Clinical Utility of Novel Fractional Flow Reserve Pullback for Individual Lesion Contribution in Serial Disease.

OBJECTIVES Fractional flow reserve (FFR) pullback is frequently used to assess serially diseased arteries, but has been shown to be inaccurate due to physiological interaction between individual lesions. We evaluated the clinical utility of a novel solution that improves estimation of true FFR contribution of each stenosis in the presence of serial disease. METHODS Ten interventional cardiologists were presented with tiered information for 18...