Fig. 2
From: Development and performance evaluation of a deep learning lung nodule detection system
Scan selection flowchart for the reader performance test. From the chest CTs scanned in our hospital that were not used for algorithm training, 50 in which nodules were mentioned in the radiologist’s report and 50 in which no nodule was mentioned were randomly selected retrospectively. These scans were examined by two board-certified radiologists who identified nodules. Three of these scans were excluded because > 10 nodules were identified, after which 30 images with nodules and 10 without nodules were randomly selected and used for the reader performance test