Title :
Compact Compton camera design: parameters and imaging algorithms
Author :
Antich, P. ; Parkey, R. ; Slavin, N. ; Tsyganov, E. ; Zinchenko, A.
Author_Institution :
Southwestern Med. Center, Texas Univ., Dallas, TX, USA
Abstract :
This study presents results of Monte Carlo simulations of a compact Compton camera design using the GEANT-based computer code. The proposed system is a sensitive SPECT device made of semiconductor detectors capable of providing angular resolutions of about 1 mrad. To accurately model the camera, the GEANT code was modified to take into account pre-collision motion of elections, the so-called Doppler effect. A new algorithm for three-dimensional image reconstruction based on clustering of individual events has been developed and proven on clustering of individual events has been developed and proven with Monte Carlo phantoms for a Compton camera and with phantoms and small animal studies for a PET machine
Keywords :
Compton effect; Monte Carlo methods; biomedical equipment; cameras; image reconstruction; semiconductor counters; single photon emission computed tomography; 1E-3 rad; Doppler effect; GEANT-based computer code; Monte Carlo phantoms; Monte Carlo simulations; PET machine; angular resolution; compact Compton camera design; imaging algorithms; medical diagnostic imaging; medical instrumentation; nuclear medicine; semiconductor detectors; sensitive SPECT device; small animal studies; three-dimensional image reconstruction algorithm; Algorithm design and analysis; Animals; Cameras; Clustering algorithms; Detectors; Doppler effect; Image reconstruction; Imaging phantoms; Monte Carlo methods; Nominations and elections;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2000 IEEE
Conference_Location :
Lyon
Print_ISBN :
0-7803-6503-8
DOI :
10.1109/NSSMIC.2000.949319
