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After-loading radiotherapy plan and 3D printing template integrated simulation design method and system

A 3D printing and template technology, applied in the field of virtual surgery, can solve the problems of high dependence on physicist experience, increase the difficulty of treatment planning, and cross needle tracks, so as to reduce the difficulty of reproduction, alleviate the high dependence on experience, and avoid needle tracks. cross effect

Active Publication Date: 2021-01-22
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the placement of the applicator, the problem of intersecting needle tracks is prone to occur, and it is difficult to check through manual means, which greatly increases the difficulty of making a treatment plan. In addition, the traditional surgical simulation design method relies heavily on the experience of physicists.

Method used

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  • After-loading radiotherapy plan and 3D printing template integrated simulation design method and system
  • After-loading radiotherapy plan and 3D printing template integrated simulation design method and system
  • After-loading radiotherapy plan and 3D printing template integrated simulation design method and system

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no. 1 example

[0020] figure 1 It is a schematic flow chart of an integrated simulation design method of post-loading radiotherapy plan and 3D printing template in the first embodiment of the present invention, as shown in figure 1 As shown, the method includes the following seven steps.

[0021] Step S10: Obtain the three-dimensional model of Shi Yuanzhu. What needs to be explained is that the 3D model of the source column after the source column is filled is obtained as a benchmark for generating the afterloading radiation therapy template. The source column is placed in the human body during afterloading radiation therapy, and the radiation therapy template is connected with the source column to fit on the human body body surface. The obtained 3D model and the template generated later can be printed with a 3D printer.

[0022] Step S11: Marking tumor targets in medical images. Specifically, the medical image after Shiyuan column filling is obtained, the tumor target is marked in the m...

no. 2 example

[0039] image 3 It is a structural schematic diagram of an integrated simulation design system for post-loading radiotherapy plans and 3D printing templates according to an embodiment of the present invention, as shown in image 3 As shown, the system includes: a computing device 100 and a 3D printing device 200 , and the computing device includes a model extraction module 101 , an image processing module 102 , a plan generation module 103 and a plan output module 104 .

[0040] The model extraction module 101, obtains the three-dimensional model of Shiyuan's column after filling;

[0041] The image processing module 102 acquires the medical image after Shiyuan column is packed, marks the tumor target in the medical image, establishes a 3D image including the TV area and OAR area of ​​the tumor target, uniformly samples the 3D image, and acquires target point cloud data;

[0042] The plan generation module 103 defines the needle entry area within the specified range of Shi Yu...

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Abstract

The invention discloses an after-loading radiotherapy plan and 3D printing template integrated simulation design method and system. The method comprises the steps: obtaining a source application column three-dimensional model after the filling of a source application column, obtaining a medical image after the filling of the source application column, marking a tumor target in the medical image, obtaining target point cloud data, and defining a needle insertion region in a specified range of the source application column; generating a needle channel sequence, setting a plurality of radioactiveparticles in a needle channel in the sequence P, and calculating and optimizing residence points and residence time of the radioactive particles by utilizing a gradient method so as to meet set dosedistribution; generating a template containing a source application column; and printing a three-dimensional model of a template, a needle channel sequence P and other data through a 3D printing technology. Compared with the prior art, the scheme provided by the invention has the advantages that the high dependence of traditional after-loading radiotherapy operation plan making on the experience of doctors is relieved, and the efficiency of treatment plan making is improved. In combination with the 3D printing technology, the treatment plan can be reproduced in the physical model, and the quality of actual treatment is guaranteed.

Description

technical field [0001] The invention relates to the technical field of virtual surgery, in particular to an integrated simulation design method and system for afterloading radiotherapy plan and 3D printing template. Background technique [0002] Afterloading radiation therapy is a type of brachytherapy that uses a catheter to place a source of highly active radiation near or inside a tumor to kill it. Backloading radiation therapy is widely used in the medical field of cancer such as cervical cancer, prostate cancer, breast cancer and skin cancer. Radiation therapy uses radioactive particles to indiscriminately destroy tumors and nearby tissues. Therefore, in order to improve tumor killing efficiency and reduce damage to surrounding tissues, it is necessary to carry out surgical simulation before radiation therapy, and then formulate a radiation therapy operation plan. [0003] The traditional simulation design method of afterloading radiotherapy surgery is a trial-and-erro...

Claims

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Application Information

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IPC IPC(8): A61N5/10G06T17/00G16H50/50
CPCA61N5/1007A61N5/1028A61N5/103A61N5/1048A61N5/1049A61N2005/1008A61N2005/1009A61N2005/1012A61N2005/1092A61N2005/1095G06T17/00G16H50/50
Inventor 刘博肖卓周付根
Owner BEIHANG UNIV
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