Results 231 to 240 of about 7,568,295 (241)

A novel coronary angiographic index for predicting correlation between fractional flow reserve and resting full-cycle ratio

Coronary Artery Disease, 2023
Objectives The discordant results between fractional flow reserve (FFR) and resting full-cycle ratio (RFR) and the influence of angiographic characteristics on their correlation have not been sufficiently investigated. We aimed to identify angiographic characteristics that can predict FFR and RFR correlations using a novel ...
Hirofumi, Ohtani, Daisuke, Ueshima, Takuya, Kawakami, Yoshihiro, Hanyu, Kenji, Yoshioka, Akira, Mizukami, Akihiko, Matsumura, Tetsuo, Sasano   +7 more
openaire   +2 more sources

Comparison of vessel fractional flow reserve with invasive resting full-cycle ratio in patients with intermediate coronary lesions

International Journal of Cardiology, 2023
Vessel fractional flow reserve (vFFR) is a novel angiography-derived index for the assessment of myocardial ischemia without the need for pressure wires and hyperemic agents. vFFR has demonstrated very good diagnostic performance compared with the hyperemic index fractional flow reserve (FFR).
Philipp, Lake, Marcel, Halbach, Michelle, Kardasch, Victor, Mauri, Stephan, Baldus, Matti, Adam, Hendrik, Wienemann   +6 more
openaire   +2 more sources

Midterm Clinical Outcomes for Deferred Coronary Revascularization on the Basis of Resting Full-Cycle Ratio and Fractional Flow Reserve Measurements

The American Journal of Cardiology, 2023
The midterm prognosis of patients with deferred revascularization based on resting full-cycle ratio (RFR) or fractional flow reserve (FFR) is not well established. We investigated the midterm clinical outcomes of 137 consecutive patients with deferred revascularization of 177 coronary arteries based on RFR and FFR.
Takahiro Muroya, Hiroaki Kawano, Shiro Hata, Hiroki Shinboku, Koichiro Sonoda, Kentaro Furukawa, Kazuki Matsumura, Koji Maemura   +7 more
openaire   +2 more sources

Real world validation of the nonhyperemic index of coronary artery stenosis severity—Resting full‐cycle ratio—RE‐VALIDATE

Catheterization and Cardiovascular Interventions, 2019
AbstractObjectiveThe primary objective was to demonstrate diagnostic equivalence between RFR and iFR in clinical practice.BackgroundThe instantaneous wave‐free ratio (iFR), a nonhyperemic pressure ratio (NHPR), has been shown to be noninferior to fractional flow reserve (FFR) in determining coronary artery stenosis severity in intermediate lesions ...
Gautam Kumar, Rupak Desai, Ankita Gore, Hussein Rahim, Akiko Maehara, Mitsuaki Matsumura, Ajay Kirtane, Allen Jeremias, Ziad Ali   +8 more
openaire   +2 more sources

Prospective validation and comparison of new indexes for the assessment of coronary stenosis: resting full-cycle and quantitative flow ratio

Revista Española de Cardiología (English Edition), 2021
Carlos, Cortés, Fernando, Rivero, Enrique, Gutiérrez-Ibañes, Álvaro, Aparisi, José A, San Román, Ignacio J, Amat-Santos   +5 more
openaire   +2 more sources

Predictors of discordance between fractional flow reserve and resting full-cycle ratio in patients with coronary artery disease: Evidence from clinical practice

Journal of Cardiology, 2021
Hiroshi Iwata, Yuichi Chikata, Tomotaka Dohi   +2 more
exaly  

Paradoxical relationship between resting full-cycle ratio and fractional flow reserve

Journal of Cardiology
Yuya, Tanabe, Yuichi, Saito, Shunsuke, Nakamura, Tatsuro, Yamazaki, Hideki, Kitahara, Yoshio, Kobayashi   +5 more
openaire   +2 more sources

Clinical Outcome of Lesions With Discordant Results Among Different Invasive Physiologic Indices　― Resting Distal Coronary to Aortic Pressure Ratio, Resting Full-Cycle Ratio, Diastolic Pressure Ratio, Instantaneous Wave-Free Ratio, and Fractional Flow Reserve ―

Circulation Journal, 2019
Ki Hong Choi, Doyeon Hwang, Yun-Kyeong Cho   +2 more
exaly  

Resting Full Cycle Ratio (RFR) and Instantaneous Wave-Free Ratio (iFR): Simultaneous Measurements for Assessment of Coronary Stenosis

Cardiovascular Revascularization Medicine, 2019
Grigoris V. Karamasis, Thomas R. Keeble, Andreas S. Kalogeropoulos, John R. Davies, Gerald J. Clesham   +4 more
openaire   +1 more source

Clinical feasibility of resting full-cycle ratio as a unique non-hyperemic index of invasive functional lesion assessment

Heart and Vessels, 2020
Hirohiko Ando, Katsuhisa Waseda, Tetsuya Amano   +2 more
exaly