Vessel Imaging Using Optical Coherence Tomography for Plaque Morphology and Vessel Fractional Flow Reserve

Overview

The aim of this prospective, investigator-initiated study is to evaluate the diagnostic accuracy and correlations between mopphometric indices: luminal and qualitative parameters assessed by optical coherence tomography (OCT) including minimal lumen area, plaque type, presence of thin cap fibroatheroma and a functional index - angiography based vessel fractional flow reserve (vFFR) among patients with chronic coronary syndrome identified with intermediate grade coronary stenosis.

This is a prospective, single center, non-randomized, single-arm, investigator-initiated study evaluating diagnostic accuracy and correlations between morphometric indices: luminal and qualitative parameters evaluated by optical coherence tomography (OCT) including minimal lumen area, plaque stratification into fibrotic, calcific, lipidic plaque, or thin cap fibroatheroma and a functional index - angiography based vessel fractional flow reserve (vFFR) among patients with chronic coronary syndrome identified with intermediate grade coronary stenosis. The additional objectives encompass assessing the influence of age, sex, diabetes mellitus, renal dysfunction on the relationship between vFFR results and morphometric indices of intermediate coronary stenosis. We hypothesized that in patients with intermediate grade coronary stenosis in chronic coronary syndrome a positive correlation exists between vFFR and the morphometric parameters associated with coronary stenosis.

Conditions