Treatment planning system, device for calculating a scanning path and particle therapy system

摘要

In a particle therapy treatment planning system for creating treatment plan data, the movement of a target (patient's affected area) is extracted from plural tomography images of the target, and the direction of scanning is determined by projecting the extracted movement on a scanning plane scanned by scanning magnets. Irradiation positions are arranged on straight lines parallel with the scanning direction making it possible to calculate a scanning path for causing scanning to be made mainly along the direction of movement of the target. The treatment planning system can thereby realize dose distribution with improved uniformity.

主权项

1. A treatment planning system for creating treatment plan information for particle therapy, comprising:
an input device; an arithmetic device for performing arithmetic processing based on a result of input to the input device and creating treatment plan information; and a display device for displaying the treatment plan information, wherein the arithmetic device calculates a scanning path by setting a pre-specified direction as a main direction for scanning irradiation positions with an ion beam using scanning magnets, the pre-specified direction being along a direction of movement of a target of treatment, and wherein the display device displays the direction of movement of the target of treatment.