A method for evaluating the effect of tumor radiotherapy based on radioactive seed implantation

A technology of radioactive particles and evaluation methods, applied in the field of postoperative evaluation of precise radiotherapy, can solve the problems of inability or effect of radioactive particles and lack of precise evaluation.

Active Publication Date: 2022-06-21
锐德泰医疗科技(成都)有限公司
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Problems solved by technology

[0005] In order to solve the technical problems of the lack of accurate evaluation of the existing radioactive particles for precise radiotherapy on tumors, or the effect of different types of radioactive particles on different tumor tissues, this application provides a radiotherapy for tumors based on radioactive particle implantation The effect evaluation method can evaluate the therapeutic effect of radioactive particles after radiotherapy for specific tumor tissues in detail, objectively and accurately, so as to finally know the effect of different radioactive particles on different tumor tissues, so as to facilitate subsequent precise radiotherapy. The study of radioactive particles provides a scientific basis for the selection of radioactive particles

Method used

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  • A method for evaluating the effect of tumor radiotherapy based on radioactive seed implantation
  • A method for evaluating the effect of tumor radiotherapy based on radioactive seed implantation
  • A method for evaluating the effect of tumor radiotherapy based on radioactive seed implantation

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Embodiment 1

[0043] This embodiment takes a lung cancer patient as an example to describe a method for evaluating the effect of tumor radiotherapy based on radioactive seed implantation, including the following steps:

[0044] STP100 guide wire marking: place two guide wires L in a cross arrangement 1 and L 2 Paste it on the body surface corresponding to the tumor site of the patient, and one of the guide wires is in the same direction as the patient's head and foot side; the guide wire L in the above steps 1 and L 2 The shortest length of the CT scan is 40mm, and it is performed with oblique and oblique scans in the state of the maximum inclination angle of CT, and the slice thickness is 3mm. It is worth noting that the selection of the layer thickness of the scan should be selected according to the particle arrangement spacing of the particle implantation plan, and the layer thickness should be equal to or smaller than the particle arrangement distance, thereby reducing the modeling bl...

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Abstract

This application discloses a radiotherapy effect evaluation method for tumors based on radioactive particle implantation, including guide wire marking, CT scanning, and the obtained tomographic layer set Pic 1 and tomography layer set Pic 2 Perform 3D model reconstruction to obtain model P 1 and model P 2 ; put the model P 1 and model P 2 Fusion to obtain model P 3 ; put the model P 3 Steps of gridding, evaluation index extraction and evaluation result output. It can make detailed statistics of the spatial displacement changes of radioactive particles in the tumor over time; at the same time, it can evaluate the radiotherapy effect brought by the tumor; through the evaluation of the index of the degree of radioactive particle aggregation η 1 , the index of tumor shrinkage degree η 2 , effective radiotherapy coverage index η 3 and precision radiotherapy index η 4 Make statistics to objectively reflect the effect of the current precise radiotherapy technology on the current tumor tissue for reflective particle tumors.

Description

technical field [0001] The invention relates to the technical field of postoperative evaluation of precise radiotherapy, in particular to a method for evaluating the effect of radioactive seed implantation on tumors, and in particular to a method for evaluating the effect of tumor radiotherapy based on radioactive seed implantation. Background technique [0002] Tumor is a major problem faced by medical technology in the world today. According to the International Agency for Research on Cancer (IARC), there are nearly 20 million new cancer patients every year in the world in recent years, and nearly 10 million people die because of tumors. Although there are many effective treatment methods for tumors in the existing medical technology, there are often no symptoms due to the early emergence of tumors, which makes it difficult to achieve early detection and early treatment. Some tumor patients; the remaining treatment methods are usually radiotherapy and chemotherapy and targ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M36/12A61N5/10
CPCA61N5/1002A61N5/1007A61N5/1071A61N2005/1012A61N2005/1085
Inventor 曲飞寰石广越杨帆乔晓飞蔡淯庆敬洋刘志俣贾曦
Owner 锐德泰医疗科技(成都)有限公司
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