Quantitative flow ratio for evaluation of borderline coronary lesions in patients with severe aortic stenosis

P Kleczynski, A Dziewierz, L Rzeszutko… - Revista Española de …, 2022 - Elsevier
Introduction and objectives Quantitative flow ratio (QFR) is a novel noninvasive method for
evaluating coronary physiology. However, data on the QFR in patients with aortic stenosis …

Comparison of resting distal to aortic coronary pressure with angiography-based quantitative flow ratio

BE Stähli, A Erbay, J Steiner, J Klotsche… - International journal of …, 2019 - Elsevier
Background Quantitative flow ratio (QFR) is a novel, adenosine-free method for functional
coronary lesion interrogation, which is based on 3-dimensional quantitative coronary …

[HTML][HTML] Angiography-based quantitative flow ratio versus fractional flow reserve in patients with coronary artery disease and severe aortic stenosis

H Mejia-Renteria, L Nombela-Franco… - …, 2020 - eurointervention.pcronline.com
Aims: The aim of this study was to investigate the diagnostic performance of quantitative flow
ratio (QFR) in assessing the physiological relevance of coronary lesions in the presence of …

[HTML][HTML] Hyperemic versus non-hyperemic indexes for coronary physiology assessment in patients with severe aortic stenosis

P Kleczynski, A Dziewierz, L Rzeszutko… - Advances in Medical …, 2021 - Elsevier
Purpose Recent data suggests that fractional flow reserve (FFR) may underestimate
intermediate coronary stenosis in the presence of severe aortic stenosis (AS), whereas …

Validity and correlation of quantitative flow ratio with fractional flow reserve for assessment of intermediate coronary lesions

G Kasinadhuni, A Batta, AA Gawalkar… - Acta …, 2023 - Taylor & Francis
Background The angiographic percent diameter stenosis (% DS) do not assess the
physiological significance of epicardial coronary stenosis. The currently practised …

Coronary physiology in patients with severe aortic stenosis: comparison between fractional flow reserve and instantaneous wave-free ratio

R Scarsini, G Pesarini, C Zivelonghi, A Piccoli… - International Journal of …, 2017 - Elsevier
Background The functional assessment of coronary artery disease (CAD) in patients with
aortic stenosis (AS) has not been validated so far, and the best strategy to physiologically …

Diagnostic agreement of quantitative flow ratio with fractional flow reserve and instantaneous wave‐free ratio

D Hwang, KH Choi, JM Lee… - Journal of the …, 2019 - Am Heart Assoc
Background Quantitative flow ratio (QFR) has a high diagnostic accuracy in assessing
functional stenoses relevance, as judged by fractional flow reserve (FFR). However, its …

A comparison between the instantaneous wave-free ratio and resting distal coronary artery pressure/aortic pressure and the fractional flow reserve: The diagnostic …

N Shiode, T Okimoto, H Tamekiyo, T Kawase… - Internal …, 2017 - jstage.jst.go.jp
Objectives The fractional flow reserve (FFR) is an index of the severity of coronary stenosis
that has been clinically validated in several studies. The instantaneous wave-free ratio (iFR) …

Comparison of quantitative flow ratio and invasive physiology indices in a diverse population at a tertiary united states hospital

M Finizio, GD Melaku, Y Kahsay, S Beyene… - Cardiovascular …, 2021 - Elsevier
Background Quantitative flow ratio (QFR) is a technology to evaluate the coronary stenosis
significance on 3-dimensional quantitative coronary angiography. The aim of this study is to …

Angiography-based quantitative flow ratio for online assessment of coronary stenosis: FAVOR II China study

B Xu, S Tu, S Qiao, X Qu, Y Chen, J Yang… - Journal of the American …, 2017 - pure.au.dk
OBJECTIVES: To assess the diagnostic performance of quantitative flow ratio (QFR) for
diagnosis of hemodynamically-significant coronary stenosis defined by fractional flow …