US 11,857,357 B2
Imaging systems and methods
Wenying Wang, Houston, TX (US); and Tao Feng, Houston, TX (US)
Assigned to SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD., Shanghai (CN)
Filed by SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD., Shanghai (CN)
Filed on Sep. 5, 2021, as Appl. No. 17/446,969.
Prior Publication US 2023/0072958 A1, Mar. 9, 2023
Int. Cl. G01T 1/164 (2006.01); A61B 6/03 (2006.01); A61B 6/00 (2006.01)
CPC A61B 6/5235 (2013.01) [A61B 6/037 (2013.01); G01T 1/1642 (2013.01)] 20 Claims
OG exemplary drawing
 
20. A collimator for single-photon emission computed tomography (SPECT) imaging comprising:
a first set of first pinholes; and
a second set of second pinholes, wherein each second pinhole of the second set of second pinholes is equipped with a filter configured to filter photons, the first set of first pinholes and the second set of second pinholes being arranged on a same plane of the collimator.