Radiotherapy planning system, determining device and storage medium

Abstract

The invention discloses a radiotherapy planning system, a determining device and a storage medium. The system includes one or more processors, and a storage device for storing one or more programs; the one or more programs are executed by one or more processors, and the one or more processors perform the following steps: acquiring image sequences distributed with time, wherein the image sequencesincluding sample points corresponding to the same location of an interest region; establishing an optimization model based on the sampling points and the weight of each image in the image sequences; and solving the optimization model to determine the radiation therapy plan. The above technical scheme solves the problem that in the prior art, a tumor target area generates periodic movements due tobreathing, heartbeat, and the like, so that the actual exposure dose of the target area and surrounding endangered organs is different from the target dose, the system provides a more precise radiotherapy plan for the movement target area, facilitates more precise treatment, effectively protects the surrounding endangered organs of the target area, and is suitable for use with most existing radiotherapy equipment that implements radiotherapy plans.

Description

technical field [0001] Embodiments of the present invention relate to the field of medical technology, and in particular, to a radiotherapy planning system, a determining device, and a storage medium. Background technique [0002] Radiation therapy is one of the important methods of tumor treatment. Before radiation therapy, static CT (Computed Tomography, computerized tomography) images of the patient are collected first, and then the radiation therapy plan is determined according to the static CT images of the patient. [0003] During the implementation of radiation treatment plan, the tumor site will move periodically due to breathing, heartbeat and other reasons. In order to enable the moving tumor to reach the prescribed dose, in the prior art, tumor target volume expansion or radiotherapy equipment with gating or target volume tracking functions are usually used to solve the above problems. [0004] However, when the tumor target area is expanded, the entire target ar...

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Problems solved by technology

[0004] However, when the tumor target area is expanded, the entire target area needs to cover the changing range of the tumor. This method requires a physicist to have high clinical experience, and there is also a passive increase in the exposure dose of the endangered organs around the tumor. Threat to the patient's organ-threatening health condition

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