Results 311 to 320 of about 26,752 (329)

Fractional Flow Reserve—Dichotomous Decisions in Myocardial Ischemia

Circulation: Cardiovascular Interventions, 2022
Ole Frøbert, Matthias Götberg
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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 ...
M, Takeuchi, E, Himeno, S, Sonoda, Y, Nakashima, A, Kuroiwa   +4 more
openaire   +2 more sources

Prognostic Role of Myocardial Flow Reserve in Heart Failure With Preserved Ejection Fraction

Kardiologiia, 2023
Aim      To study the role of myocardial blood flow (MBF) and myocardial flow reserve (MFR) in patients with heart failure with preserved ejection fraction (HFpEF) in stratifying the risk of HFpEF progression during 12 months of follow-up.Material and methods  The study included 58 patients with non-obstructive coronary artery disease and HFpEF ...
openaire   +2 more sources

Quantified dual energy computed tomography perfusion imaging using myocardial iodine concentration: Validation using CT derived myocardial blood flow and invasive fractional flow reserve in a porcine model.

Journal of cardiovascular computed tomography, 2019
BACKGROUND Myocardial CT perfusion imaging with dual energy (DE-CTP) can produce myocardial iodine perfusion maps. This study evaluated the accuracy of first pass myocardial iodine concentration in DE-CTP compared to CT derived dynamic myocardial blood ...
R. Poulter, D. Wood, A. Starovoytov, Stephanie Smith, Mehran Chitsaz, J. Mayo   +5 more
semanticscholar   +1 more source

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 ...
Yasutsugu, Shiono, Takashi, Kubo, Atsushi, Tanaka, Hironori, Kitabata, Yasushi, Ino, Takashi, Tanimoto, Teruaki, Wada, Shingo, Ota, Yuichi, Ozaki, Makoto, Orii, Kunihiro, Shimamura, Kohei, Ishibashi, Takashi, Yamano, Tomoyuki, Yamaguchi, Kumiko, Hirata, Toshio, Imanishi, Takashi, Akasaka   +16 more
openaire   +2 more sources

13N-ammonia PET/CT stress myocardial blood flow compared to fractional flow reserve in coronary artery disease

Nuclear medicine communications, 2019
Aim In this retrospective study, fractional flow reserve was compared to stress myocardial blood flow derived by 13 N-ammonia (13 N-NH3) myocardial perfusion PET/CT.
Jouke J. Boer, J. Kappelhof, F. M. van der Zant, M. Wondergem, H. de Swart, R. Knol   +5 more
semanticscholar   +1 more source

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 ...
Stephen P, Hoole, Adam J, Brown, Catherine, Jaworski, Liam M, McCormick, Sarah C, Clarke, Nick E J, West   +5 more
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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, Socrates, Korovesis, Evangelia, Karvouni, Eleftherios, Giazitzoglou, Ilias, Karabinos, Efthalia, Tzanalaridou, Demosthenes, Panagiotakos, Michael M, Webb-Peploe   +7 more
openaire   +2 more sources

Prognostic Significance of Computed Tomography‐Derived Fractional Flow Reserve for Long‐Term Outcomes in Individuals With Coronary Artery Disease

Journal of the American Heart Association : Cardiovascular and Cerebrovascular Disease
Background Data on the predictive value of coronary computed tomography angiography–derived fractional flow reserve (CT‐FFR) for long‐term outcomes are limited. Methods and Results A retrospective pooled analysis of individual patient data was performed.
Zhennan Li, Tingfeng Xu, Zhiqiang Wang, Yaodong Ding, Yang Zhang, Li Lin, Minxian Wang, Lei Xu, Yong Zeng   +8 more
semanticscholar   +1 more source

Myocardial Bridging and Fractional Flow Reserve

Revista Española de Cardiología (English Edition), 2005
José M, Hernández-García, Juan H, Alonso-Briales, Eduardo, de Teresa   +2 more
openaire   +2 more sources