J Korean Radiol Soc.  1988 Dec;24(6):1151-1157. 10.3348/jkrs.1988.24.6.1151.

Analysis of observer performance in detecting radiographic signals using ROC approach


Analysis in terms of the receiver operating characteristic curve (ROC) has recentely been applied to evaluatemedical imaging technique. This paper presents a brief description of ROC and shows how it provides a measure ofdiagnostic observer performance. Test radiographs of 5 by 5cm film, were shown to 4 observers. Radiographscontaining 2mm lucite bead plus noise, or noise only, were obtained with 3 film-screen combinations as AOG+KS,AOG+KH, and AO+KH. Individual ROC curves of 4 observers and 3 film-screen combinations, and pooled ROC cureveswere anlaysed. No definite difference of oserver performance between 4 obserfer, and there was superior ROC curvein AO+KH combination than others. The results demonstraate that ROC analysis was useful for evaluating observerperformance in detecting task of diagnostic imaging technique.

MeSH Terms

Diagnostic Imaging
Polymethyl Methacrylate
ROC Curve
Polymethyl Methacrylate
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