Using AUC to study perceptual di erence model suitability for the detection task on MR image

Since the ultimate goal of medical images is to help radiologists to gain a high diagnostic accuracy, evaluating the medical image quality from the radiologists' perspective is a useful alternative compared to optimal observer approach. While several existing perceptual difference models are adopted toward this end, few works were conducted to evaluate the suitability of the models w.r.t. the diagnostic task performance. This study is trying to address this problem.