Title :
Validation of scatter simulation in 3D and count-rate dependent component-based normalization for the HRRT
Author :
Sune H. Keller;Claus Svarer;Merence Sibomana
Author_Institution :
Department of Clinical Physiology, Nuclear Medicine and PET, Rigshospitalet, University of Copenhagen, Denmark
Abstract :
In this work we will use phantom data to do a first evaluation of the anticipated benefits of count-rate dependent version of CBN (CRD-CBN) with patient evaluation planned in the near future. CRD-CBN was recently implemented as part of the HRRT Users Software expecting it to yield a reduction of artifacts in cases where there are large differences in count-rates between the normalization and the emission data being reconstructed as it is often the case in dynamic protocols. We expect quantification (ROI averages) to be preserved as the main artifact reduced by CRD-CBN is noise.
Keywords :
"Phantoms","Positron emission tomography","Image reconstruction","Standards","Brain modeling","Solid modeling","Three-dimensional displays"
Conference_Titel :
Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), 2014 IEEE
DOI :
10.1109/NSSMIC.2014.7430779
