Integrated simulation design method and system for afterloading radiotherapy plan and 3D printing template

A 3D printing and template technology, applied in the field of virtual surgery, can solve the problems of high dependence on physicists' experience, increase the difficulty of treatment planning, and intersecting needle paths, so as to reduce the difficulty of recurrence, alleviate the high dependence on experience, and avoid needle paths cross effect

Active Publication Date: 2021-08-27
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • Integrated simulation design method and system for afterloading radiotherapy plan and 3D printing template
  • Integrated simulation design method and system for afterloading radiotherapy plan and 3D printing template
  • Integrated simulation design method and system for afterloading radiotherapy plan and 3D printing template

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no. 1 example

[0018] 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.

[0019] 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.

[0020] 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

[0037] 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 .

[0038] The model extraction module 101, obtains the three-dimensional model of Shiyuan's column after filling;

[0039] 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;

[0040] 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 integrated simulation design method and system for post-installation radiotherapy plan and 3D printing template, comprising: obtaining the three-dimensional model of the source column after the source column is filled, obtaining the medical image after the source column is filled, marking the tumor target in the medical image, and obtaining For the target point cloud data, define the needle entry area within the specified range of Shiyuan column, generate the needle track sequence, set a number of radiation particles in the needle track in the sequence P, and use the gradient method to calculate and calculate the residence point and residence time of the radiation particles. Optimize to meet the set dose distribution; generate a template containing the source column; use 3D printing technology to print the three-dimensional model of the template, the needle track sequence P and other data. Compared with the prior art, the solution proposed by the present invention alleviates the high dependence of the traditional afterloading radiotherapy operation plan on the experience of doctors, and improves the efficiency of treatment plan formulation. Combined with 3D printing technology, the treatment plan can be reproduced in the physical model, ensuring the quality of the actual treatment.

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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Patent Type & Authority Patents(China)
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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