Reliability of Instantaneous Wave-Free Ratio (iFR) for the Evaluation of Left Main Coronary Artery Lesions. [PDF]
J Clin Med, 2019 The assessment of the left main coronary artery (LMCA) by coronary angiography has several limitations. The fractional flow reserve (FFR) is useful for the functional evaluation of LMCA stenoses. The instantaneous wave-free ratio (iFR), a resting index, was developed to simplify functional coronary assessment. However, its performance for LMCA stenoses
De Rosa S +9 more
europepmc +10 more sources
Computational instantaneous wave-free ratio (IFR) for patient-specific coronary artery stenoses using 1D network models. [PDF]
Int J Numer Method Biomed Eng, 2019 AbstractIn this work, we estimate the diagnostic threshold of the instantaneous wave‐free ratio (iFR) through the use of a one‐dimensional haemodynamic framework. To this end, we first compared the computed fractional flow reserve (cFFR) predicted from a 1D computational framework with invasive clinical measurements.
Carson JM +3 more
europepmc +10 more sources
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 [PDF]
Journal of Interventional Cardiology, 2020 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 in ...
Xinyang Ge +7 more
doaj +6 more sources
Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2023 Background Although physiology‐based assessment of coronary artery stenosis using instantaneous wave‐free ratio (iFR) and fractional flow reserve (FFR) are established methods of guiding coronary revascularization, its clinical outcome in long‐term ...
Karolina Berntorp +7 more
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Myocardial perfusion imaging by single-photon emission tomography (MPI SPECT) versus Instantaneous wave-free ratio (IFR) for assessment of functional significance of intermediate coronary artery lesions [PDF]
The Egyptian Heart Journal, 2019 Background The aim of our work was to compare the myocardial perfusion imaging by single-photon emission tomography (MPI-SPECT) as a non-invasive, relatively non-expensive test versus the instantaneous wave-free ratio (IFR) for the evaluation of ...
Osama Ahmed Amin +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
doaj +8 more sources
Instantaneous wave-free ratio (iFR®) to determine hemodynamically significant coronary stenosis: A comprehensive review. [PDF]
World J Cardiol, 2018 Coronary angiography is considered to be the gold standard in the morphological evaluation of coronary artery stenosis. The morphological assessment of the severity of a coronary lesion is very subjective. Thus, the invasive fractional flow reserve (FFR) measurement represents the current standard for estimation of the hemodynamic significance of ...
Baumann S +6 more
europepmc +3 more sources
European Heart Journal, 2023 Abstract Background and Aims Guidelines recommend revascularization of intermediate epicardial artery stenosis to be guided by evidence of ischaemia. Fractional flow reserve (FFR) and instantaneous wave-free ratio (iFR) are equally recommended.
Jelmer Westra, Lisette Okkels Jensen
exaly +5 more sources
Clinical Outcomes Following Discordance Between Fractional Flow Reserve and Instantaneous Wave-Free Ratio in Deferred Coronary Lesions: A Systematic Review and Meta-Analysis [PDF]
Reviews in Cardiovascular MedicineBackground: Current guidelines recommend the use of either fractional flow reserve (FFR) or instantaneous wave-free ratio (iFR) for assessing intermediate coronary stenoses.
Spyridon Graidis +9 more
doaj +2 more sources
Cardiovascular Revascularization Medicine, 2015 Coronary intervention is increasingly performed in complex disease with tandem and diffuse disease. Pressure wires enable detailed assessment of the physiological significance of a stenosis but in the presence of tandem disease, predicting the impact of a stenting a given stenosis can be difficult and is impeded by flow interaction between stenoses ...
Sukhjinder Nijjer
exaly +4 more sources