Colsher J G
Phys Med Biol. 1980 Jan;25(1):103-15. doi: 10.1088/0031-9155/25/1/010.
Fully three-dimensional positron emission tomography is considered and a reconstruction algorithm derived. The reconstruction problem is formulated mathematically as a three-dimensional convolution integral of a point spread function with an unknown positron activity distribution and is solved by Fourier transform methods. Performance of the algorithm is evaluated using both simulated phantom data produced by a Monte Carlo computer program and phantom data obtained from the University of Chicago/Searle Positron Camera. It is concluded that the method is computationally feasible and results in accurate reconstructions.
考虑了全三维正电子发射断层扫描，并推导了一种重建算法。重建问题在数学上被表述为点扩散函数与未知正电子活度分布的三维卷积积分，并通过傅里叶变换方法求解。使用由蒙特卡罗计算机程序生成的模拟体模数据以及从芝加哥大学/塞尔正电子相机获得的体模数据来评估该算法的性能。得出的结论是，该方法在计算上是可行的，并且能够实现准确的重建。
