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Table 3 Sensitivity and specificity calculations for each threshold criteria method

From: Comparison of two threshold detection criteria methodologies for determination of probe positivity for intraoperative in situ identification of presumed abnormal 18F-FDG-avid tissue sites during radioguided oncologic surgery

Statistical metric 1.5-to-1 ratiometric threshold criteria method Three-sigma statistical threshold criteria method
Sensitivity TP/(TP + FN) 0.43 0.71
Specificity TN/(TN + FP) 0.85 0.60