Results 11 to 20 of about 8,073,677 (124)

Correlation and consistency between resting full-cycle ratio and fractional flow reserve in assessing coronary artery function in a Chinese real-world cohort with non-ST-segment elevation acute coronary syndrome: a retrospective observational study [PDF]

BMJ Open
Objective The study aimed to investigate the correlation and consistency between resting full-cycle ratio (RFR) and fractional flow reserve (FFR) in functional assessment of coronary arteries in a Chinese real-world cohort with non-ST-segment elevation ...
Xu Liu, Ming Chen, Mengyao Li, Nan Guo, Yunfei Wang, Yumeng Lei, Mao Jiang, Shuaiyong Zhang, Yongxing Liu, Xufen Cao, Liqiu Yan   +10 more
doaj   +3 more sources

Comparison of Fractional Flow Reserve and Resting Full-Cycle Ratio in the Functional Assessment of Coronary Artery Stenosis in Patients with Non-ST-Segment Elevation Acute Coronary Syndrome [PDF]

Reviews in Cardiovascular Medicine
Background: This study investigated factors influencing discrepancies between fractional flow reserve (FFR) and resting full-cycle ratio (RFR) in the functional assessment of coronary artery stenosis in patients with non-ST-segment elevation acute ...
Yumeng Lei, Mao Jiang, Xu Liu, Shuaiyong Zhang, Mengyao Li, Yunfei Wang, Ming Chen, Nan Guo, Yongxing Liu, Xufen Cao, Liqiu Yan   +10 more
doaj   +3 more sources

Potential value of saline-induced Pd/Pa ratio in patients with coronary artery stenosis [PDF]

Frontiers in Cardiovascular Medicine, 2023
BackgroundFractional flow reserve (FFR) is the current gold standard for identifying myocardial ischemia in individuals with coronary artery stenosis.
Hiroyuki Kiriyama, Arihiro Kiyosue, Arihiro Kiyosue, Shun Minatsuki, Takuya Kawahara, Susumu Katsushika, Tatsuya Kamon, Kazutoshi Hirose, Hiroki Shinohara, Mizuki Miura, Akihito Saito, Hironobu Kikuchi, Satoshi Kodera, Masaru Hatano, Jiro Ando, Masahiro Myojo, Nobuhiko Itoh, Keisuke Yamamoto, Hiroshi Ikenouchi, Norifumi Takeda, Issei Komuro   +20 more
doaj   +2 more sources

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

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

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

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   +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

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

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

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

Interpretation of Discordance Between Non-Hyperemic Pressure Ratios and Fractional Flow Reserve: Potential Mechanisms and Clinical Implications [PDF]

Reviews in Cardiovascular Medicine
Invasive coronary angiography remains the gold standard for assessing and treating coronary artery disease (CAD). While the decision to intervene on a severely stenotic lesion in acute coronary syndrome (ACS) can be straightforward, assessing the ...
Akshay Roy-Chaudhury, Sameer Prasada, George A. Stouffer   +2 more
doaj   +2 more sources

Impact of Kidney Function on Physiological Assessment of Coronary Circulation [PDF]

Reviews in Cardiovascular Medicine
Background: Diagnosing myocardial ischemia in chronic kidney disease (CKD) patients is crucial since coronary artery disease (CAD) forms the predominant cause of mortality in these patients.
Wojciech Zasada, Barbara Zdzierak, Tomasz Rakowski, Beata Bobrowska, Agata Krawczyk-Ożóg, Sławomir Surowiec, Stanisław Bartuś, Andrzej Surdacki, Artur Dziewierz   +8 more
doaj   +2 more sources

Hemodynamic assessment of intracranial atherosclerotic stenosis: comparison between invasive non-hyperemic pressure ratio and angiography-derived quantitative flow ratio [PDF]

Frontiers in Neurology
ObjectivesTo evaluate the diagnostic accuracy of the quantitative flow ratio (QFR) for hemodynamic exploration of intracranial atherosclerotic stenosis, using the invasive cerebrovascular pressure ratio (CVPR) and resting full-cycle ratio (RFR) as ...
Xiaohui Wang, Yang Bian, Rongju Zhang, Haojing Zhu, Junjie Yang, Ruiling Wang, Xinfeng Liu, Bin Lv, Xiangyu Cao, Wei Dai, Zhibin Sun, Jing Jing, Zhihua Du, Shengyuan Yu, Jun Wang   +14 more
doaj   +2 more sources