Title :
Design study of a high-resolution breast-dedicated PET system built from cadmium zinc telluride detectors
Author :
Peng, Hao ; Olcott, P.D. ; Pratx, G. ; Foudray, A.M.K. ; Chinn, G. ; Levin, C.S.
Author_Institution :
Stanford Univ., Stanford
fDate :
Oct. 26 2007-Nov. 3 2007
Abstract :
We are developing a dual-panel cadmium zinc telluride (CZT) detector positron emission tomography (PET) system dedicated to breast imaging. The proposed system consists of two 4 cm thick 12 x 15 cm2 area CZT panels with adjustable separation, which can be put in close-proximity to breasts and/or axillary nodes and results in high photon sensitivity. In this project, the performance of the proposed CZT dual panel PET system was investigated using Monte-Carlo simulation. Expected system performance is predicted due to CZT´s superior energy resolution, the high photon sensitivity, and the uniform spatial resolution throughout field-of-view (FOV). The dependency of system reconstructed resolution on depth-of-interaction (DOI) resolution was also studied.
Keywords :
Monte Carlo methods; biological organs; biomedical imaging; gynaecology; positron emission tomography; Monte-Carlo simulation; axillary nodes; depth-of-interaction resolution; dual-panel cadmium zinc telluride detector; field-of-view; high-resolution breast-dedicated PET; photon sensitivity; positron emission tomography; size 4 cm; uniform spatial resolution; Breast; Cadmium compounds; Detectors; Energy resolution; High-resolution imaging; Image reconstruction; Positron emission tomography; Spatial resolution; System performance; Zinc compounds;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2007. NSS '07. IEEE
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-0922-8
Electronic_ISBN :
1095-7863
DOI :
10.1109/NSSMIC.2007.4436925
