肿瘤位置追踪方法、放射治疗设备和存储介质

By constructing a decoupling model, deep neural networks and traditional registration algorithms are used to decouple the patient's breathing and movement. Based on body surface and medical image information, real-time and accurate tracking of tumor location is achieved, solving the problem of inaccurate tumor location estimation in existing technologies and improving the precision of radiotherapy.

CN121360343BActive Publication Date: 2026-07-17SHANGHAI UNITED IMAGING HEALTHCARE

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGHAI UNITED IMAGING HEALTHCARE
Filing Date
2024-07-17
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Current technology cannot accurately estimate the location of tumors during radiotherapy, especially when patients are breathing or moving, which increases the risk of radiation off-target, fails to effectively destroy malignant tumors, and may damage normal tissues.

Method used

By constructing a decoupling model, deep neural networks are used to decouple the patient's breathing and movement. Based on body surface image information and medical images, the tumor location is tracked in real time. A dataset containing respiratory phases and movement states is constructed using deep neural networks and traditional registration algorithms. The decoupling model is trained to output the current respiratory phase and movement state, eliminating the interference of breathing on movement calculation.

Benefits of technology

It enables accurate tracking of tumor location during radiotherapy, improving the accuracy of radiotherapy and reducing the risk of damage to normal tissues.

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Abstract

本申请涉及一种肿瘤位置追踪方法、放射治疗设备和存储介质,该方法包括:获取放射治疗过程中患者目标部位的体表图像信息;将患者的医学图像和体表图像信息输入训练完备的解耦模型,解耦得到对应的当前呼吸时相和当前运动状态;基于当前呼吸时相和当前运动状态,对目标部位中的肿瘤进行实时追踪。通过本申请,能够根据患者的医学图像和体表图像,通过解耦模型解耦患者的呼吸和运动,以对肿瘤位置进行准确跟踪,解决了无法准确估计肿瘤位置的问题。
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