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CN-116777751-B - File grinding area planning method and device, electronic equipment and storage medium

CN116777751BCN 116777751 BCN116777751 BCN 116777751BCN-116777751-B

Abstract

The application relates to a file grinding area planning method, device, electronic equipment and storage medium, wherein the method comprises the steps of obtaining medical image data of a hip joint part of a target object, inputting the medical image data into a pre-trained deep learning model to obtain bone tissue data output by the deep learning model and position information of an acetabular fossa center point, generating a pelvic bone model to be ground and filed based on the bone tissue data, determining a file grinding area of the pelvic bone model according to the pelvic bone model, the position information and a preset acetabular cup model, and visually displaying the pelvic bone model and the file grinding area. According to the application, the problems of low segmentation efficiency and low segmentation precision caused by the fact that the manual segmentation based on the pelvic bone tissue depends on the experience and the proficiency of an operator in the related technology are solved, the automatic segmentation of medical image data based on a pre-trained deep learning model is realized, the segmentation precision and the efficiency can be improved, and the pelvic bone model and the file grinding area are visually displayed.

Inventors

  • SHEN QIANG

Assignees

  • 武汉联影智融医疗科技有限公司

Dates

Publication Date
20260508
Application Date
20220307

Claims (9)

  1. 1. A method of rasping an area comprising: acquiring medical image data of a hip joint part of a target object; Inputting the medical image data into a pre-trained deep learning model to obtain bone tissue data and position information of an acetabular fossa central point output by the deep learning model; Generating a pelvic bone model to be ground and filed based on the bone tissue data; Determining a rasping area of the pelvic bone model according to the pelvic bone model, the position information and a preset acetabular cup model, and visually displaying the pelvic bone model and the rasping area, wherein the determining the rasping area of the pelvic bone model according to the pelvic bone model, the position information and the preset acetabular cup model comprises the following steps: taking the position information as a circle center, taking the size of a cup in a preset acetabular cup model as a diameter, and generating a hemispherical model; And determining a file grinding area according to the intersection of the hemispherical model and the pelvic bone model.
  2. 2. The method of rasping an area planning of claim 1, wherein the determining the rasping area from the intersection of the hemispherical model and the pelvic model includes: Converting the hemispherical model and the pelvic model to a world coordinate system; judging whether the hemispherical model and the pelvic model intersect based on the coordinates of the points constituting the hemispherical model and the coordinates of the points constituting the pelvic model in the world coordinate system; if the hemispherical model and the pelvic model are intersected, determining an intersected point set, and generating an intersection model as a file grinding area according to the point set.
  3. 3. The method of rasping an area planning of claim 1, further comprising: And reconstructing the medical image data and then rendering to obtain a multi-layer reconstruction view.
  4. 4. A method of rasping an area according to claim 3, further comprising: According to the coordinates of the midpoint of the file grinding area, voxels at the corresponding coordinates are obtained, and the voxels are marked according to a preset label; And if voxels carrying a preset label exist on the multi-level reconstruction view, drawing a file-grinding contour line at the corresponding voxels on the multi-level reconstruction view.
  5. 5. The method of rasping an area planning of claim 1, further comprising: And carrying out difference set calculation on the hemispherical model and the file grinding area to obtain a difference set model, and visually displaying the difference set model.
  6. 6. The method of claim 1, wherein generating a pelvic model to be rasped based on the bone tissue data comprises: Performing format conversion on the bone tissue data; and smoothing and subdividing the bone tissue data after format conversion by using a three-dimensional modeling tool to obtain a pelvic bone model to be ground and filed.
  7. 7. The file grinding area planning device is characterized by comprising an acquisition module, a segmentation module, a processing module and a determination display module; the acquisition module is used for acquiring medical image data of the hip joint part of the target object; the segmentation module is used for inputting the medical image data into a pre-trained deep learning model to obtain bone tissue data and position information of an acetabular fossa central point output by the deep learning model; The processing module is used for generating a pelvic bone model to be ground and filed based on the bone tissue data; The determining and displaying module is used for determining a file grinding area of the pelvic bone model according to the pelvic bone model, the position information and a preset acetabular cup model and visually displaying the pelvic bone model and the file grinding area; The determining and displaying module is further used for generating a hemispherical model by taking the position information as a circle center and taking the size of a cup in a preset acetabular cup model as a diameter, and determining a file grinding area according to the intersection of the hemispherical model and the pelvic bone model.
  8. 8. An electronic device comprising a memory and a processor, wherein the memory has stored therein a computer program, the processor being arranged to run the computer program to perform the rasping area planning method of any one of claims 1 to 6.
  9. 9. A computer readable storage medium having stored thereon a computer program, characterized in that the computer program, when executed by a processor, implements the steps of the rasping area planning method of any one of claims 1 to 6.

