Loken M K, Ponto R A, Kronenberg R S, Williams L E, Goldberg M E
Am J Roentgenol Radium Ther Nucl Med. 1974 Aug;121(4):761-71. doi: 10.2214/ajr.121.4.761.
Xenon 133 and 2 scintillation cameras arranged to view both anterior and posterior lung fields are being used routinely for evaluation of pulmonary function. Scintiphotograms are obtained from both cameras throughout the course of both perfusion and ventilation portions of the study. In addition, data from both cameras are digitized and stored on line in a dedicated computer for further analysis. Computer processing of data permits quantitative information to be obtained on perfusion, ventilation and clearance of the radioactive gas from selected regions of the anterior and posterior lung fields. Ventilation-perfusion ratios and washout times are likewise calculated by computer.
氙133和两台闪烁照相机（这两台照相机设置为可同时观察肺部的前后野）被常规用于评估肺功能。在研究的灌注和通气部分的整个过程中，从两台照相机都获取闪烁照片。此外，来自两台照相机的数据被数字化并在线存储在一台专用计算机中以供进一步分析。数据的计算机处理使得能够从肺部前后野的选定区域获得有关放射性气体的灌注、通气和清除的定量信息。通气-灌注比和洗脱时间同样由计算机计算得出。
