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Table 4 The diagnostic performance of uterine arteries’ RI, PI, and S/D ratios in discrimination of both the infertile and fertile groups

From: Role of uterine artery Doppler in assessment of unexplained infertility

Item Cut-off Sensitivity Specificity PPV NPV Accuracy
RI >0.67 100% 96.7% 97.5% 100% 98.6%
PI >1.95 95% 86.7% 90.47% 92.86% 91.42%
S/D >3 100% 96.7% 97.56% 100% 98.57%