Diagnostic Performance of Intracoronary Optical Coherence Tomography-Modulated Quantitative Flow Ratio for Assessing Coronary Stenosis.

The correlation and agreement with FFR are significantly better for OCT-μFR than μQFR; (2) Using FFR ≤ 0.80 to define physiologically significant coronary stenosis, OCT-μFR showed a trend toward higher overall diagnostic performance over μQFR; (3) For vessels with suboptimal angiographic image quality or tandem lesions, OCT-μFR is superior to μQFR in identifying physiologically significant stenosis; (4) The diagnostic performance of OCT-μFR remains comparable in vessels with patients with prior MI or bifurcation lesions; (5) OCT-μFR has high usability in vessels with incomplete lesion coverage by OCT.

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