Beam station treatment planning and radiation delivery method

By adopting the beam station delivery method in the radiation therapy system, the discrete position and orientation of the patient platform, combined with the delivery method of rotating radio sources, the problems of insufficient and uneven radiation dose in the prior art are solved, and efficient and accurate radiation therapy is achieved.

CN119701229APending Publication Date: 2025-03-28REFLEXION MEDICAL INC
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Patent Information

Application Number
CN202411902219.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2018-02-13
Filing Date
2019-02-13
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

Existing radiation therapy systems are difficult to ensure that the target area receives sufficient radiation dose when continuous movement of the patient platform and may result in under- or uneven doses due to system failure or patient movement.

Method used

The beam station delivery method is adopted to deliver the radiation to the target area intersecting the beam plane by moving the patient platform to a series of discrete positions and orientations and stopping at these positions and orientations.

Benefits of technology

It realizes efficient and even delivery of radiation doses when the patient's platform is stationary, reduces the problem of insufficient dose due to platform movement or system failure, and improves the accuracy and efficiency of treatment.

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Abstract

Described herein are methods of beam station delivery for radiotherapy in which a patient platform is moved to a series of discrete patient platform positions or beam stations determined during a treatment plan and stopped at each of these positions as a radiation source rotates about the patient, radiation is delivered to a target area that intersects the radiation beam path, and then moved to the next position after a prescribed dose of radiation (e.g., according to the calculated fluence map) for that position has been delivered to the patient.
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