of the intravascular ultrasound image editing method of claim 9, or performing the steps of the intravascular ultrasound cine-reconstruction method of claim 10;
and the display is used for displaying the longitudinal section reconstruction image and prompt information.
15. A readable storage medium, characterized in that the readable storage medium has stored thereon a computer program which, when being executed by a processor, carries out the steps of the intravascular ultrasound image processing method according to any one of claims 1 to 8, or the steps of the intravascular ultrasound image editing method according to claim 9, or the steps of the intravascular ultrasound cine reconstruction method according to claim 10.
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| US5361768A (en) * | 1992-06-30 | 1994-11-08 | Cardiovascular Imaging Systems, Inc. | Automated longitudinal position translator for ultrasonic imaging probes, and methods of using same |
| US7397935B2 (en) * | 2004-05-10 | 2008-07-08 | Mediguide Ltd. | Method for segmentation of IVUS image sequences |
| EP2484289B1 (en) * | 2009-09-30 | 2021-12-01 | Terumo Kabushiki Kaisha | Diagnostic imaging apparatus and program for controlling same |
| US20120283569A1 (en) * | 2011-05-04 | 2012-11-08 | Boston Scientific Scimed, Inc. | Systems and methods for navigating and visualizing intravascular ultrasound sequences |
| JP6192846B2 (en) * | 2013-09-11 | 2017-09-06 | ボストン サイエンティフィック サイムド，インコーポレイテッドＢｏｓｔｏｎ Ｓｃｉｅｎｔｉｆｉｃ Ｓｃｉｍｅｄ，Ｉｎｃ． | System for selecting and displaying images using an intravascular ultrasound imaging system |
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| US20200375576A1 (en) * | 2019-06-01 | 2020-12-03 | Philips Image Guided Therapy Corporation | Co-registration systems and methods fo renhancing the quality of intravascular images |
| CN111317509B (en) * | 2020-02-26 | 2023-04-07 | 深圳开立生物医疗科技股份有限公司 | Method and device for generating blood vessel longitudinal section image, diagnostic equipment and storage medium |
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