Volumetric assessment of lesion severity with optical coherence tomography: relationship with fractional flow reserve

Giulio Guagliumi1*, MD, FESC; Vasile Sirbu1, MD; Christopher Petroff, MS; Davide Capodanno3, MD, PhD; Giuseppe Musumeci1, MD; Hirosada Yamamoto, MD; Amr Elbasiony2, PhD; Christopher Brushett2, MS; Aleksandre Matiashvili1, MD; Nikoloz Lortkipanidze1, MD; Orazio Valsecchi1, MD; Hiram G. Bezerra4, MD, PhD; Joseph M. Schmitt2, PhD