Fig. 4From: Role of lumbar spine signal intensity measurement by MRI in the diagnosis of osteoporosis in post-menopausal womenReceiver operating characteristic (ROC) curve for M-score for the discrimination of osteoporotic from non-osteoporotic females revealed that by using a threshold of 3.5 as a cutoff value had a sensitivity of 93.3%, specificity 83.5%, PPV 50%, and NPV 98.6% at a P value < 0.0001Back to article page