Results 161 to 170 of about 7,220,590 (185)

Classification performance of instantaneous wave-free ratio (iFR) and fractional flow reserve in a clinical population of intermediate coronary stenoses: results of the ADVISE registry

EuroIntervention, 2013
To evaluate the classification agreement between instantaneous wave-free ratio (iFR) and fractional flow reserve (FFR) in patients with angiographic intermediate coronary stenoses.Three hundred and twelve patients (339 stenoses) with angiographically intermediate stenoses were included in this international clinical registry.
Petraco, Ricardo, Escaned, Javier, Sen, Sayan, Nijjer, Sukhjinder, Asrress, Kaleab N., Echavarria-Pinto, Mauro, Lockie, Tim, Khawaja, Muhammed Z., Cuevas, Cecilia, Foin, Nicolas, Broyd, Christopher, Foale, Rodney A., Hadjiloizou, Nearchos, Malik, Iqbal S., Mikhail, Ghada W., Sethi, Amarjit, Kaprielian, Raffi, Baker, Christopher S., Lefroy, David, Bellamy, Michael, Al-Bustami, Mahmud, Khan, Masood A., Hughes, Alun D., Francis, Darrel P., Mayet, Jamil, Di Mario, Carlo, Redwood, Simon, Davies, Justin E.   +27 more
openaire   +5 more sources

Predictive factors of discordance between the instantaneous wave‐free ratio and fractional flow reserve

Catheterization and Cardiovascular Interventions, 2019
To identify clinical, angiographic and hemodynamic predictors of discordance between instantaneous wave-free ratio (iFR) and fractional flow reserve (FFR)
François Derimay, Nils Witt, Emanuele Barbato   +2 more
exaly   +3 more sources

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Coronary revascularization guided by instantaneous wave-free ratio compared with fractional flow reserve: pooled 5-year mortality in the DEFINE-FLAIR and iFR-SWEDEHEART trials

European Heart Journal, 2023
John McClure
exaly   +3 more sources

Comparison of quantitative flow ratio (QFR) and instantaneous wave-free ratio (iFR) or resting full-cycle ratio (RFR) during daily routine in the catheterization laboratory

European Heart Journal, 2022
Abstract Background The prognosis of patients with coronary artery disease (CAD) depends strongly on the hemodynamic relevance of the stenosis. The gold standard is the invasive evaluation of the stenosis using Fractional Flow Reserve (FFR), instantaneous wave-free ratio (iFR) or Resting Full-Cycle ...
M Antoniadis, J Stader, M Ussat, R Wachter, D Jurisch, D Lavall, M Metze, M Neef, P Baum, C Spies, U Laufs, K Lenk   +11 more
openaire   +1 more source

Der invasive Ischämienachweis – Fraktionelle Flussreserve (FFR) und Instantaneous Wave Free Ratio (iFR)

Der Nuklearmediziner, 2017
Die Bestimmung der fraktionellen Flussreserve (FFR) unter Bedingungen der maximalen Hyperamie – induziert mit Adenosin – im gemessenen koronaren Versorgungsgebiet ist eine einfache und valide Methode zur hamodynamischen Quantifizierung von Koronarstenosen und damit derzeit der Goldstandard zur Therapie-Entscheidung fur den invasiv tatigen Kardiologen ...
Stefan Baumanns, Jürgen vom Dahl
openaire   +1 more source

Functional coronary assessment: instantaneous wave-free ratio and other indices

, 2018
The instantaneous wave-free ratio (iFR) is a hyperaemia-independent coronary pressure index for the physiological assessment of coronary stenoses. The underlying concept of iFR is that it quantifies the trans-stenotic pressure ratio during the wave-free ...
Justin Davies
exaly   +2 more sources

Instantaneous Wave-Free Ratio (iFR) Correlates With Fractional Flow Reserve (FFR) Assessment of Coronary Artery Stenoses and Myocardial Bridges in Children

Journal of Invasive Cardiology, 2020
Instantaneous wave-free ratio (iFR) has been proven to correlate with coronary flow reserve better than fractional flow reserve (FFR) and is non-inferior to FFR in guiding coronary revascularization in ischemic heart disease. There has been no study validating the utility of iFR in children.We performed a retrospective review of clinically indicated ...
Tam Doan, James Wilkinson, Hitesh Agrawal, Silvana Molossi, Mahboob Alam, Carlos Mery, Athar Qureshi   +6 more
openaire   +2 more sources

[Instantaneous wave-free ratio (iFR®) in patients with coronary artery disease].

Herz, 2019
Coronary angiography is considered as the gold standard in the morphological representation of coronary artery stenosis. Coronary angiography is often performed without preprocedural non-invasive proof of ischemia and the assessment of the severity of a coronary lesion by morphology is very subjective.
S, Baumann, A C, Schaefer, A, Hohneck, K, Mueller, T, Becher, M, Behnes, M, Renker, M, Borggrefe, I, Akin, D, Lossnitzer   +9 more
openaire   +1 more source

Instantaneous Wave-Free Ratio versus Fractional Flow Reserve guided intervention (iFR-SWEDEHEART): Rationale and design of a multicenter, prospective, registry-based randomized clinical trial

American Heart Journal, 2015
Instantaneous wave-free ratio (iFR) is a new hemodynamic resting index for assessment of coronary artery stenosis severity. iFR uses high frequency sampling to calculate a gradient across a coronary lesion during a period of diastole. The index has been tested against fractional flow reserve (FFR) and found to have an overall classification agreement ...
Matthias Götberg, Evald H. Christiansen, Ingibjörg Gudmundsdottir, Lennart Sandhall, Elmir Omerovic, Stefan K. James, David Erlinge, Ole Fröbert   +7 more
openaire   +2 more sources

Comparison of vessel-Fractional Flow Reserve (vFFR) and Quantitative Flow Ratio (QFR) using instantaneous wave-Free Ratio (iFR) or Resting Full-cycle Ratio (RFR) as reference

European Heart Journal
Abstract Background Angiography-based functional assessment remains the state of the art to assess the hemodynamic relevance of intermediate coronary stenoses. In addition to fractional flow reserve (FFR), adenosin free indices like instantaneous wave-free ratio (iFR) or resting full-cycle ratio (RFR)
M Antoniadis, L Weissenseel, J Stader, M Ussat, R Wachter, U Laufs, K Lenk   +6 more
openaire   +1 more source