Lesion marking method, electronic device and storage medium

Abstract

The present application relates to a lesion marking method, electronic device and storage medium, which obtains the lesion position of a tubular organ or tissue in a medical image; sets a marking graphic on at least one side of the tubular organ or tissue in the medical image, wherein the position of the marking graphic and the lesion position are located on the same radial line, and the radial distance between the marking graphic and the ipsilateral projection boundary of the tubular organ or tissue is not greater than a preset distance, thereby solving the problem in the related art that the marking graphic cannot accurately locate the lesion position, and realizing accurate positioning of the lesion position.

Description

Technical Field

[0001] The present application relates to the field of medical image processing, and in particular to a lesion marking method, an electronic device, and a storage medium. Background Art

[0002] Figure 1 This is a schematic diagram of related technologies used to mark lesions on blood vessels in medical images. Figure 1 ,exist Figure 1 In the figure, the marker is a continuous horizontal line that runs between the two walls of the blood vessel, blocking the blood vessel image.

[0003] Figure 2 This is a schematic diagram of related technologies used to mark lesions on blood vessels in medical images. Figure 2 ,exist Figure 2 In the image, the marker graphic is a broken horizontal line. When the blood vessel is thick, the marker graphic will block the image outside the blood vessel, affecting the image reading; when the blood vessel is thin, the marker graphic is far away from the blood vessel, affecting the accuracy of lesion positioning.

[0004] Currently, no effective solution has been proposed to the problem that the marking graphics in the related art cannot accurately locate the location of the lesion. Summary of the Invention

[0005] In this embodiment, a lesion marking method, an electronic device, and a storage medium are provided to solve the problem in the related art that the marking graphics cannot accurately locate the lesion position.

[0006] In a first aspect, this embodiment provides a lesion marking method, comprising:

[0007] Obtaining the location of lesions in tubular organs or tissues in medical images;

[0008] A marking graphic is set on at least one side of the tubular organ or tissue in the medical image, the position of the marking graphic and the lesion position are located on the same radial line, and the radial distance between the marking graphic and the ipsilateral projection boundary of the tubular organ or tissue is not greater than a preset distance.

[0009] In some embodiments, setting a marking graphic on at least one side of the tubular organ or tissue in the medical image includes:

[0010] Determining the position points corresponding to the lesion position on two projection boundaries of the tubular organ or tissue;

[0011] A marking graphic is set on at least one side of the tubular organ or tissue in the medical image, and the marking graphic and the position point on the same side projection boundary of the tubular organ or tissue are located on the same radial line, and the radial distance is not greater than the preset distance.

[0012] In some embodiments, setting a marking graphic on at least one side of the tubular organ or tissue in the medical image includes:

[0013] Determining the relative positional relationship between the lesion location and the projected boundary of the tubular organ or tissue;

[0014] The distribution characteristics of the marker graphics in the medical image are determined according to the relative position relationship.

[0015] In some embodiments, the marking graphic includes two geometric graphics, and setting the marking graphic on at least one side of the tubular organ or tissue in the medical image includes:

[0016] Obtaining the radial projection size of the tubular organ or tissue at the location where the lesion occurs;

[0017] determining a distance between the two geometric figures according to the radial projection size and the preset distance;

[0018] The two geometric figures are respectively arranged on both sides of the tubular organ or tissue in the medical image according to the distance between the two geometric figures.

[0019] In some embodiments, the angle between the imaginary center line of the tubular organ or tissue and the radial line is no greater than a preset angle.

[0020] In some embodiments, the angle between the imaginary center line and the radial line is 90 degrees.

[0021] In some embodiments, the marking graphic includes two geometric graphics, and setting the marking graphic on at least one side of the tubular organ or tissue in the medical image includes:

[0022] The two geometric figures are superimposed and displayed on both sides of the tubular organ or tissue respectively, with the imaginary center line as the axis of symmetry.

