Results 1 to 10 of about 8,073,677 (124)

Anatomical Assessment vs. Pullback REsting full-cycle rAtio (RFR) Measurement for Evaluation of Focal and Diffuse CoronarY Disease: Rationale and Design of the “READY Register” [PDF]

Frontiers in Cardiovascular Medicine, 2021
Background: The morphology and functional severity of coronary stenosis show poor correlation. However, in clinical practice, the visual assessment of the invasive coronary angiography is still the most common means for evaluating coronary disease.
Zsolt Kőszegi, Zsolt Kőszegi, Zsolt Kőszegi, Balázs Berta, Gábor G. Tóth, Balázs Tar, Balázs Tar, Áron Üveges, Áron Üveges, András Ágoston, András Ágoston, Attila Szücs, Gábor Tamás Szabó, Gábor Tamás Szabó, Judit Barta, Judit Barta, Tibor Szük, Tibor Szük, Dániel Czuriga, Dániel Czuriga, András Komócsi, Zoltán Ruzsa   +21 more
doaj   +9 more sources

Usefulness of the Hybrid RFR-FFR Approach: Results of a Prospective and Multicenter Analysis of Diagnostic Agreement between RFR and FFR—The RECOPA (REsting Full-Cycle Ratio Comparation versus Fractional Flow Reserve (A Prospective Validation)) Study [PDF]

Journal of Interventional Cardiology, 2021
Background. The resting full‐cycle ratio (RFR) is a novel resting index which in contrast to the gold standard (fractional flow reserve (FFR)) does not require maximum hyperemia induction.
Juan Casanova-Sandoval, Diego Fernández-Rodríguez, Imanol Otaegui, Teresa Gil Jiménez, Marcos Rodríguez-Esteban, Kristian Rivera, Francisco Torres-Saura, Víctor Jiménez Díaz, Raymundo Ocaranza-Sánchez, Vicente Peral Disdier, Guillermo Sánchez-Elvira, Fernando Worner   +11 more
doaj   +12 more sources

Clinical assessment of resting full-cycle ratio and fractional flow reserve for coronary artery disease in a real-world cohort [PDF]

Frontiers in Cardiovascular Medicine, 2022
BackgroundThere are few reports published on the comparison of the resting full-cycle ratio (RFR) and fractional flow reserve (FFR) on the assessment of the severity of coronary stenosis.
Ming-Ju Chuang, Ming-Ju Chuang, Chun-Chin Chang, Chun-Chin Chang, Chun-Chin Chang, Chun-Chin Chang, Yin-Hao Lee, Yin-Hao Lee, Ya-Wen Lu, Ya-Wen Lu, Yi-Lin Tsai, Yi-Lin Tsai, Ruey-Hsing Chou, Ruey-Hsing Chou, Ruey-Hsing Chou, Ruey-Hsing Chou, Cheng-Hsueh Wu, Cheng-Hsueh Wu, Tse-Min Lu, Tse-Min Lu, Po-Hsun Huang, Po-Hsun Huang, Po-Hsun Huang, Po-Hsun Huang   +23 more
doaj   +4 more sources

Increased dose of adenosine and the relationship between the resting full-cycle ratio and fractional flow reserve [PDF]

International Journal of Cardiology: Heart & Vasculature
Background: Intermediate coronary artery stenosis can be evaluated with fractional flow reserve (FFR) and resting full-cycle ratio (RFR) to determine if the stenosis is functionally significant.
Christian A. Christensen, Jens Trøan, Kirstine N. Hansen, Manijeh Noori, Anders Junker, Karsten Veien, Martin K. Christensen, Julia Ellert-Gregersen, Kristian Wachtell, Henrik S. Hansen, Jens F. Lassen, Diyako Qanie, Mikkel Hougaard, Lisette O. Jensen   +13 more
doaj   +4 more sources

Physiology guided coronary revascularization using a hybrid RFR-FFR strategy for Non ST elevation acute coronary syndrome [PDF]

