1. Optical Coherence Tomographic Image of an Angiographically Borderline Lesion With a Significant Fractional Flow Reserve

    Optical Coherence Tomographic Image of an Angiographically Borderline Lesion With a Significant Fractional Flow Reserve

    A 42-year-old diabetic woman presented with left ventricular dysfunction late after an anterior wall myocardial infarction. Fluoro-deoxy glucose-positron emission tomography showed viability in the left anterior descending artery (LAD) territory. Coronary angiogram ( A , Online Video 1 ) showed a significant mid-LAD disease which was stented. Fractional flow reserve (B) done for the borderline lesions in the right coronary artery (RCA) was significant (0.53). Optical coherence tomography (C, D, E) done for the RCA lesion showed lotus root–like appearance ( 1 ) with multiple channels of varying diameters corresponding to the hazy lesion in the mid-RCA. The contrast flowing through these channels ...

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