Diastolic pressure ratio: new approach and validation vs. the instantaneous wave-free ratio [PDF]
European Heart Journal, 2019 Aims: The instantaneous wave-free ratio (iFR) and whole-cycle Pd/Pa investigate coronary physiology during non-hyperaemic conditions. To test for unique physiologic properties of the wave-free period when making resting coronary pressure measurements, we
Nils Johnson, Barry Hennigan
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Rate Pressure Products Affect the Relationship between the Fractional Flow Reserve and Instantaneous Wave-Free Ratio [PDF]
Journal of Interventional Cardiology, 2020 The rate pressure product (RPP) is an index of myocardial metabolism that correlates closely with myocardial hemodynamics. The relationship between the RPP and the fractional flow reserve (FFR) and instantaneous wave-free ratio (iFR) is not known.
Suguru Ebihara +4 more
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Diagnostic performance of deep learning and computational fluid dynamics-based instantaneous wave-free ratio derived from computed tomography angiography [PDF]
BMC Cardiovascular Disorders, 2022 Background and objectives Both fractional flow reserve (FFR) and instantaneous wave-free ratio (iFR) are widely used to evaluate ischemia-causing coronary lesions.
Jingyuan Zhang +16 more
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Understanding Fractional Flow Reserve/Instantaneous Wave‐Free Ratio Discordance Can Provide Coronary Clarity [PDF]
Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2022 David M. Tehrani, Arnold H. Seto
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Safety of coronary revascularization deferral based on fractional flow reserve and instantaneous wave-free ratio in patients with chronic kidney disease [PDF]
Cardiology Journal, 2022 BACKGROUND: The safety of revascularization deferral according to pressure wire examination in patients with chronic kidney disease (CKD) has not been fully established.
Alejandro Travieso +13 more
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Revascularization and Mortality at 5 Years After Treatment Guided By Instantaneous Wave‐Free Ratio and Fractional Flow Reserve: A Systematic Review and Meta‐Analysis of Randomized Controlled Trials [PDF]
Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2023 Jayakumar Sreenivasan +2 more
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Evaluation of Myocardial Ischemia with iFR (Instantaneous Wave-Free Ratio in the Catheterization Laboratory: A Pilot Study [PDF]
Arquivos Brasileiros de Cardiologia, 2020 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 ...
Heitor Cruz Alves Vieira +5 more
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Instantaneous wave-free ratio guided multivessel revascularisation during percutaneous coronary intervention for acute myocardial infarction: study protocol of the randomised controlled iMODERN trial [PDF]
BMJ Open, 2021 Introduction Recent randomised clinical trials showed benefit of non-culprit lesion revascularisation in ST-elevation myocardial infarction (STEMI) patients. However, it remains unclear whether revascularisation should be performed at the index procedure
Jan J Piek +17 more
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Fractional flow reserve and instantaneous wave-free ratio in coronary artery bypass grafting: a meta-analysis and practice review [PDF]
Frontiers in Cardiovascular MedicineObjectiveFractional flow reserve (FFR) and instantaneous wave-free ratio (iFR) are invasive methods to assess the functional significance of intermediate severity coronary lesions.
R. G. Abbasciano +13 more
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Fractional flow reserve, quantitative flow ratio, and instantaneous wave-free ratio: a comparison of the procedure-related dose of ionising radiation [PDF]
Advances in Interventional Cardiology, 2021 Greta Ziubryte, Gediminas Jarusevicius
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