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1. (WO2018218684) RADIOTHERAPY DEVICE CALIBRATION METHOD, IMAGE CALIBRATION TOOL, STORAGE MEDIUM, AND PROGRAM PRODUCT

Pub. No.:    WO/2018/218684    International Application No.:    PCT/CN2017/087078
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Sat Jun 03 01:59:59 CEST 2017
IPC: A61N 5/00
Applicants: OUR UNITED CORPORATION
西安大医集团有限公司
Inventors: LI, Jinsheng
李金升
YAN, Hao
闫浩
Title: RADIOTHERAPY DEVICE CALIBRATION METHOD, IMAGE CALIBRATION TOOL, STORAGE MEDIUM, AND PROGRAM PRODUCT
Abstract:
A radiotherapy device calibration method, an image calibration tool, a storage medium, and a program product. The radiotherapy device calibration method uses an imaging body arranged within a preset distance range of a central point such as a radiotherapy device to perform error calibration of the radiotherapy device, the method comprising: performing imaging of the imaging body by means of an imaging system to obtain actual imaging of the imaging body (101); determining the imaging deviation between the actual imaging of the imaging body and the theoretical imaging thereof, the theoretical imaging being pre-determined on the basis of the theoretical position of the imaging system and the spatial position of the imaging body in a machine frame (102); and, on the basis of the imaging deviation, determining the system error of the imaging system (103). Using said method, calibration of the imaging system can be implemented without moving a treatment bed, avoiding the impact of the precision of the movement of the treatment bed on the accuracy of the calibration of the imaging system, and thereby improving the accuracy of calibration.