Monte Carlo simulation of PET performance measurements for EXACT47 at NIRS
1997 年 17 巻 2 号 p. 83-93
詳細
1997 年 17 巻 2 号 p. 83-93
Monte Carlo simulation results were compared with PET performance measurements for SIEMENS - CTI ECAT EXACT47 at National Institute of Radiological Sciences (NIRS). The simulation program, SIMSET, was used with extensions for positron - range, emission - angle non colinearity, and detector - simulation. The present paper focuses on sensitivity, spatial - resolution, and scatter - fraction. In addition, variance - distribution was simulated and compared with measurements and theoretical calculations. The simulation reproduced measurements well about sensitivity, spatial - resolution, and variance-distribution. About scatter - fraction, the present simulation underestimated measurements slightly.