[0023] In some embodiments, the marking graphic includes a first end and a second end, the area of the first end is not larger than the area of the second end, wherein the first end is close to the ipsilateral projection boundary of the tubular organ or tissue, and the second end is far from the ipsilateral projection boundary of the tubular organ or tissue.

[0024] In some embodiments, the marking pattern includes one of the following: a triangle, a teardrop shape, a parallelogram, and a rectangle.

[0025] In some embodiments, the color saturation of the marking graphic is not less than the color saturation of the tubular organ or tissue in the medical image, and / or the color brightness of the marking graphic is not less than the color brightness of the tubular organ or tissue in the medical image.

[0026] In some embodiments, the interior of the outline of the marking graphic is filled with a color different from the color of the tubular organ or tissue in the medical image; or, the interior of the outline of the marking graphic is transparent relative to the tubular organ or tissue in the medical image.

[0027] In some embodiments, before obtaining the location of the lesion of the tubular organ or tissue in the medical image, the method further includes:

[0028] determining the type of the tubular organ or tissue;

[0029] According to the category of the tubular organ or tissue, a marking graphic matching the category of the tubular organ or tissue is acquired.

[0030] In a second aspect, an electronic device is provided in this embodiment, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the lesion marking method described in the first aspect when executing the computer program.

[0031] In a third aspect, a storage medium is provided in this embodiment, on which a computer program is stored. When the program is executed by a processor, the steps of the lesion marking method described in the first aspect are implemented.

[0032] Compared with the related art, the lesion marking method, electronic device and storage medium provided in this embodiment obtain the lesion position of the tubular organ or tissue in the medical image; set a marking graphic on at least one side of the tubular organ or tissue in the medical image, the position of the marking graphic and the lesion position are on the same radial line, and the radial distance between the marking graphic and the ipsilateral projection boundary of the tubular organ or tissue is not greater than the preset distance, thereby solving the problem in the related art that the marking graphic cannot accurately locate the lesion position, and realizing accurate positioning of the lesion position.

[0033] The details of one or more embodiments of the present application are set forth in the following drawings and description to make other features, objects, and advantages of the present application more readily apparent. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0035] Figure 1 This is a schematic diagram of related technologies used to mark lesions on blood vessels in medical images. Figure 1 ;

[0036] Figure 2 This is a schematic diagram of related technologies used to mark lesions on blood vessels in medical images. Figure 2 ;

[0037] Figure 3 This is a hardware structure block diagram of a terminal of a lesion marking method according to an embodiment of the present application;

[0038] Figure 4 is a flow chart of a lesion marking method according to an embodiment of the present application;

[0039] Figure 5 is a schematic diagram of a single-side mark according to an embodiment of the present application;

[0040] Figure 6 is a schematic diagram of a double-sided mark according to an embodiment of the present application;

[0041] Figure 7 This is an example schematic diagram of a marking graphic of a preferred embodiment of the present application. DETAILED DESCRIPTION

[0042] In order to more clearly understand the purpose, technical solutions and advantages of the present application, the present application is described and illustrated below in conjunction with the accompanying drawings and embodiments.

[0043] Unless otherwise defined, the technical terms or scientific terms involved in this application should have the general meaning understood by people with ordinary skills in the technical field to which this application belongs. The words "one", "an", "a", "the", "these" and the like in this application do not indicate quantitative restrictions, and they can be singular or plural. The terms "include", "comprise", "have" and any variants thereof involved in this application are intended to cover non-exclusive inclusions; for example, a process, method and system, product or device comprising a series of steps or modules (units) is not limited to the listed steps or modules (units), but may include unlisted steps or modules (units), or may include other steps or modules (units) inherent to these processes, methods, products or devices. The words "connect", "connected", "coupled" and the like involved in this application are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The "plurality" involved in this application refers to two or more. "And / or" describes the relationship between related objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, and B exists alone. Generally, the character " / " indicates that the related objects are in an "or" relationship. The terms "first," "second," "third," etc. used in this application are only used to distinguish similar objects and do not represent a specific ordering of the objects.