Description

File grinding area planning method and device, electronic equipment and storage medium Technical Field The application relates to the technical field of medical treatment, in particular to a method and a device for planning a rasping area, electronic equipment and a storage medium. Background Currently, doctors often perform preoperative planning based on X-ray films and computed tomography (Computed Tomography, CT) images before performing hip surgery, and then determine the rasp depth and range based on experience. However, because the X-ray film is a two-dimensional image, only a single direction and angle observation can be provided, and the true depth of the acetabular fossa cannot be determined, the CT image is a three-dimensional stereo image, but the form of the acetabulum is based on the result of manual segmentation of pelvic bone tissues, and the manual segmentation process needs to use third party software to manually position and identify each Multi-planar reconstruction (Multi-Planar Reconstruction, MPR) image, which is complicated and low in efficiency. In addition, the segmentation accuracy is dependent on experience and proficiency of operators, and once the segmentation result is inaccurate, the identification error of the rasped area can be directly caused. Aiming at the problems of low segmentation efficiency and low segmentation precision caused by the fact that the manual segmentation based on the pelvic bone tissue depends on the experience and the proficiency of operators in the related art, no effective solution is proposed at present. Disclosure of Invention In this embodiment, a method, an apparatus, an electronic device, and a storage medium for planning a rasping area are provided to solve the problems of low segmentation efficiency and low segmentation accuracy caused by the fact that manual segmentation based on pelvic bone tissue depends on experience and proficiency of an operator in the related art. In a first aspect, in this embodiment, there is provided an apparatus for planning a rasping area, including: acquiring medical image data of a hip joint part of a target object; Inputting the medical image data into a pre-trained deep learning model to obtain bone tissue data and position information of an acetabular fossa central point output by the deep learning model; Generating a pelvic bone model to be ground and filed based on the bone tissue data; and determining a file grinding area of the pelvic bone model according to the pelvic bone model, the position information and a preset acetabular cup model, and visually displaying the pelvic bone model and the file grinding area. In some embodiments, the determining the rasping area of the pelvic bone model according to the pelvic bone model, the position information and a preset acetabular cup model includes: taking the position information as a circle center, taking the size of a cup in a preset acetabular cup model as a diameter, and generating a hemispherical model; And determining a file grinding area according to the intersection of the hemispherical model and the pelvic bone model. In some of these embodiments, the determining the rasping area from the intersection of the hemispherical model and the pelvic model includes: Converting the hemispherical model and the pelvic model to a world coordinate system; judging whether the hemispherical model and the pelvic model intersect based on the coordinates of the points constituting the hemispherical model and the coordinates of the points constituting the pelvic model in the world coordinate system; if the hemispherical model and the pelvic model are intersected, determining an intersected point set, and generating an intersection model as a file grinding area according to the point set. In some embodiments, the rasping area planning method further includes: And reconstructing the medical image data and then rendering to obtain a multi-layer reconstruction view. In some embodiments, the rasping area planning method further includes: according to the coordinates of the midpoint of the file grinding area, voxels corresponding to the coordinate positions are obtained, and the voxels are marked according to a preset label; Rendering the multi-level reconstruction view, and if voxels carrying preset labels exist on the multi-level reconstruction view, drawing a file-milling contour line at the corresponding voxels on the multi-level reconstruction view. In some embodiments, the rasping area planning method further includes: And carrying out difference set calculation on the hemispherical model and the file grinding area to obtain a difference set model, and visually displaying the difference set model. In some of these embodiments, the generating a pelvic model to be rasped based on the bone tissue data includes: Performing format conversion on the bone tissue data; and smoothing and subdividing the bone tissue data after format conversion by using a three-dimensional modeling t