Fig. 6
From: Three-dimensional substructure measurements for the differential diagnosis of ground glass nodules
Receiver operating characteristic curves (ROC) of the differences between the maximum and peak CT numbers (M-P) and the mean changes in velocity of the M-P (V. (M-P)) of ground-glass nodules (GGNs) for differentiating between pre-invasive adenocarcinomas (PIAs) and invasive adenocarcinomas (IACs). Areas under the curves (AUC) for M-P and V. (M-P) were 0.810 and 0.805 respectively, including a relatively good sensitivity and specificity for differentiating the threshold values of 489.6 Hounsfield units (HU) and 11.01 HU/day respectively