نتایج جستجو برای: stenosis severity

تعداد نتایج: 214050  

2013
Gavin A. D’Souza Srikara V. Peelukhana Rupak K. Banerjee

Diagnosis of the functional severity of an epicardial coronary stenosis using parameters like Fractional Flow Reserve, FFR (ratio of distal to proximal pressure of a stenotic region), might be affected in the presence of an additional downstream stenosis. In order to assess this effect, we have performed an in-vitro experiment which is used to validate a computational study. Three combinations ...

Journal: :Cardiovascular Ultrasound 2006
Pedro L Sanchez AnnaMaria Mazzone

Degenerative aortic valve stenosis includes a range of disorder severity from mild leaflet thickening without valve obstruction, "aortic sclerosis", to severe calcified aortic stenosis. It is a slowly progressive active process of valve modification similar to atherosclerosis for cardiovascular risk factors, lipoprotein deposition, chronic inflammation, and calcification. Systemic signs of infl...

2015
Harrie C M van den Bosch Jos J M Westenberg Wikke Setz-Pels John Wondergem Ron Wolterbeek Lucien E M Duijm Joep A W Teijink Albert de Roos

BACKGROUND Vascular disease expression in one location may not be representative for disease severity in other vascular territories, however, strong correlation between disease expression and severity within the same vascular segment may be expected. Therefore, we hypothesized that aortic stiffening is more strongly associated with disease expression in a vascular territory directly linked to t...

2009
Emmanuel Gaillard Lyes Kadem

INTRODUCTION Aortic valve stenosis (AS) is an important cardiovascular disease affecting between 2 and 7% of the elderly population in industrialized countries. AS often coexists with subaortic stenosis (SAS) [1], which is generally caused by a protrusion of the hypertrophied left ventricular outflow tract (LVOT) just below the aortic valve. The SAS may potentially interfere with the assessment...

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