Kelsey C A, Moseley R D, Brogdon B G, Bhave D G, Hallberg J
AJR Am J Roentgenol. 1977 Aug;129(2):205-8. doi: 10.2214/ajr.129.2.205.
A test series of radiographs was developed by duplicating normal chest radiographs with superimposed masks containing either a 0.5, 1.0, or 1.5 cm pseudolesion. Nine observers participated in the study. Receiver operating characteristic curves were formed and the responses from radiologists and physicists compared. The accuracy rate for detecting 1.0 and 1.5 cm lesions was 44%; for 0.5 cm lesions, 8%. Lesions located in the upper left quadrant were detected with an accuracy of 56% compared to 29% for those in the lower left quadrant.
通过复制正常胸部X光片并叠加含有0.5厘米、1.0厘米或1.5厘米假病灶的面罩，制作了一系列X光测试片。九名观察者参与了该研究。绘制了受试者工作特征曲线，并比较了放射科医生和物理学家的反应。检测1.0厘米和1.5厘米病灶的准确率为44%；对于0.5厘米的病灶，准确率为8%。位于左上象限的病灶检测准确率为56%，而位于左下象限的病灶检测准确率为29%。
