Title :
A simulation study of image reconstruction for PET
Author :
Pavlopoulos, S. ; Tzanakos, G. ; Bhatia, M.
Author_Institution :
Dept. of Biomed. Eng., Rutgers Univ., Piscataway, NJ, USA
Abstract :
A program for simulating event generation in a positron emission tomography (PET) scanner is reported. The Monte-Carlo program was used to study the effects of detector size and filtering function on spatial resolution and noise artifacts in reconstructed images. It is concluded that the spatial resolution is improved as the detector size is decreased and that the more high-frequency components the filter passes, the better the resolution. However, high-frequency noise artifacts are amplified as well
Keywords :
Monte Carlo methods; computerised tomography; digital simulation; medical diagnostic computing; radioisotope scanning and imaging; HF components; HF noise artifacts; detector size; event generation simulation program; filtering function; image reconstruction; noise artifacts; nuclear medicine; positron emission tomography; spatial resolution; Discrete event simulation; Filtering; Gamma ray detection; Gamma ray detectors; Image reconstruction; Image resolution; Imaging phantoms; Positron emission tomography; Reconstruction algorithms; Spatial resolution;
Conference_Titel :
Engineering in Medicine and Biology Society, 1989. Images of the Twenty-First Century., Proceedings of the Annual International Conference of the IEEE Engineering in
Conference_Location :
Seattle, WA
DOI :
10.1109/IEMBS.1989.95898
