Results 221 to 230 of about 32,411 (258)

Coronary flow reserve is reduced in sarcoidosis

Atherosclerosis, 2017
Sarcoidosis is a multisystem disease with frequent cardiac involvement, albeit manifest cardiac disease is rare. Though epicardial coronary arteries are not frequently involved, microvascular disease is rather common in both symptomatic and asymptomatic patients. The mechanism of microvascular involvement has not been elaborated yet.
Seref, Kul, Gonul Aciksari, Kutlu, Tolga Sinan, Guvenc, Murat, Kavas, Kenan, Demircioglu, Yusuf, Yilmaz, Halil Ibrahim, Yakar, Asiye, Kanbay, Sibel, Boga, Mustafa, Caliskan   +9 more
openaire   +2 more sources

Invasive assessment of coronary flow reserve

Journal of Nuclear Cardiology, 2008
Coronary angiography is a well-established invasive method of defining coronary anatomy and forms the basis for most decisions between medical therapy, surgery, and percutaneous revascularization in patients with coronary artery disease. Angiography is limited, however, in that it solely provides anatomic information.
Fadi, El-Ahdab, Michael, Ragosta
openaire   +2 more sources

Coronary Flow Reserve

2015
The seminal concept of coronary flow reserve (CFR) was proposed experimentally by Lance K. Gould in 1974 [1]. Under normal conditions, in the absence of stenosis, coronary blood flow can increase approximately four- to sixfold to meet increasing myocardial oxygen demands.
Fausto Rigo, Eugenio Picano
openaire   +1 more source

Lesion Eccentricity and Fractional Flow Reserve and Coronary Flow Reserve in Coronary Arteries

2013
Fractional flow reserve has shown to be a gold standard in assessment of functional significance of coronary artery stenosis. Lesion eccentricity is an important geometric parameter which may affect the translational hemodynamics. Three dimensional quantitative coronary angiography (3D-QCA) was used to reconstruct the proximal or mid left anterior ...
Ashkan Javadzadegan, Andy S. C. Yong, Leonard Kritharides, Masud Behnia   +3 more
openaire   +1 more source

Effects of coronary stenoses on coronary flow reserve and resistance

The American Journal of Cardiology, 1974
Abstract Resting coronary flow and regional distribution are not affected by narrowing of up to 85 percent of arterial diameter and therefore provide little insight into the effects of stenoses on coronary hemodynamics. However, maximal coronary flow and coronary flow reserve are markedly reduced by constrictions that do not affect resting flow ...
K L, Gould, K, Lipscomb
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Coronary vasomotion and coronary flow reserve during exercise

1991
Coronary vasomotion and coronary blood flow are important determinants of myocardial perfusion in patients with coronary artery disease. New digital angiographic techniques allow to study, not only the dimensions of a stenotic lesion (quantitative coronary arteriography), but also coronary flow reserve (parametric imaging).
Hess OM, Felder L, Buechi M, Vassalli F, Jiang Z, Grimm J, Krayenbuehl HP, GAGLIONE, ANTONIO   +7 more
openaire   +3 more sources

Coronary Flow Resistance and Reserve

2015
The coronary arteries are the initial vessels off of the aorta and eventually end in a rich capillary bed that provides blood to the myocytes in a one to one fashion (one capillary for each myocyte.) The myocardial oxygen concentration is at maximum such that any increase in myocardial blood flow (MBF) can only be accomplished by increase in coronary ...
James L. Smith, Mark C. Pica, Amr E. Abbas   +2 more
openaire   +1 more source

[Coronary flow reserve].

Nihon rinsho. Japanese journal of clinical medicine, 2003
T, Nagai, A, Kurita
  +6 more sources

Coronary flow reserve and fractional flow reserve

Coronary flow reserve (CFR) and fractional flow reserve (FFR) are two methods used to provide information for functional significance of coronary artery stenosis. Despite having some limitations, both parameters not only designate severity of stenosis but also provide prognostic information when they are used within appropriate indications.
Ozyol, Ali, Yilmaz, Mehmet Birhan
openaire   +1 more source

Coronary Blood Flow and Coronary Vascular Reserve

1989
The severity of coronary artery disease (CAD) has traditionally been evaluated by assessing coronary artery anatomy and left ventricular function during cardiac catheterization. The reduction in coronary artery blood flow caused by a particular stenosis has been inferred from its appearance on coronary arteriography.1 It is now well known that the ...
Terrence J. W. Baruch, Amar S. Kapoor, Peter R. Mahrer   +2 more
openaire   +1 more source