Fig. 4From: T1ρ, T2 and T2* mapping of lumbar intervertebral disc degeneration: a comparison studyReceiver operating characteristic (ROC) analysis. Graphs show ROC curves of T1ρ, T2 and T2* mapping in nucleus pulposus (NP) for detecting early degeneration (Pfirrmann grade II-III, A) and advanced degeneration (Pfirrmann grade IV–V, B). Numbers are areas under the curves with 95% confidence intervals in parenthesesBack to article page