Sámal M, Sůrová H, Kárný M, Maríková E, Michalová K, Dienstbier Z
Eur J Nucl Med. 1986;12(5-6):280-3. doi: 10.1007/BF00251988.
Factor analysis of dynamic radionuclide studies provides their decomposition into the images and time-activity curves corresponding to the underlying dynamic structures. The method is based on the analysis of study variance and on the subsequent differential imaging of its principal components into a simplified factor space. By changing the amount and the composition of the variance processed in the analysis it is possible to enhance the factors that are important for diagnosis while the less important factors can be suppressed. In our report, a short theoretical review of the problem is given and illustrated by the analysis of dynamic cholescintigraphy. It is shown that a suitable choice of region and/or the temporal interval of interest enables the differential evaluation of such intrahepatic compartments, which could not be observed without enhancement.
动态放射性核素研究的因子分析可将其分解为与潜在动态结构相对应的图像和时间-活度曲线。该方法基于对研究方差的分析以及随后将其主成分在简化因子空间中进行差异成像。通过改变分析中处理的方差量和组成，可以增强对诊断重要的因子，同时抑制不太重要的因子。在我们的报告中，对该问题进行了简短的理论回顾，并通过动态胆系闪烁显像分析进行了说明。结果表明，对感兴趣区域和/或时间间隔进行适当选择，能够对肝内各腔室进行差异评估，而在未增强的情况下无法观察到这些腔室。
