Results 21 to 30 of about 8,073,677 (124)

Agreement Between Invasive Wire-Based and Angiography-Based Vessel Fractional Flow Reserve Assessment on Intermediate Coronary Stenoses

Frontiers in Cardiovascular Medicine, 2021
Background: Angiography-based functional assessment of coronary stenoses emerges as a novel approach to assess coronary physiology. We sought to investigate the agreement between invasive coronary wire-based fractional flow reserve (FFR), resting full ...
Chun-Chin Chang, Chun-Chin Chang, Chun-Chin Chang, Yin-Hao Lee, Ming-Ju Chuang, Chien-Hung Hsueh, Ya-Wen Lu, Yi-Lin Tsai, Ruey-Hsing Chou, Ruey-Hsing Chou, Cheng-Hsueh Wu, Cheng-Hsueh Wu, Tse-Min Lu, Po-Hsun Huang, Po-Hsun Huang, Po-Hsun Huang, Shing-Jong Lin, Shing-Jong Lin, Shing-Jong Lin, Robert-Jan van Geuns, Robert-Jan van Geuns   +20 more
doaj   +1 more source

Retrospective comparison of Resting Full-cycle Ratio (RFR) and Fractional Flow Reserve (FFR) in a coronary artery disease cohort

European Heart Journal, 2020
Abstract Background The fractional flow reserve (FFR) is the gold standard for the assessment of the physiological severity of coronary artery disease. Measurement of FFR requires administration of a vasodilator (commonly adenosine) to achieve maximum hyperemia. The development of resting indices that
H Wienemann, V Mauri, S Baldus, M Halbach   +3 more
openaire   +1 more source

Influence of sex on the functional assessment of myocardial ischemia [PDF]

, 2023
Background: Fractional flow reserve (FFR) and non-hyperemic resting pressure ratios, such as instantaneous wave-free ratio (iFR) and resting full-cycle ratio (RFR), are recommended for evaluating the significance of angiographically intermediate ...
Dziewierz, Artur, Surdacki, Andrzej, Zasada, Wojciech, Rakowski, Tomasz, Krawczyk-Ożóg, Agata, Bartuś, Stanisław, Zdzierak, Barbara   +6 more
core   +3 more sources

Anatomical Assessment vs. Pullback REsting full-cycle rAtio (RFR) Measurement for Evaluation of Focal and Diffuse CoronarY Disease [PDF]

, 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. The fractional flow reserve (FFR), the coronary flow reserve (CFR), and the resting full-cycle ratio (RFR)
Kőszegi Zsolt, Berta Balázs, Tóth Gábor G., Tar Balázs, Üveges Áron, Ágoston András, Szűcs Attila, Szabó Gábor Tamás, Barta Judit, Szűk Tibor, Czuriga Dániel, Komócsi András, Ruzsa Zoltán   +12 more
openaire   +1 more source

Recommendations for the performance of coronary physiology studies.

, 2023
RFR, resting full-cycle ratio; FFR, fractional flow reserve; CFR, coronary flow reserve; IMR, index of microvascular resistance; Tmn, mean transit time. (DOCX)
Marcos Garcia-Guimaraes (8458002), Carlos Cortés Villar (15453573), Ferran Barbé (510961), Thalía Belmonte (6657887), Vicente Peral Disdier (13639951), Juan Casanova-Sandoval (13639927), Fernando Worner (3152415), Raúl Millán Segovia (15453576), Diego Fernández-Rodríguez (8077805), Ignacio Barriuso (13639930), Lucía Matute-Blanco (15453570), Kristian Rivera (8077808), Iván D. Benítez (11480363), David de Gonzalo-Calvo (11312838)   +13 more
core   +1 more source

Ajustando a RFR por Preditores de Discordância, “A RFR Ajustada”: Uma Metodologia Alternativa para Melhorar a Capacidade Diagnóstica dos Índices Coronarianos

, 2022
Angina de pecho; Reserva de flujo fraccional; SensibilidadAngina de pit; Reserva de flux fraccionari; SensibilitatAngina; Fractional flow reserve; SensitivityBackground Cutoff thresholds for the “resting full-cycle ratio” (RFR) oscillate in different ...
García del Blanco, Bruno, Fernández-Rodríguez, Diego, Casanova-Sandoval, Juan, Otaegui Irurueta, Imanol, Rivera, Kristian, Barriuso Barrado, Ignacio   +5 more
core   +2 more sources

Diagnostic performance of quantitative flow ratio versus fractional flow reserve and resting full-cycle ratio in intermediate coronary lesions.

, 2022
20.500.12530/87907Quantitative flow ratio (QFR) is a novel angiography-derived index aimed to assess the functional relevance of coronary stenoses without pressure wires and adenosine. Good diagnostic yield with the hyperemic fractional flow reserve (FFR)
Mauri, Victor, Adam, Matti, Escaned, Javier, Ameskamp, Christopher, Halbach, Marcel, Hohmann, Christopher, Mejía-Rentería, Hernán, Baldus, Stephan, Wienemann, Hendrik   +8 more
core   +1 more source

Debate: Angiography-derived FFR. The angiographic perspective

REC: Interventional Cardiology (English Ed.), 2020
QUESTION: Compared to the pressure guidewire what possible advantages does coronary angiography-derived fractional flow reserve (FFRangio) have and what is the current clinical evidence?
Ignacio J. Amat Santos
doaj   +1 more source

Comparison of Nitroglycerin-Induced Pressure Ratio Drop and Resting Full-Cycle Ratio in a Pressure Wire Study. [PDF]

J Clin Med
Background/Objectives: The acute drop in distal coronary pressure (Pd)-to-aortic pressure (Pa) ratio after intracoronary nitroglycerin (NTG-Pd/Pa) administration is an acceptable estimate of fractional flow reserve (FFR).
Jong CB, Lu TS, Liao MT, Xu JL, Chen CK, Kuo JC, Wu CC.   +6 more
europepmc   +2 more sources

Impact of coronary revascularization on clinical outcomes in vessels with discordant results of fractional flow reserve and resting full-cycle ratio. [PDF]

Heart Vessels
Fractional flow reserve (FFR) is an invasive standard, and resting full-cycle ratio (RFR), a non-hyperemic pressure ratio, is an alternative to FFR for evaluating the functional severity of coronary stenosis.
Yamazaki T, Saito Y, Nakamura S, Tanabe Y, Kitahara H, Kobayashi Y.   +5 more
europepmc   +2 more sources