[0044] The method embodiment provided in this embodiment can be executed in a terminal, a computer or a similar computing device. For example, running on a terminal, Figure 3 FIG. 1 is a block diagram of the hardware structure of a terminal of a lesion marking method according to an embodiment of the present application. Figure 3 As shown, the terminal may include one or more ( Figure 3 Only one is shown) processor 302 and memory 304 for storing data, wherein processor 302 may include but is not limited to a processing device such as a microprocessor MCU or a programmable logic device FPGA. The above terminal may also include a transmission device 306 and an input and output device 308 for communication functions. It will be understood by those skilled in the art that Figure 3 The structure shown is only for illustration and does not limit the structure of the above terminal. Figure 3 More or fewer components than shown, or with Figure 3 Different configurations shown.

[0045] The memory 304 can be used to store computer programs, for example, software programs and modules of application software, such as the computer program corresponding to the lesion marking method in this embodiment. The processor 302 executes the computer programs stored in the memory 304 to perform various functional applications and data processing, thereby implementing the above-mentioned method. The memory 304 may include high-speed random access memory and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 304 may further include memory remotely located relative to the processor 302, and these remote memories may be connected to the terminal via a network. Examples of such networks include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0046] Transmission device 306 is used to receive or send data via a network. The aforementioned network includes a wireless network provided by the terminal's communications provider. In one embodiment, transmission device 306 includes a network interface controller (NIC), which can be connected to other network devices via a base station to enable communication with the Internet. In another embodiment, transmission device 306 can be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0047] In the embodiments of the present application, a lesion marking method is provided. Figure 4 This is a flow chart of a lesion marking method according to an embodiment of the present application. Figure 4 As shown, the process includes the following steps:

[0048] Step S401: Acquire the location of a lesion in a tubular organ or tissue in a medical image.

[0049] In an embodiment of the present application, the medical image can be preprocessed using an image recognition method to extract corresponding feature information and identify lesions of tubular organs or tissues, thereby obtaining the location of the lesions of the tubular organs or tissues in the medical image.

[0050] Tubular organs or tissues include but are not limited to blood vessels and intestines. Medical images include but are not limited to straightened CPR (Curved Plannar Reconstruction) images, CPR images, VR (Virtual Reality) images, and MIP (Maximum Intensity Projection) images.

[0051] Step S402: Setting a marking graphic on at least one side of a tubular organ or tissue in a medical image. The position of the marking graphic and the lesion position are located on the same radial line, and the radial distance between the marking graphic and the ipsilateral projection boundary of the tubular organ or tissue is not greater than a preset distance.

[0052] Determine the projection boundary of the tubular organ or tissue where the lesion is located, obtain the position of the projection boundary of the tubular organ or tissue, determine the radial line where the lesion is located based on the lesion position and the position of the projection boundary, set the marking graphic on at least one side of the tubular organ or tissue according to the radial line, and make the distance between the marking graphic and the projection boundary on the same side along the radial line no greater than a preset distance.

[0053] Furthermore, the position points corresponding to the lesion position on the two projection boundaries of the tubular organ or tissue are determined; a marking graphic is set on at least one side of the tubular organ or tissue in the medical image, and the marking graphic and the position point on the projection boundary on the same side of the tubular organ or tissue are located on the same radial line, and the radial distance is not greater than a preset distance.

[0054] In medical images, a marker graphic can be set only on one side of a tubular organ or tissue (refer to Figure 5 ), or you can set marking graphics on both sides of the tubular organ or tissue (reference Figure 6 Preferably, the relative positional relationship between the lesion location and the projected boundary of the tubular organ or tissue is first determined; and the distribution characteristics of the marker pattern in the medical image are determined based on the relative positional relationship. For example, when the lesion location is identified as being close to one side of the tubular organ or tissue, the marker pattern may be set only on one side of the tubular organ or tissue. When the lesion location is identified as being close to the central region of the tubular organ or tissue, the marker pattern may be set on both sides of the tubular organ or tissue.

