Results 1 to 10 of about 175,351 (257)

Long‐Term Clinical Outcomes of Nonhyperemic Pressure Ratios: Resting Full‐Cycle Ratio, Diastolic Pressure Ratio, and Instantaneous Wave‐Free Ratio [PDF]

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2020
Background Nonhyperemic pressure ratios (NHPRs) such as instantaneous wave‐free ratio, resting full‐cycle ratio, or diastolic pressure ratio have emerged as invasive physiologic indices precluding the need for hyperemic agents.
Joo Myung Lee, Seung Hun Lee, Doyeon Hwang, Tae-Min Rhee, Ki Hong Choi, Jinseob Kim, Jinhyoung Park, Hyung Yoon Kim, Hae Won Jung, Yun-Kyeong Cho, Hyuck-Jun Yoon, Young Bin Song, Joo-Yong Hahn, Chang-Wook Nam, Eun-Seok Shin, Joon-Hyung Doh, Seung-Ho Hur, Bon-Kwon Koo   +17 more
doaj   +7 more sources

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

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   +7 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   +7 more sources

Utility of Saline-Induced Resting Full-Cycle Ratio Compared with Resting Full-Cycle Ratio and Fractional Flow Reserve [PDF]

Journal of Interventional Cardiology, 2020
Background. The saline-induced distal coronary pressure/aortic pressure ratio predicted fractional flow reserve (FFR). The resting full-cycle ratio (RFR) represents the maximal relative pressure difference in a cardiac cycle. Therefore, the present study
Takao Sato, Sonoka Goto, Yusuke Ohta, Yuji Taya, Sho Yuasa, Minoru Takahashi, Masaaki Okabe, Yoshifusa Aizawa   +7 more
doaj   +6 more sources

The impact of coronary microvascular dysfunction on the discordance between fractional flow reserve and resting full-cycle ratio in patients with chronic coronary syndromes [PDF]

Frontiers in Cardiovascular Medicine, 2022
BackgroundResting full-cycle ratio (RFR) is an alternative to fractional flow reserve (FFR) for the evaluation of borderline coronary artery lesions.
Jacek Legutko, Jacek Legutko, Lukasz Niewiara, Lukasz Niewiara, Bartlomiej Guzik, Bartlomiej Guzik, Piotr Szolc, Piotr Szolc, Jakub Podolec, Jakub Podolec, Marcin Nosal, Marta Diachyshyn, Krzysztof Zmudka, Krzysztof Zmudka, Paweł Kleczynski, Paweł Kleczynski   +15 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   +5 more sources

Prognostic impact of resting full-cycle ratio and diastolic non-hyperemic pressure ratios in patients with deferred revascularization. [PDF]

Clin Res Cardiol, 2023
Abstract Background Non-hyperemic pressure ratios (NHPRs) like resting full-cycle ratio (RFR), diastolic pressure ratio during entire diastole (dPR[entire]) and diastolic pressure ratio during wave-free period (dPR[WFP]) are increasingly used to guide revascularization.
Halbach M, Ameskamp C, Mauri V, Ernst A, Lake P, Nienaber S, Baldus S, Adam M, Wienemann H.   +8 more
europepmc   +5 more sources

Invasive physiologic assessment of coronary artery stenosis by resting full-cycle ratio and fractional flow reserve: a prospective observational study [PDF]

Scientific Reports, 2023
Resting full-cycle ratio (RFR), an alternative to fractional flow reserve (FFR) for evaluating intermediate coronary artery stenosis, helps reduce patients’ time, cost, and discomfort. However, the validation data for RFR and FFR are lacking. We aimed to
Oh-Hyun Lee, Ji Woong Roh, Yongcheol Kim, Seok-Jae Heo, Eui Im, Deok-Kyu Cho   +5 more
doaj   +2 more sources

Feasibility and Comparison of Resting Full-Cycle Ratio and Computed Tomography Fractional Flow Reserve in Patients with Severe Aortic Valve Stenosis [PDF]

Journal of Cardiovascular Development and Disease, 2022
Background: Computed tomography derived Fractional Flow Reserve (CT-FFR) has been shown to decrease the referral rate for invasive coronary angiography (ICA).
Hendrik Wienemann, Marcel C. Langenbach, Victor Mauri, Maryam Banazadeh, Konstantin Klein, Christopher Hohmann, Samuel Lee, Isabel Breidert, Alexander Hof, Kaveh Eghbalzadeh, Elmar Kuhn, Marcel Halbach, David Maintz, Stephan Baldus, Alexander Bunck, Matti Adam   +15 more
doaj   +2 more sources

Resting Full-Cycle Ratio versus Fractional Flow Reserve: A SWEDEHEART-Registry-Based Comparison of Two Physiological Indexes for Assessing Coronary Stenosis Severity [PDF]

Journal of Interventional Cardiology, 2023
The adenosine-requiring physiological index fractional flow reserve (FFR) is the gold-standard method for determining the significance of intermediate lesions, while the resting full-cycle ratio (RFR) is a novel nonhyperaemic index without the need for ...
Stephen Malmberg, Jörg Lauermann, Patric Karlström, Dario Gulin, Neshro Barmano   +4 more
doaj   +2 more sources