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Table 5 Demonstrate sensitivity and specificity of lesion to background contrast ratio on CE-FLAIR and CE-T1WI by both observers

From: Contrast enhanced FLAIR versus contrast enhanced T1W images in evaluation of intraparenchymal brain lesions

  AUC (95% CI) P value Cut off point Sensitivity% Specificity %
Lesion to background contrast ratio on CE-T1WI (First observer) 0.634 (0.485–0.784) 0.152 0.122 63.3 58.3
Lesion to background contrast ratio on CE-T1WI (second observer) 0.628 (0.478–0.777) 0.174 0.113 61.2 50.0
Lesion to background contrast ratio on CE-FLAIR (First observer) 0.661 (0.499–0.823) 0.086 0.2341 71.4 66.7
Lesion to background contrast ratio on CE-FLAIR (second observer) 0.719 (0.555–0.882) 0.02* 0.2341 77.6 66.7