Fig. 3From: Role of lumbar spine signal intensity measurement by MRI in the diagnosis of osteoporosis in post-menopausal womenReceiver operating characteristic (ROC) curve for SNRL1–L4 for the discrimination of osteoporotic from non-osteoporotic females revealed that by using a threshold of 104.5 as a cutoff value had a sensitivity of 94%, specificity 60%, PPV 30.6%, and NPV 98% at a P value = 0.0043Back to article page