Results 21 to 30 of about 7,681,842 (240)

Does the Instantaneous Wave-Free Ratio Approximate the Fractional Flow Reserve?

Journal of the American College of Cardiology, 2013
This study sought to examine the clinical performance of and theoretical basis for the instantaneous wave-free ratio (iFR) approximation to the fractional flow reserve (FFR).Recent work has proposed iFR as a vasodilation-free alternative to FFR for making mechanical revascularization decisions.
Koen Marques, Marcel van `T Veer, Maria Siebes   +2 more
exaly   +8 more sources

Differential predictability for high-risk plaque characteristics between fractional flow reserve and instantaneous wave-free ratio [PDF]

Scientific Reports, 2023
To evaluate the differential associations of high-risk plaque characteristics (HRPC) with resting or hyperemic physiologic indexes (instantaneous wave-free ratio [iFR] or fractional flow reserve [FFR]), a total of 214 vessels from 127 patients with ...
Joo Myung Lee, Doosup Shin, Seung Hun Lee, Ki Hong Choi, Sung Mok Kim, Eun Ju Chun, Kwan Yong Lee, Doyeon Hwang, Sung Gyun Ahn, Adam J. Brown, Hernán Mejía-Rentería, Adrien Lefieux, David Molony, Kiyuk Chang, Tsunekazu Kakuta, Javier Escaned, Habib Samady   +16 more
doaj   +2 more sources

Change in instantaneous wave-free ratio in the donor artery in multivessel coronary disease: a case report [PDF]

Российский кардиологический журнал, 2022
Patients with multivessel coronary artery disease require an individual approach when choosing tactics for myocardial revascularization. In some cases, additional methods for assessing the stenosis significance should be used, such as measuring the ...
F. B. Shukurov, T. P. Baronets, B. A. Rudenko, D. K. Vasiliev, D. A. Feshchenko   +4 more
doaj   +2 more sources

The reasons why fractional flow reserve and instantaneous wave-free ratio are similar using wave separation analysis [PDF]

BMC Cardiovascular Disorders, 2021
Background and objectives Fractional flow reserve (FFR) and instantaneous wave-free ratio (iFR) are the two most commonly used coronary indices of physiological stenosis severity based on pressure. To minimize the effect of wedge pressure (P wedge ), FFR
Soohong Min, Gwansuk Kang, Dong-Guk Paeng, Joon Hyouk Choi   +3 more
doaj   +2 more sources

The Inter-Study Reproducibility of Instantaneous Wave-Free Ratio and Angiography Coregistration [PDF]

Journal of Cardiology, 2020
Coregistration system of instantaneous wave-free ratio (iFR) pullback and angiography has been developed to enhance benefits of physiology oriented percutaneous coronary intervention (PCI), but its reproducibility has not yet been fully assessed.In 51 coronary arteries from 39 patients with stable coronary artery disease, iFR angio-coregistrations were
Yoshiki Matsuo, Atsushi Tanaka, Daisuke Higashioka   +2 more
exaly   +3 more sources

Instantaneous wave free ratio value impact on left internal mammary artery graft patency [PDF]

Perfusion, 2022
Objectives To assess whether instantaneous wave – free ratio (iFR) value is associated with left internal mammary artery (LIMA) graft failure at 12 months follow-up post coronary artery bypass graft (CABG).
Indre Ceponiene, Jankauskas, Antanas, Benetis, Rimantas, Unikas, Ramunas, Stonis, Mindaugas, Mindaugas Stonis, Lenkutis, Tadas, Justin Davies, Povilas Jakuska, Ramunas Unikas, Ceponiene, Indre, Punjabi, Prakash P, Rima Braukyliene, Aldujeli, Ali, Antanas Jankauskas, Braukyliene, Rima, Prakash P Punjabi, Rimantas Benetis, Plisiene, Jurgita, Ali Aldujeli, Ordiene, Rasa, Tadas Lenkutis, Rasa Ordiene, Rudokaite, Gabriele, Gabriele Rudokaite, Jurgita Plisiene, Davies, Justin, Jakuska, Povilas   +27 more
core   +2 more sources

Diagnostic Performance of the Instantaneous Wave-Free Ratio [PDF]

Circulation: Cardiovascular Interventions, 2018
Background— Aim of the present study was to perform a meta-analysis of all available studies comparing the instantaneous wave-free ratio (iFR) with fractional flow reserve (FFR). Methods and Results— Published trials comparing the iFR with FFR were searched for in ...
De Rosa S., Polimeni A., Petraco R., Davies J. E., Indolfi C.   +4 more
openaire   +3 more sources

Agreement of the Resting Distal to Aortic Coronary Pressure With the Instantaneous Wave-Free Ratio. [PDF]

Journal of the American College of Cardiology, 2017
Recently, 2 randomized controlled trials showed that the instantaneous wave-free ratio (iFR), a resting coronary physiological index, is noninferior to fractional flow reserve for guiding revascularization. The resting distal to aortic coronary pressure (Pd/Pa) measured at rest is another adenosine-free index widely available in the cardiac ...
Yuhei Kobayashi, Emanuele Barbato, Colin Berry   +2 more
exaly   +5 more sources

Fractional Flow Reserve Versus Instantaneous Wave‐Free Ratio in Assessment of Lesion Hemodynamic Significance and Explanation of their Discrepancies. International, Multicenter and Prospective Trial: The FiGARO Study [PDF]

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2022
Background The FiGARO (FFR versus iFR in Assessment of Hemodynamic Lesion Significance, and an Explanation of Their Discrepancies) trial is a prospective registry searching for predictors of fractional flow reserve/instantaneous wave‐free ratio (FFR/iFR)
Tomas Kovarnik, Matsuo Hitoshi, Ales Kral, Stepan Jerabek, David Zemanek, Yoshiaki Kawase, Hiroyuki Omori, Toru Tanigaki, Jan Pudil, Alexandra Vodzinska, Marian Branny, Roman Stipal, Petr Kala, Jan Mrozek, Martin Porzer, Tomas Grezl, Kamil Novobilsky, Oscar Mendiz, Karel Kopriva, Martin Mates, Martin Chval, Zhi Chen, Pavel Martasek, Ales Linhart   +23 more
doaj   +2 more sources

Reliability of Instantaneous Wave-Free Ratio (iFR) for the Evaluation of Left Main Coronary Artery Lesions [PDF]

J Clin Med, 2019
The assessment of the left main coronary artery (LMCA) by coronary angiography has several limitations. The fractional flow reserve (FFR) is useful for the functional evaluation of LMCA stenoses.
Ciro Indolfi, Sabato Sorrentino, Jolanda Sabatino, Micaela Conte, Salvatore De Rosa, Carmen Spaccarotella, Marco Contarini, Alberto Polimeni, Giovanni De Velli, Annalisa Mongiardo, Daniel Todaro   +10 more
core   +3 more sources