[0055] In the above steps S401 to S402, the marking graphic and the projected boundary of the tubular organ or tissue maintain an appropriate distance, that is, it will not block the tubular organ or tissue, nor will it be too far away from the tubular organ or tissue. This solves the problem in the related art that the marking graphic cannot accurately locate the lesion position, and achieves accurate positioning of the lesion position, thereby improving the efficiency and user experience of imaging diagnosis.

[0056] In some embodiments, the marking graphic includes two geometric graphics. When setting the marking graphic on at least one side of a tubular organ or tissue in a medical image, the radial projection size of the tubular organ or tissue at the location of the lesion can be obtained; based on the radial projection size and a preset distance, the distance between the two geometric graphics is determined; and based on the distance between the two geometric graphics, the two geometric graphics are respectively set on both sides of the tubular organ or tissue in the medical image.

[0057] In the embodiment of the present application, the radial projection dimension includes the projected width of the tubular organ or tissue. The distance between the two geometric figures can be determined by first obtaining the projected width of the tubular organ or tissue and then calculating the sum of the projected width and a preset distance. The two geometric figures can then be superimposed and displayed on either side of the tubular organ or tissue. This arrangement allows the distance between the geometric figures on either side of the tubular organ or tissue to be adaptively adjusted based on the projected width of the tubular organ or tissue in the same medical image, for tubular organs or tissues of different sizes.

[0058] In specific implementation, since tubular organs or tissues are not regular tubular in shape as a whole, in order to relatively accurately determine their diameter, a partial area containing only the lesion can be intercepted to obtain the radial projection size of the area, that is, the diameter of the tubular organ or tissue can be obtained.

[0059] In some embodiments, after a marker graphic is placed on at least one side of a tubular organ or tissue in a medical image, the image may be rotated, translated, or scaled, resulting in the originally marked marker graphic inaccurately pointing to the lesion location. To address this issue, in some embodiments, the angle between the imaginary centerline of the tubular organ or tissue and a radial line is set to be no greater than a preset angle. This allows the direction indicated by the marker graphic to be adjusted based on the angle between the imaginary centerline and the radial line, clearly indicating the marker graphic's direction to the lesion location.

[0060] For example, reference Figure 6 When creating or editing the location of a vascular lesion on a medical image of a blood vessel, two triangles are set on both sides of the blood vessel. The distance between the triangles on both sides is automatically adjusted in real time according to the size of the blood vessel diameter. The position and direction of the triangles are automatically changed in real time according to the current centerline angle of the blood vessel and the position of the blood vessel wall, so that the triangles always maintain a relatively fixed distance from the blood vessel on the medical image, that is, they will not block the blood vessel, nor be too far away from the blood vessel, thereby achieving accurate and unobstructed marking of the lesion location.

[0061] Preferably, the angle between the imaginary center line and the radial line is 90 degrees.

[0062] In some embodiments, reference Figure 6 The marking graphic includes two geometric graphics. When the marking graphic is set on at least one side of a tubular organ or tissue in a medical image, the two geometric graphics can be superimposed and displayed on both sides of the tubular organ or tissue with an imaginary center line as the axis of symmetry.

[0063] In some embodiments, in order to make the marking graphic more clearly point to the lesion location, the marking graphic includes a first end and a second end, and the area of the first end is not larger than the area of the second end, wherein the first end is close to the ipsilateral projection boundary of the tubular organ or tissue, and the second end is away from the ipsilateral projection boundary of the tubular organ or tissue.

[0064] refer to Figure 7 The marking graphics include but are not limited to triangle, teardrop, parallelogram, and rectangle. For the marking graphics of triangle, teardrop, and parallelogram, the tip thereof is set to point to the lesion location.

