Quantitative Flow Ratio Based on Murray Fractal Law: Accuracy of Single Versus Two Angiographic Views.

ABSTRACT:

Background

Murray bifurcation fractal law-based quantitative flow ratio (QFR), namely, μQFR, is a novel method for the fast computation of fractional flow reserve (FFR) from a single angiographic view. We aimed to compare the diagnostic accuracy of computational QFR based on single vs 2 angiographic views in patients with intermediate coronary stenosis.

Methods

The algorithm of μQFR was extended to develop a Murray law-based 3-dimensional (3D) μQFR from 2 angiographic projections. Patients with both angiographic views acquired according to the protocol-specified recommended views in the FAVOR (Functional Diagnostic Accuracy of Quantitative Flow Ratio in Online Assessment of Coronary Stenosis) II China study were included. μQFR was computed separately from the first (μQFR1) a

SUBMITTER: Ding D 

PROVIDER: S-EPMC11307523 | biostudies-literature | 2022 Sep-Oct

REPOSITORIES: biostudies-literature