Results 21 to 30 of about 7,568,295 (241)

Validation of resting full-cycle ratio and diastolic pressure ratio with [15O]H2O positron emission tomography myocardial perfusion [PDF]

Heart and Vessels
AbstractFractional flow reserve (FFR) and instantaneous wave-free ratio (iFR) are invasive techniques used to evaluate the hemodynamic significance of coronary artery stenosis. These methods have been validated through perfusion imaging and clinical trials.
Jorge Dahdal, Frank Bakker, Johan Svanerud, Ibrahim Danad, Roel S. Driessen, Pieter G. Raijmakers, Hendrik J. Harms, Adriaan A. Lammertsma, Tim P. van de Hoef, Yolande Appelman, Niels van Royen, Paul Knaapen, Guus A. de Waard   +12 more
core   +8 more sources

Diagnostic Performance of Non‐Hyperemic Pressure Ratios Versus Fractional Flow Reserve Stratified by Coronary Artery: A Systematic Review and Meta‐Analysis of Individual Patient Data [PDF]

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
Background In the assessment of coronary physiology, non‐hyperemic pressure ratios (NHPRs) provide an alternative to fractional flow reserve (FFR) without the need for hyperemic agents, reducing procedural time, side effects, and costs.
Tatyana Storozhenko, Damien Collison, Nils P. Johnson, Koshiro Sakai, Takuya Mizukami, Toshiro Shinke, Hitoshi Matsuo, Daniel Munhoz, Dimitri Buytaert, Hirohiko Ando, Brian Ko, Abdul Ihdayhid, Simone Biscaglia, Fernando Rivero, Thomas Engstrøm, Ketina Arslani, Antonio Maria Leone, Lokien X. van Nunen, William F. Fearon, Evald Høj Christiansen, Bjarne L. Nørgaard, Michael Maeng, Liyew Desta, Andy Yong, Hiromasa Otake, Yu Takahashi, Daniele Andreini, Jonathon Leipsic, Bon‐Kwon Koo, Paola Monique Barbato, Jozef Bartunek, Emanuele Barbato, Jeroen Sonck, Bernard De Bruyne, Carlos Collet   +34 more
doaj   +2 more sources

"Trust the eye, but verify". Case report

Кардиоваскулярная терапия и профилактика, 2023
Coronary angiography is today a routine method for assessing the coronary arteries. However, in practice, invasive cardiologists daily face difficulties in assessing the coronary system. The publication considers the management of an elderly patient with
M. T. Taliuridze, F. B. Shukurov, A. S. Shanoyan   +2 more
doaj   +1 more source

Coronary Flow Variations Following Percutaneous Coronary Intervention Affect Diastolic Nonhyperemic Pressure Ratios More Than the Whole Cycle Ratios

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2022
Background Post–percutaneous coronary intervention (PCI) fractional flow reserve ≥0.90 is an accepted marker of procedural success, and a cutoff of ≥0.95 has recently been proposed for post‐PCI instantaneous wave‐free ratio.
Muhammad Aetesam‐ur‐Rahman, Tian X. Zhao, Kitty Paques, Joana Oliveira, Bharat Khialani, Stephen Kyranis, Denise M. Braganza, Sarah C. Clarke, Martin R. Bennett, Nick E. J. West, Stephen P. Hoole   +10 more
doaj   +1 more source

The Impact of Age on the Physiological Assessment of Borderline Coronary Stenoses

Medicina, 2023
Background and Objectives: Coronary angiography is the gold standard for diagnosing coronary artery disease (CAD). In the case of borderline changes, patients require further diagnosis through ischemia assessment via one of the recommended methods of ...
Wojciech Zasada, Barbara Zdzierak, Tomasz Rakowski, Beata Bobrowska, Agata Krawczyk-Ożóg, Sławomir Surowiec, Stanisław Bartuś, Andrzej Surdacki, Artur Dziewierz   +8 more
doaj   +1 more source

Comparison of Fractional Flow Reserve with Resting Non-Hyperemic Indices in Patients with Coronary Artery Disease

Journal of Cardiovascular Development and Disease, 2023
Guidelines recommend using hyperemic (FFR) and non-hyperemic (iFR/RFR) methods of evaluating coronary artery stenoses in patients with coronary artery disease.
Barbara Zdzierak, Wojciech Zasada, Agata Krawczyk-Ożóg, Tomasz Rakowski, Stanisław Bartuś, Andrzej Surdacki, Artur Dziewierz   +6 more
doaj   +1 more source

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

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   +1 more source

Will Resting Full-Cycle Ratio Substitute Fractional Flow Reserve [PDF]

Indian Journal of Cardiovascular Disease in Women WINCARS, 2020
AbstractPhysiological assessment of coronary artery stenosis added an element of certainty of benefit to the patient undergoing revascularization. Fractional flow reserve (FFR) was the gold standard, with good reproducibility, correlation with noninvasive inducible ischemia testing and, most importantly, clinical benefit.
openaire   +1 more source

Comparison of Resting Full Cycle Ratio with Fractional Flow Reserve in Indian Population [PDF]

Indian Journal of Cardiovascular Disease in Women WINCARS, 2020
Abstract Background From the previous studies fractional flow reserve (FFR) was considered best for hemodynamic assessment of bordersline coronary lesions. In literature, previous studies compared instant wave-free ratio (IFR) with resting full cycle ratio (RFR) which concluded that both were equally effective diagnostically. Studies comparing RFR with
Shravan Kumar Ch, Sudhakar Kanumuri, Garre Indrani, M. Naveen Kumar   +3 more
openaire   +1 more source

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