[0065] In some embodiments, the color saturation of the marker graphic is not less than the color saturation of the tubular organ or tissue in the medical image, and / or the color brightness of the marker graphic is not less than the color brightness of the tubular organ or tissue in the medical image.

[0066] For example, the outline of the marker graphic is filled with a color that is different from the tubular organ or tissue in the medical image. This arrangement enables the marker graphic to be significantly distinguished from the tubular organ or tissue in the medical image.

[0067] For another example, the interior of the outline of the marking graphic is set to a transparent state relative to the tubular organ or tissue in the medical image, so that the marking graphic does not block other organs or tissues.

[0068] In the related art, when the blood vessels are thicker, the marking graphic will block the image outside the blood vessels, affecting the reading of the film; when the blood vessels are thinner, the marking graphic is farther away from the blood vessels, affecting the accuracy of lesion positioning. As tubular organs or tissues, blood vessels and intestines have a large difference in diameter. The diameter of blood vessels is generally smaller than that of intestines. Therefore, when a marking graphic appears to be of the right size when superimposed on both sides of the outer wall of the blood vessels, it may appear to be of an inappropriate size if the marking graphic is superimposed on both sides of the outer wall of the intestine. Conversely, when a marking graphic appears to be of the right size when superimposed on both sides of the outer wall of the intestine, it may appear to be of an inappropriate size if the marking graphic is superimposed on both sides of the outer wall of the blood vessels. In other words, if marking graphics of the same size and type are used to mark lesions of different categories of tubular organs or tissues, there may be a problem of incoordination between the marking graphic and the tubular organs or tissues.

[0069] To solve this problem, before obtaining the lesion location of the tubular organ or tissue in the medical image, the category of the tubular organ or tissue will also be determined; based on the category of the tubular organ or tissue, a marking graphic matching the category of the tubular organ or tissue is obtained.

[0070] For example, tubular organs or tissues may be classified according to their diameters, and a variety of different types of marking patterns may be preset so that the types of marking patterns are adapted to the sizes of the tubular organs or tissues.

[0071] This embodiment further provides an electronic device, including a memory and a processor, wherein the memory stores a computer program, and the processor is configured to run the computer program to execute the steps in any one of the above method embodiments.

[0072] Optionally, the electronic device may further include a transmission device and an input / output device, wherein the transmission device is connected to the processor, and the input / output device is connected to the processor.

[0073] Optionally, in this embodiment, the processor may be configured to execute the following steps through a computer program:

[0074] S1, obtaining the location of the lesion of the tubular organ or tissue in the medical image;

[0075] S2. Setting a marking graphic on at least one side of a tubular organ or tissue in a medical image, wherein the position of the marking graphic and the position of the lesion are located on the same radial line, and the radial distance between the marking graphic and the ipsilateral projection boundary of the tubular organ or tissue is not greater than a preset distance.

[0076] It should be noted that, for specific examples in this embodiment, reference may be made to the examples described in the above embodiments and optional implementation modes, and will not be repeated in this embodiment.

[0077] In addition, in combination with the lesion marking method provided in the above embodiments, a storage medium may be provided in this embodiment to implement the lesion marking method. The storage medium stores a computer program; when the computer program is executed by a processor, any one of the lesion marking methods in the above embodiments is implemented.

[0078] It should be understood that the specific embodiments described herein are only used to explain this application and are not used to limit it. Based on the embodiments provided in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0079] Obviously, the accompanying drawings are merely examples or embodiments of the present application. A person skilled in the art can also apply the present application to other similar situations based on these drawings without inventive effort. Furthermore, it is understandable that, although the work involved in this development process may be complex and lengthy, certain design, manufacturing, or production changes based on the technical content disclosed in this application are merely routine technical means for a person skilled in the art and should not be considered to constitute a deficiency in the disclosure of the present application.

[0080] The term "embodiment" as used in this application refers to specific features, structures, or characteristics described in conjunction with the embodiment that can be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily mean that the embodiment is the same, nor does it mean that it is mutually exclusive with other embodiments and is independent or optional. It is understood, either explicitly or implicitly, by those skilled in the art that the embodiments described in this application can be combined with other embodiments when there is no conflict.

