학술논문
Modular miniPET: A comparison between 10 and 12 detector modules
Document Type
Conference
Source
2012 IEEE Nuclear Science Symposium and Medical Imaging Conference Record (NSS/MIC) Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), 2012 IEEE. :2598-2602 Oct, 2012
Subject
Language
ISSN
1082-3654
Abstract
By means of computer simulations, scatter fraction, spatial resolution and sensitivity of two 10-detector-module small-animal PET (r77-miniPET and r106-miniPET), are analyzed and compared to the performance of the 12-detector-module PET scanner miniPET II [1]. All simulations have been performed with the well validated Geant4 Application for Emission Tomography (GATE) [2]. Sensitivity and scatter fraction speak in favor of the 10-module scanner: a clear improvement in count rate and scatter fraction was found. Moreover, steeper slopes of noise equivalent count rate curves at low levels of activity was found. Spatial resolution instead was found to be better in the 12-module scanner.