Multi-mode guided adaptive radiotherapy system

Abstract

The invention discloses a multi-mode guided adaptive radiotherapy system. The system mainly comprises two kilovolt-level X-ray imaging systems, an infrared positioning and tracking system and a megavolt-level X-ray imaging system. According to the multi-mode guided adaptive radiotherapy system of the invention, different modes of image and dose signals are integrated, so that the two externally arranged X-ray imaging systems, the infrared positioning and tracking system and the megavolt-level X-ray imaging system which is mounted on an accelerator can be integrated in the multi-mode guided adaptive radiotherapy system; tumor location real-time tracking correction and irradiation dose verification can be simultaneously performed during a treatment process; dynamic adjustment can be realized; the problem of the position and shape change of a target area in radiotherapy can be solved in real time; a treatment plan is update according to the latest anatomical structure of a patient beforeeach round of treatment; the position of the patient and errors caused by target area movement collection can be timely adjusted during the radiotherapy, so that current and subsequent treatment can be guided; an accurate prescription dose can be allocated to the tumor target area; and therefore, adaptive radiotherapy can be realized.

Description

technical field [0001] The invention relates to the technical field of tumor radiotherapy, in particular to a multi-mode guided self-adaptive radiotherapy system. Background technique [0002] In precise tumor radiotherapy, it is necessary to collect patient image information at an appropriate period during each fractional treatment as feedback and compare it with diagnostic images and planned images to correct setup errors and field position errors. At present, most of the clinical use is to combine the linear accelerator with a separate imaging device such as X-ray, ultrasound, infrared, etc., to obtain the image data of the patient before and during the treatment, and to analyze the target area and the target area before each treatment or treatment. The structure and position of the surrounding organs at risk are compared, and it is impossible to adjust the position of the tumor target area and the radiation dose in real time at the same time. [0003] Therefore, it is u...

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Problems solved by technology

At present, most of the clinical use is to combine the linear accelerator with a separate imaging device such as X-ray, ultrasound, infrared, etc., to obtain the image data of the patient before and during the treatment, and to analyze the target area and the target area before each treatment or treatment. Comparing the structure and position of the surrounding organs at risk, it is impossible to adjust the position of the tumor target area and the radiation dose in real time at the same time

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