[0081] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of patent protection. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present application shall be determined by the appended claims.

Claims

1. A lesion marking method, characterized in that: include: Obtaining the location of lesions in tubular organs or tissues in medical images; A marking graphic is set on at least one side of the tubular organ or tissue in the medical image, the position of the marking graphic and the lesion position are located on the same radial line, and the radial distance between the marking graphic and the ipsilateral projection boundary of the tubular organ or tissue is not greater than a preset distance.

2. The lesion marking method according to claim 1, wherein Setting a marking graphic on at least one side of the tubular organ or tissue in the medical image includes: Determining the position points corresponding to the lesion position on two projection boundaries of the tubular organ or tissue; A marking graphic is set on at least one side of the tubular organ or tissue in the medical image, and the marking graphic and the position point on the same side projection boundary of the tubular organ or tissue are located on the same radial line, and the radial distance is not greater than the preset distance.

3. The lesion marking method according to claim 1 or 2, characterized in that, Setting a marking graphic on at least one side of the tubular organ or tissue in the medical image includes: Determining the relative positional relationship between the lesion location and the projected boundary of the tubular organ or tissue; The distribution characteristics of the marker graphics in the medical image are determined according to the relative position relationship.

4. The lesion marking method according to claim 1, wherein The marking graphic includes two geometric graphics, and setting the marking graphic on at least one side of the tubular organ or tissue in the medical image includes: Acquiring the radial projection size of the tubular organ or tissue at the location where the lesion occurs; determining a distance between the two geometric figures according to the radial projection size and the preset distance; The two geometric figures are respectively arranged on both sides of the tubular organ or tissue in the medical image according to the distance between the two geometric figures.

5. The lesion marking method according to claim 1, wherein The angle between the imaginary center line of the tubular organ or tissue and the radial line is no greater than a preset angle.

6. The lesion marking method according to claim 5, characterized in that: The angle between the imaginary center line and the radial line is 90 degrees.

7. The lesion marking method according to claim 5, characterized in that: The marking graphic includes two geometric graphics, and setting the marking graphic on at least one side of the tubular organ or tissue in the medical image includes: The two geometric figures are superimposed and displayed on both sides of the tubular organ or tissue respectively, with the imaginary center line as the axis of symmetry.

8. The lesion marking method according to claim 1, wherein The marking graphic includes a first end and a second end, the area of the first end is not larger than the area of the second end, wherein the first end is close to the ipsilateral projection boundary of the tubular organ or tissue, and the second end is far from the ipsilateral projection boundary of the tubular organ or tissue.

9. The lesion marking method according to claim 8, characterized in that: The marking pattern includes one of the following: a triangle, a teardrop, a parallelogram, and a rectangle.

10. The lesion marking method according to claim 1, characterized in that: The color saturation of the marking graphic is not less than the color saturation of the tubular organ or tissue in the medical image, and / or the color brightness of the marking graphic is not less than the color brightness of the tubular organ or tissue in the medical image.

11. The lesion marking method according to claim 1, characterized in that: The interior of the outline of the marking graphic is filled with a color different from the color of the tubular organ or tissue in the medical image; or the interior of the outline of the marking graphic is transparent relative to the tubular organ or tissue in the medical image.

12. The lesion marking method according to claim 1, characterized in that: Before obtaining the location of the lesion of the tubular organ or tissue in the medical image, the method further includes: determining the type of the tubular organ or tissue; According to the category of the tubular organ or tissue, a marking graphic matching the category of the tubular organ or tissue is acquired.

13. An electronic device comprising a memory and a processor, characterized in that: A computer program is stored in the memory, and the processor is configured to run the computer program to perform the lesion marking method according to any one of claims 1 to 12.

14. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the lesion marking method according to any one of claims 1 to 12 are implemented.

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