US 12,232,896 B2
Method and apparatus for determining target location of single-slot collimating plate and collimator assembly
Wen Hao Chen, Shanghai (CN); Tao Tao Li, Shanghai (CN); Yi Tian, Shanghai (CN); Jing Ming Zheng, Shanghai (CN); and Chang Qing Teng, Shanghai (CN)
Assigned to Siemens Shanghai Medical Equipment Ltd., Shanghai (CN)
Appl. No. 18/001,132
Filed by Siemens Shanghai Medical Equipment Ltd., Shanghai (CN)
PCT Filed Jun. 10, 2020, PCT No. PCT/CN2020/095439
§ 371(c)(1), (2) Date Dec. 8, 2022,
PCT Pub. No. WO2021/139088, PCT Pub. Date Jul. 15, 2021.
Prior Publication US 2023/0210480 A1, Jul. 6, 2023
Int. Cl. A61B 6/40 (2024.01); A61B 6/03 (2006.01)
CPC A61B 6/40 (2013.01) [A61B 6/032 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method for determining a target location of a single-slot collimating plate, comprising:
acquiring a first measurement signal that is collected based on a first time of air scanning when a single-slot collimating plate moves from a start location to a first location by a predetermined distance along a first direction;
acquiring a second measurement signal that is collected based on a second time of air scanning when the single-slot collimating plate moves from the start location to a second location by the predetermined distance along an opposite direction to the first direction;
determining a combined measurement signal and a combined air calibration signal based on the first measurement signal and the second measurement signal;
calibrating the combined measurement signal using the combined air calibration signal; and
determining a target location of the single-slot collimating plate based on the calibrated combined measurement signal.