Fig. 6From: Dual-energy CT virtual non-calcium: an accurate method for detection of knee osteoarthritis-related edema-like marrow signal intensityShows ROC curves calculated from CT numbers derived from DECT VNCa images for two independent readers for the differentiation of knee joint osteoarthritis with and without ELMSI. The area under the curve was 0.961 for Reader 1 and 0.992 for Reader 2 (Blue represents Reader 1 and green represents Reader 2)Back to article page