Normalization for 3D PET with a low-scatter planar source and measured geometric factors.
Normalization for 3D PET with a low-scatter planar source and measured geometric factors.
复制标题
使用低散射平面源和测量的几何因子对 3D PET 进行归一化。
DOI：
10.1088/0031-9155/43/4/023
复制
发表时间：
1998
影响因子：
3.5
通讯作者：
Ruth,TJ
中科院分区：
文献类型：
--
作者：
Oakes,TR;Sossi,V;Ruth,TJ
对于 3D PET 标准化方法，必须在统计精度和单个检测器或响应线 (LOR) 保真度之间取得平衡。具有潜在最佳 LOR 准确度的方法往往在统计上较差，而提高统计质量的技术往往会降低单个检测器的保真度。我们为 ECAT 953B 扫描仪 (Siemens/CTI) 开发并实施了一种 3D PET 归一化方法，该方法将探测器归一化因子 (NF) 确定为测量几何因子 (GF) 和单个探测器效率因子的四维矩阵的乘积。
For 3D PET normalization methods, a balance must be struck between statistical accuracy and individual detector or line-of-response (LOR) fidelity. Methods with potentially the best LOR accuracy tend to be statistically poor, while techniques to improve the statistical quality tend to reduce the individual detector fidelity. We have developed and implemented a 3D PET normalization method for our ECAT 953B scanner (Siemens/CTI) that determines the detector normalization factors (NFs) as a product of a four-dimensional matrix of measured geometric factors (GFs) and single detector efficiency factors.