Oblon, McClelland, Maier & Neustadt, L.L.P.
Method and system for PET detector efficiency normalization
A method of normalizing detector elements in an imaging system is described herein. The method includes a line source that is easier to handle for a user, and decouples the normalization of the detector elements into a transaxial domain and an axial domain in order to isolate errors due to positioning of the line source. Additional simulations are performed to augment the real scanner normalization. A simulation of a simulated line source closely matching the real line source can be performed to isolate errors due to physical properties of the crystals and position of the crystals in the system, wherein the simulated detector crystals are otherwise modeled uniformly. A simulation of a simulated cylinder source can be performed to determine errors due to other effects stemming from gaps between the detector crystals.
CANON MEDICAL SYSTEMS CORPORATION
G
G01T
inventional
Peng Jeffrey Li Yi Evren Xiaoli Wenyuan
Peng Kolthammer Yang Qiang Asma Li Qi