Scientific Reports
To develop a hybrid resting full-cycle ratio (RFR)- fractional flow reserve (FFR) decision-making approach for physiology-guided coronary revascularization in patients with non-ST elevation acute coronary syndrome (NSTE-ACS).
Huanting Liu, Youcheng Wang, Sini Fang, Xu Liu, Mao Jiang, Ming Chen, Nan Guo, Yunfei Wang, Jing Yu, Yumeng Lei, Ying Mao, Liqiu Yan   +11 more
doaj   +3 more sources

Fractional Flow Reserve Relates Stronger to Coronary Plaque Burden Than Nonhyperemic Pressure Indexes [PDF]

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
Background The relationship between fractional flow reserve (FFR), resting full‐cycle ratio (RFR), instantaneous wave‐free ratio (iFR), resting distal pressure/aortic pressure (Pd/Pa), and plaque burden as well as phenotype requires further elucidation ...
Ruurt A. Jukema, Jorge Dahdal, Nick S. Nurmohamed, Pieter G. Raijmakers, Jos Twisk, Pepijn A. van Diemen, R. Nils Planken, G. Aernout Somsen, Niels J. Verouden, Guus A. de Waard, Paul Knaapen, Ibrahim Danad, Roel Driessen   +12 more
doaj   +4 more sources

Comparison of Resting Full-Cycle Ratio and Fractional Flow Reserve in a German Real-World Cohort

Frontiers in Cardiovascular Medicine, 2021
Objective: The aim of this study was to evaluate non-hyperemic resting pressure ratios (NHPRs), especially the novel “resting full-cycle ratio” (RFR; lowest pressure distal to the stenosis/aortic pressure during the entire cardiac cycle), compared to the
Hendrik Wienemann, Annika Meyer, Victor Mauri, Till Baar, Matti Adam, Stephan Baldus, Marcel Halbach   +6 more
doaj   +4 more sources

Microvascular resistance reserve: insights into discordant resting and hyperemic epicardial coronary physiology [PDF]

Frontiers in Cardiovascular Medicine
IntroductionDiscordance between resting and hyperemic epicardial physiology is commonbut mechanistically unclear. Microvascular resistance reserve (MRR), a novelindex of vasodilatory capacity, may provide insight.
Aswin Babu, Aswin Babu, Isobelle Goldrick, Billy Broadbent, Rania Faeq, Charley Budgeon, Roopa Krishnamoorthy, Primero Ng, Cara Barnes, Dipen Sankhesara, Avadhesh Saraswat, Imran Shiekh, James Marangou, Richard Alcock, Rachel Orme, Carl Schultz, Carl Schultz, Graham S. Hillis, Graham S. Hillis, Jon Spiro, Jon Spiro   +20 more
doaj   +2 more sources

The guiding value of hybrid resting full-cycle ratio and fractional flow reserve strategy for percutaneous coronary intervention in a Chinese real-world cohort with non-ST elevation acute coronary syndrome

Frontiers in Cardiovascular Medicine, 2022
ObjectiveThe study aimed to assess the correlation and agreement between resting full-cycle ratio (RFR) and fractional flow reserve (FFR), and evaluate the guiding value of a hybrid RFR-FFR strategy for percutaneous coronary intervention (PCI) in a ...
Yumeng Lei, Shuaiyong Zhang, Mengyao Li, Jiawang Wang, Yunfei Wang, Lei Zhao, Wei Yan, Ming Chen, Yanjie Su, Jing Yu, Na Yu, Tongjun Dong, Xufen Cao, Liqiu Yan   +13 more
doaj   +3 more sources

Use of physioLogy to evaluaTe procedural Result After percutaneous coronary intervention of Chronic Total Occlusion (ULTRA-CTO): protocol for a prospective, single-arm, multicentre, exploratory study [PDF]

BMJ Open
Introduction Post-percutaneous coronary intervention (PCI) fractional flow reserve (FFR) is associated with future major adverse cardiac events and may reflect residual ischaemia and suboptimal stent result (SSR).
Niels van Royen, Robert-Jan van Geuns, Thomas A Meijers, Marleen van Wely, Vincent Roolvink, Maarten van Leeuwen, Dirk J van der Heijden, Alexander M Griffioen, Rick H J A Volleberg   +8 more
doaj   +2 more sources