Introduction Despite of the wide evidence of use fractional flow reserve (FFR), isolated
angiography evaluation is still the main tool to indicate percutaneous coronary intervention …

Objectives We aimed to provide robust performance estimates for quantitative flow ratio
(QFR) in assessment of intermediary coronary lesions. Background Angiography‐based …

Background: Quantitative flow ratio (QFR) is a novel approach to derive fractional flow
reserve (FFR) from coronary angiography. This study sought to evaluate the reproducibility …

Background Quantitative flow ratio (QFR) is a tool for physiological lesion assessment based
on invasive coronary angiography. Aims We aimed to assess the reproducibility of QFR …

Introduction: The assessment of coronary lesions severity has always been a relevant topic
in the management of the patient undergoing coronary angiography. Fractional flow reserve …

Background: Quantitative flow ratio (QFR) is a novel angiography-based method for deriving
fractional flow reserve (FFR) without pressure wire or induction of hyperemia. The accuracy …

Aims To evaluate diagnostic accuracy of quantitative flow ratio (QFR). A novel method was
used for non-invasive functional assessment of intermediate coronary lesions. Fractional …

Objectives: The aim of this study was to compare diagnostic performance between
quantitative flow ratio (QFR) derived from coronary angiography and fractional flow reserve …

Objectives The aim of this prospective multicenter study was to identify the optimal approach
for simple and fast fractional flow reserve (FFR) computation from radiographic coronary …

Quantitative flow ratio (QFR) is a computation of fractional flow reserve (FFR) based on
invasive coronary angiographic images. Calculating QFR is less invasive than measuring …