US 12,138,484 B2
Method and system for checking consistency between radiotherapy equipment isocenter and treatment isocenter
Tianchang Gou, Xi'an (CN); Jinsheng Li, Shenzhen (CN); and Hao Yan, Xi'an (CN)
Assigned to Our United Corporation, Shaanxi (CN); and Shenzhen Our New Medical Technologies Development Co., Ltd., Shenzhen (CN)
Appl. No. 17/259,913
Filed by OUR UNITED CORPORATION, Xi'an (CN); and SHENZHEN OUR NEW MEDICAL TECHNOLOGIES DEVELOPMENT CO., LTD., Shenzhen (CN)
PCT Filed Feb. 1, 2019, PCT No. PCT/CN2019/074509
§ 371(c)(1), (2) Date Jan. 12, 2021,
PCT Pub. No. WO2020/010842, PCT Pub. Date Jan. 16, 2020.
Claims priority of application No. PCT/CN2018/095470 (WO), filed on Jul. 12, 2018.
Prior Publication US 2021/0290981 A1, Sep. 23, 2021
Int. Cl. A61N 5/10 (2006.01); G06T 11/00 (2006.01)
CPC A61N 5/1075 (2013.01) [A61N 5/1042 (2013.01); A61N 5/1045 (2013.01); A61N 5/1047 (2013.01); A61N 5/1049 (2013.01); A61N 5/1081 (2013.01); G06T 11/006 (2013.01); A61N 2005/1056 (2013.01); A61N 2005/1076 (2013.01); G06T 2211/436 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for checking a consistency between a radiotherapy equipment isocenter and a treatment isocenter, the method comprising:
acquiring projection data from a detector and generating image data based on the projection data, wherein the image data comprises a light spot and a shading located in the light spot, and the light spot and the shading are formed by a radiation beam generated by a treatment head of the radiotherapy equipment and then being blocked by a radiation blocking body; and
determining an offset between the radiotherapy equipment isocenter and the treatment isocenter based on the image data.