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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