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The sensitivity, specificity, and positive and negative predictive values of stress MR perfusion imaging for the detection of significant coronary artery disease by fractional flow reserve measurements using various thresholds. Values in parentheses are 95% confidence intervals.36,37 MR: magnetic resonance; FFR: fractional flow reserve; DS: angiographic stenosis; PPV: positive predictive value; NPV: negative predictive value.
