Articles with "free ratio" as a keyword



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Instantaneous wave‐free ratio for guiding treatment of nonculprit lesions in patients with acute coronary syndrome: A retrospective study

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Published in 2021 at "Catheterization and Cardiovascular Interventions"

DOI: 10.1002/ccd.30025

Abstract: The aim of this study was to analyze the feasibility of a physiological coronary evaluation with the instantaneous wave‐free ratio (iFR) of nonculprit lesions in patients with acute coronary syndrome (ACS) successfully revascularized. read more here.

Keywords: patients acute; nonculprit lesions; wave free; free ratio ... See more keywords
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Instantaneous wave-free ratio and fractional flow reserve in clinical practice

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Published in 2018 at "Netherlands Heart Journal"

DOI: 10.1007/s12471-018-1125-1

Abstract: ObjectivesTo compare fractional flow reserve (FFR) and instantaneous wave-free ratio (iFR) measurements in an all-comer patient population with moderate coronary artery stenoses.BackgroundVisual assessment of the severity of coronary artery stenoses is often discordant in moderate… read more here.

Keywords: fractional flow; instantaneous wave; flow reserve; free ratio ... See more keywords
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INSTANTANEOUS WAVE-FREE RATIO SCOUT PULLBACK (IFR SCOUT) PRE-ANGIOPLASTY PREDICTS HEMODYNAMIC OUTCOME IN HUMANS WITH CORONARY ARTERY DISEASE: PRIMARY RESULTS OF INTERNATIONAL MULTICENTRE IFR GRADIENT REGISTRY

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Published in 2017 at "Journal of the American College of Cardiology"

DOI: 10.1016/s0735-1097(17)34439-x

Abstract: Background: In tandem and diffuse disease, offline analysis of continuous instantaneous wave-free ratio (iFR) pullback measurement has been demonstrated to accurately predict the physiological outcome of revascularization. However, the accuracy of the real-time online analysis… read more here.

Keywords: ifr scout; instantaneous wave; free ratio; ifr ... See more keywords
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Instantaneous wave-free ratio cutoff values for nonculprit stenosis classification in patients with ST-segment elevation myocardial infarction (an iSTEMI substudy)

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Published in 2020 at "Coronary Artery Disease"

DOI: 10.1097/mca.0000000000000879

Abstract: Objectives The instantaneous wave-free ratio cutoff value of 0.90 had a negative predictive value of 89%. Acute instantaneous wave-free ratio 0.93 had a negative predictive value of 100%. Acute instantaneous wave-free ratio read more here.

Keywords: wave free; instantaneous wave; ratio cutoff; free ratio ... See more keywords
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Comparison of Instantaneous Wave-Free Ratio (iFR) and Fractional Flow Reserve (FFR) with respect to Their Sensitivities to Cardiovascular Factors: A Computational Model-Based Study

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Published in 2020 at "Journal of Interventional Cardiology"

DOI: 10.1155/2020/4094121

Abstract: While coronary revascularization strategies guided by instantaneous wave-free ratio (iFR) are, in general, noninferior to those guided by fractional flow reserve (FFR) with respect to the rate of major adverse cardiac events at one-year follow-up… read more here.

Keywords: fractional flow; instantaneous wave; free ratio; ifr ... See more keywords
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Revisiting the Optimal Fractional Flow Reserve and Instantaneous Wave-Free Ratio Thresholds for Predicting the Physiological Significance of Coronary Artery Disease

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Published in 2018 at "Circulation: Cardiovascular Interventions"

DOI: 10.1161/circinterventions.118.007041

Abstract: Background: There has been a gradual upward creep of revascularization thresholds for both fractional flow reserve (FFR) and instantaneous wave-free ratio (iFR), before the clinical outcome trials for both indices. The increase in revascularization that… read more here.

Keywords: fractional flow; instantaneous wave; flow reserve; free ratio ... See more keywords
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Pathophysiological factors contributing to fractional flow reserve and instantaneous wave-free ratio discordance.

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Published in 2022 at "Reviews in cardiovascular medicine"

DOI: 10.31083/j.rcm2302070

Abstract: The diagnostic accuracy and clinical benefits of instantaneous wave-free ratio (iFR) compared to fractional flow reserve (FFR) have been well-established in the literature. Despite the advantages of non-hyperemic pressure indices, approximately 20% of iFR and… read more here.

Keywords: wave free; free ratio; fractional flow; instantaneous wave ... See more keywords
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Evaluation of Myocardial Ischemia with iFR (Instantaneous Wave-Free Ratio in the Catheterization Laboratory: A Pilot Study

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Published in 2020 at "Arquivos Brasileiros de Cardiologia"

DOI: 10.36660/abc.20180298

Abstract: Background The Instantaneous Wave-Free Ratio (iFR) is an invasive functional evaluation method that does not require vasoactive drugs to induce maximum hyperemia Objective To evaluate the contribution of the iFR to the therapeutic decision-making of… read more here.

Keywords: instantaneous wave; free ratio; evaluation; ischemia ... See more keywords