Oblon, McClelland, Maier & Neustadt, L.L.P.
Image-based point-spread-function modelling in time-of-flight positron-emission-tomography iterative list-mode reconstruction
A method of calculating a system matrix for time-of-flight (TOF) list-mode reconstruction of positron-emission tomography (PET) images, the method including determining a TOF geometric projection matrix G including effects of object attenuation; estimating an image-blurring matrix R in image space; obtaining a diagonal matrix D that includes TOF-based normalization factor; and calculating the system matrix H as H=DGR.
TOSHIBA MEDICAL SYSTEMS CORPORATION The Regents of the University of California
G G G G G
G06F G06T G06T G06F G06T
inventional inventional additional inventional additional
Jian Hongwei Wenli Jinyi
Zhou Ye Wang Qi