Title :
NEMA evaluation of the first and second generation of the Ecat Exact and Ecat Exact HR family of scanners
Author :
Eriksson, L. ; Wienhard, K. ; Eriksson, M. ; Casey, M.E. ; Knoess, C. ; Bruckbauer, T. ; Hamill, J. ; Mulnix, T. ; Vollmar, S. ; Bendriem, B. ; Heiss, W.D. ; Nutt, R.
Author_Institution :
CTI PET Syst. Inc, Knoxville, TN, USA
Abstract :
The first and second generation of Exact and Exact HR family of scanners has been evaluated in terms of NEC and count rate capabilities. The new NEMA standard was used for the evaluation. In spite of improved electronics and improved count rate capabilities, the peak NEC was found to be fairly constant between the generations. The results are discussed in terms of the different electronic solutions for the two generations and its implications on system dead time and NEC count rate capability.
Keywords :
positron emission tomography; Ecat Exact HR scanners; Ecat Exact scanners; NEC count rate capability; NEMA standard; improved count rate capabilities; improved electronics; Councils; Detectors; Helium; High-resolution imaging; Image resolution; Imaging phantoms; National electric code; Positron emission tomography; Production systems; Spatial resolution;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2001 IEEE
Print_ISBN :
0-7803-7324-3
DOI :
10.1109/NSSMIC.2001.1008556
