Park H M, Oppenheim B, Burt R, Siddiqui A, Wellman H, Appledorn R, Lewis S
Radiology. 1982 Jul;144(2):435-7. doi: 10.1148/radiology.144.2.7089303.
To evaluate the usefulness of high-contrast film copying as an economical means of enhancing contrast in thallium 201 cardiac images, stress and rest studies of 47 patients with and 19 patients without coronary artery disease were evaluated. A total of 66 sets of four different image formats were independently interpreted by five observers. The analysis of the receiver operating characteristic curves suggested that the high-contrast film copies were superior to their original analog images and comparable with computer-processed images in diagnostic yield. It appears that contrast enhancement by simple film copying can improve the accuracy of 201Tl image interpretation.
为评估高对比度胶片复制作为增强铊 201 心肌图像对比度的一种经济手段的实用性，对 47 例有冠状动脉疾病和 19 例无冠状动脉疾病患者的负荷及静息研究进行了评估。五名观察者对总共 66 组四种不同图像格式进行了独立解读。对接受者操作特征曲线的分析表明，高对比度胶片复制图像在诊断效能上优于其原始模拟图像，且与计算机处理图像相当。看来，通过简单的胶片复制来增强对比度可提高铊 201 图像解读的准确性。
