Murray law-based quantitative flow ratio to assess left main bifurcation stenosis: selecting the angiographic projection matters.

ABSTRACT: Murray law-based quantitative flow ratio (µQFR) assesses fractional flow reserve (FFR) in bifurcation lesions using a single angiographic view, enhancing the feasibility of analysis; however, accuracy may be compromised in suboptimal angiographic projections. FFR_CT is a well-validated non-invasive method measuring FFR from coronary computed tomographic angiography (CCTA). We evaluated the feasibility of µQFR in left main (LM) bifurcations, the impact of the optimal/suboptimal fluoroscopic view with respect to CCTA, and its diagnostic concordance with FFR_CT. In 300 patients with three-vessel disease, the values of FFR_CT and µQFR were compared at distal LM, proximal left anterior descending artery (pLAD) and circumflex artery (pLCX). The optimal viewing angle

SUBMITTER: Kotoku N 

PROVIDER: S-EPMC10774209 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature