Chang W, Li S Q, Williams J J, Bruch P M, Wesolowski C A, Ehrhardt J C, Kirchner P T
Department of Radiology, University of Iowa Hospitals and Clinics, Iowa City.
J Nucl Med. 1988 May;29(5):676-83.
New methods are proposed and described to examine the quality of gamma camera collimators in two special performance categories, namely, uniformity in regional efficiency and regional variations in channel tilt. These two performances are critical areas for SPECT imaging. Results obtained from experimental and commercial collimators illustrate the variability seen for these performance characteristics in currently available collimators.
提出并描述了新的方法来检测γ相机准直器在两个特殊性能类别中的质量，即区域效率的均匀性和通道倾斜的区域变化。这两种性能是单光子发射计算机断层显像（SPECT）成像的关键领域。从实验用和商用准直器获得的结果说明了目前可用准直器在这些性能特征方面存在的变异性。
