Paans A M, Vaalburg W, Woldring M G
J Nucl Med. 1985 Dec;26(12):1466-71.
Based on a double-headed rotating uncollimated scintillation camera system, a positron imaging device was developed. After a rotating data acquisition in coincidence mode, 16 transverse section images are reconstructed by back projection. To obtain a uniform response, a limited angle reconstruction option is incorporated in this process. After correction for the system response by a three-dimensional deconvolution technique, the 16 transverse section images are stored on disk as a standard patient study for further analysis. The system can also be operated in a stationary mode. In this mode longitudinal tomographic images are obtained. Return to single photon scintigraphy is possible by remounting the collimators and by switching off the coincidence electronics.
基于双头旋转非准直闪烁相机系统，开发了一种正电子成像设备。在符合模式下进行旋转数据采集后，通过反投影重建16个横断面图像。为了获得均匀响应，在此过程中采用了有限角度重建选项。通过三维去卷积技术校正系统响应后，将16个横断面图像作为标准患者研究存储在磁盘上以供进一步分析。该系统也可以在静止模式下运行。在这种模式下可获得纵向断层图像。通过重新安装准直器并关闭符合电子设备，可以恢复到单光子闪烁扫描。
