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Fig. 4 | BioMedical Engineering OnLine

Fig. 4

From: Accuracy of intravascular ultrasound-derived virtual fractional flow reserve (FFR) and FFR derived from computed tomography for functional assessment of coronary artery disease

Fig. 4

Sensitivity specificity and Youden index for different cutoff values of AccuFFRivus and AccuFFRct to predict FFR ≤  0.80. A The optimal AccuFFRivus cutoff value for predicting FFR ≤ 0.80 was 0.80 (sensitivity 96.6%, specificity 85.7%, Youden index 0.823). B The optimal fractional AccuFFRct cutoff value for predicting FFR ≤ 0.80 was 0.80 (sensitivity 89.7%, specificity 85.7%, Youden index 0.754)

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