Results 271 to 280 of about 17,442 (284)

Personalised fractional flow reserve: a novel concept to optimise myocardial revascularisation

EuroIntervention, 2019
Fractional flow reserve (FFR) represents the percentage reduction in coronary flow relative to a hypothetically normal artery; however, percutaneous coronary intervention (PCI) seldom achieves physiological normality (FFR 1.00), particularly in the context of diffuse disease.
D. R. Hose, R.D. Gosling, Julian Gunn, Patricia V. Lawford, Paul Morris   +4 more
openaire   +2 more sources

Quantification of myocardial perfusion reserve at 1.5 and 3.0 Tesla: a comparison to fractional flow reserve

The International Journal of Cardiovascular Imaging, 2012
The objective of this study was to compare quantitative analysis of cardiac magnetic resonance (CMR) perfusion at 1.5 and 3 T against fractional flow reserve (FFR) as measured invasively. FFR is considered by many investigators to be a reliable standard to determine hemodynamically significant coronary artery stenoses.
Peter Bernhardt, Jochen Wöhrle, Thomas Walcher, Wolfgang Rottbauer   +3 more
openaire   +3 more sources

Reasons and implications of agreements and disagreements between coronary flow reserve, fractional flow reserve, and myocardial perfusion imaging

Journal of Nuclear Cardiology, 2018
Information on coronary physiology and myocardial blood flow (MBF) in patients with suspected angina is increasingly important to inform treatment decisions. A number of different techniques including myocardial perfusion imaging (MPI), noninvasive estimation of MBF, and coronary flow reserve (CFR), as well as invasive methods for CFR and fractional ...
Daniel S. Berman, Mahsaw Motlagh, Manish Motwani, Anuj Gupta, Piotr J. Slomka   +4 more
openaire   +2 more sources

The temporal recovery of fractional flow reserve, coronary flow reserve and index of microcirculatory resistance following myocardial infarction

Current Opinion in Cardiology, 2015
The purpose of this review was to summarize the healing processes after myocardial infarction (MI) and to relate these temporal changes to data from serial imaging obtained by cardiac magnetic resonance, and then to relate these findings to the invasive measures of the indices of coronary physiology (e.g., fractional flow reserve, coronary flow reserve
Gregor Fahrni, Giovanni Luigi De Maria, Adrian P. Banning   +2 more
openaire   +3 more sources

The diagnostic performance of CT-derived fractional flow reserve for evaluation of myocardial ischaemia confirmed by invasive fractional flow reserve: a meta-analysis

Clinical Radiology, 2015
To review the literature on the diagnostic accuracy of CT-derived fractional flow reserve (FFRCT) for the evaluation of myocardial ischaemia in patients with suspected or known coronary artery disease, with invasive fractional flow reserve (FFR) as the reference standard.A PubMed, EMBASE, and Cochrane cross-search was performed.
Yanting Luo, Shao-Qiang Li, Xiaoying Tang, Jinlai Liu, Ruimin Dong, Long Peng   +5 more
openaire   +2 more sources

Measurement of myocardial fractional flow reserve during coronary angioplasty in patients with old myocardial infarction

Catheterization and Cardiovascular Diagnosis, 1997
Although myocardial fractional flow reserve (FFRmyo) has been demonstrated to be a useful index for determining functional significance of coronary stenosis, the data in previous studies was derived from a highly selected group of patients. The aim of this study was to investigate the value of FFRmyo in a more clinically relevant group of patients ...
Etsuro Himeno, Akio Kuroiwa, Yasuhide Nakashima, Shinjou Sonoda, Masaaki Takeuchi   +4 more
openaire   +3 more sources

Fractional Flow Reserve—Dichotomous Decisions in Myocardial Ischemia

Circulation: Cardiovascular Interventions, 2022
Ole Frøbert, Matthias Götberg
openaire   +3 more sources

Impact of myocardial supply area on the transstenotic hemodynamics as determined by fractional flow reserve

Catheterization and Cardiovascular Interventions, 2013
ObjectivesThe aim of this study was to investigate the impact of myocardial area supplied by the coronary artery on fractional flow reserve (FFR).BackgroundVarious factors other than the degree of epicardial stenosis influence the physiological significance of a coronary artery stenosis.MethodsA total of 296 coronary lesions in 217 patients were ...
Yuichi Ozaki, Tomoyuki Yamaguchi, Takashi Kubo, Takashi Akasaka, Shingo Ota, Kumiko Hirata, Takashi Tanimoto, Atsushi Tanaka, Teruaki Wada, Kohei Ishibashi, Makoto Orii, Toshio Imanishi, Takashi Yamano, Kunihiro Shimamura, Yasushi Ino, Yasutsugu Shiono, Hironori Kitabata   +16 more
openaire   +3 more sources

Interpretation of fractional flow reserve in ST-elevation myocardial infarction culprit lesions

Coronary Artery Disease, 2015
Pressure wire assessment of the infarct-related artery (IRA) in ST-elevation myocardial infarction (STEMI) is not recommended until microcirculatory dysfunction recovers.The objective of this study was to assess serial fractional flow reserve (FFR) and the index of microcirculatory resistance (IMR) in the IRA of STEMI patients to better understand and ...
Sarah C. Clarke, Liam M. McCormick, Nick E.J. West, Catherine Jaworski, Adam J. Brown, Stephen P. Hoole   +5 more
openaire   +3 more sources

Handgrip-enhanced myocardial fractional flow reserve for assessment of coronary artery stenoses

American Heart Journal, 2006
Fractional flow reserve (FFR) may yield false-negative results in up to 12% of lesions tested, and there is a zone of uncertainty at borderline values.Forty-eight patients were investigated by means of dobutamine stress echocardiography (DSE), coronary angiography, and FFR assessment of 48 coronary lesions before, during, and immediately after handgrip
Demosthenes G. Katritsis, Efthalia Tzanalaridou, Socrates Korovesis, Demosthenes B. Panagiotakos, Michael M. Webb-Peploe, Evangelia Karvouni, Ilias Karabinos, Eleftherios Giazitzoglou   +7 more
openaire   +2 more sources