Results 261 to 270 of about 19,043 (300)

Relation Between Myocardial Fractional Flow Reserve Calculated From Coronary Pressure Measurements and Exercise-Induced Myocardial Ischemia

Circulation, 1995
Background Myocardial fractional flow reserve (FFR myo ) is a functional index of stenosis severity that can be derived from intracoronary pressure measurements performed during maximal vasodilatation. It is defined as the maximal myocardial perfusion during hyperemia in the presence of a stenosis in the
de Bruyne, B., Bartunek, J., Sys, Stanislas, Heyndrickx, G.R.   +3 more
openaire   +5 more sources

Relationship between coronary volume, myocardial mass, and post‐PCI fractional flow reserve

Catheterization and Cardiovascular Interventions, 2023
AbstractBackgroundFractional flow reserve (FFR) measured after percutaneous coronary intervention (PCI) carries prognostic information. Yet, myocardial mass subtended by a stenosis influences FFR. We hypothesized that a smaller coronary lumen volume and a large myocardial mass might be associated with lower post‐PCI FFR.AimWe sought to assess the ...
Mileva N., Ohashi H., Paolisso P., Leipsic J., Mizukami T., Sonck J., Norgaard B. L., Otake H., Ko B., Maeng M., Munhoz D., Nagumo S., Belmonte M., Vassilev D., Andreini D., Barbato E., Koo B. -K., De Bruyne B., Collet C.   +18 more
openaire   +2 more sources

CT Assessment of Myocardial Perfusion and Fractional Flow Reserve

Progress in Cardiovascular Diseases, 2015
Coronary computed tomography angiography (CTA) offers a non-invasive method to detect coronary plaque and stenosis. However, to date, CTA has been most useful as a method of ruling out coronary artery disease (CAD) among patients with low to intermediate pretest probability of significant CAD.
Edward, Hulten, Amir, Ahmadi, Ron, Blankstein   +2 more
openaire   +2 more sources

Myocardial fractional flow reserve

Herz, 2011
Revascularization of coronary artery lesions should be based on objective evidence of ischemia, as recommended by the guidelines of the European Society of Cardiology. However, even in the case of stable coronary artery disease and elective percutaneous coronary intervention (PCI), pre-procedural noninvasive stress test results are available in a ...
M, Lindstaedt, A, Mügge
openaire   +2 more sources

On-site assessment of computed tomography-derived fractional flow reserve in comparison with myocardial perfusion imaging and invasive fractional flow reserve

Heart and Vessels, 2020
Myocardial perfusion imaging (MPI) using Single Photon Emission Computed Tomography has been established as a standard noninvasive tool for risk stratification of coronary artery disease (CAD). We evaluated the diagnostic performance of on-site workstation-based computed tomography-derived fractional flow reserve (CT-FFR) in comparison with MPI using ...
Keiichi, Miyajima, Sadako, Motoyama, Masayoshi, Sarai, Hideki, Kawai, Yasuomi, Nagahara, Ryota, Matsumoto, Wakaya, Fujiwara, Takashi, Muramatsu, Hiroshi, Takahashi, Hiroyuki, Naruse, Junnichi, Ishii, Takeshi, Kondo, Jagat, Narula, Hideo, Izawa, Yukio, Ozaki   +14 more
openaire   +2 more sources

Myocardial Perfusion and Fractional Flow Reserve

2013
Myocardial CT perfusion imaging is a rapidly evolving technology that allows assessment of the functional significance of potentially obstructive coronary stenosis. The opportunity for quantification of myocardial perfusion is the greatest potential advantage of CT compared with other perfusion techniques.
K. Kitagawa, A. Erglis, M. Dewey
openaire   +1 more source

Myocardial Fractional Flow Reserve and Clinical Outcome

1997
There is ample inferential evidence that patients with physiologically significant stenoses are at increased risk1. Patients with proven coronary artery disease and in whom signs of myocardial ischemia are observed at low workload have an adverse event rate which is four times higher than in those with similarly severe stenoses but in whom ischemia can
Nico H. J. Pijls, Bernard De Bruyne
openaire   +1 more source

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.
Rebecca C, Gosling, Paul D, Morris, Patricia V, Lawford, D Rodney, Hose, Julian P, Gunn   +4 more
openaire   +2 more sources

Impact of Right Atrial Pressure on Fractional Flow Reserve Measurements: Comparison of Fractional Flow Reserve and Myocardial Fractional Flow Reserve in 1,600 Coronary Stenoses.

JACC. Cardiovascular interventions, 2016
This study sought to assess the impact of a wide range of mean right atrial pressure (Pra) on fractional flow reserve (FFR) measurements.FFR invasively assesses the ischemic potential of coronary stenoses. FFR is calculated as the ratio of mean distal coronary pressure (Pd) to mean aortic pressure (Pa) during maximal hyperemia. The Pra is considered to
Toth, Gabor G, De Bruyne, Bernard, Rusinaru, Dan, DI GIOIA, GIUSEPPE, Bartunek, Jozef, PELLICANO, MARIANO, Vanderheyden, Marc, Adjedj, Julien, Wijns, William, Pijls, Nico H. J, BARBATO, EMANUELE   +10 more
openaire   +4 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 ...
Stephen P, Hoole, Adam J, Brown, Catherine, Jaworski, Liam M, McCormick, Sarah C, Clarke, Nick E J, West   +5 more
openaire   +2 more sources