نتایج جستجو برای: sono avc

تعداد نتایج: 5095  

Journal: :Journal of the American College of Cardiology 2014
Marie-Annick Clavel Philippe Pibarot David Messika-Zeitoun Romain Capoulade Joseph Malouf Shivani Aggarval Phillip A Araoz Hector I Michelena Caroline Cueff Eric Larose Jordan D Miller Alec Vahanian Maurice Enriquez-Sarano

BACKGROUND Aortic valve calcification (AVC) load measures lesion severity in aortic stenosis (AS) and is useful for diagnostic purposes. Whether AVC predicts survival after diagnosis, independent of clinical and Doppler echocardiographic AS characteristics, has not been studied. OBJECTIVES This study evaluated the impact of AVC load, absolute and relative to aortic annulus size (AVCdensity), ...

Journal: :Circulation 2001
K Pohle R Mäffert D Ropers W Moshage N Stilianakis W G Daniel S Achenbach

BACKGROUND Recent studies demonstrated an influence of atherosclerotic risk factors on the progression of aortic valve stenosis. The extent of aortic valve calcification (AVC) was also found to be a strong predictor of stenosis progression. We investigated the influence of the LDL cholesterol level (LDL), other standard cardiovascular risk factors, and the extent of coronary calcification (CC) ...

Journal: :Journal of the American Board of Family Medicine : JABFM 2009
Mayurkumar Bhakta Charles Bruce David Messika-Zeitoun Lawrence Bielak Patrick F Sheedy Patricia Peyser Maurice Sarano

BACKGROUND The use of oral calcium supplementation among the elderly for prevention and treatment of osteoporosis and osteopenia is increasing. The incidence of aortic valve disease and coronary artery disease also is increasing. No study thus far has been done to demonstrate whether this affects the progression of calcification in both the valves and vasculature. We sought to determine whether...

2015
Jianhui Wu Jing Zhao Zhangfeng Wang Zenghong Li Jie Luo Bing Liao Zhiyun Yang Qihong Liu Bin Wang Weiping Wen Wenbin Lei Rasid Toksoz. Mustafa

This article explores the features and the role of the anterior vocal commissure (AVC) structure and the surface morphologies of glottic carcinomas with AVC involvement to provide a reference for the selection of transoral carbon dioxide (CO2) laser surgery. A total of 31 cases of glottic carcinomas with AVC involvement from May 2012 to January 2014 were included. All patients underwent electro...

Journal: :JACC. Cardiovascular imaging 2012
David S Owens Matthew J Budoff Ronit Katz Junichiro Takasu David M Shavelle J Jeffrey Carr Susan R Heckbert Catherine M Otto Jeffrey L Probstfield Richard A Kronmal Kevin D O'Brien

OBJECTIVES This study sought to test whether aortic valve calcium (AVC) is independently associated with coronary and cardiovascular events in a primary-prevention population. BACKGROUND Aortic sclerosis is associated with increased cardiovascular morbidity and mortality among the elderly, but the mechanisms underlying this association remain controversial. Also, it is unknown whether this as...

2007
M. Rottinger N. Seifert S. Selberherr

The recently developed Auger Voltage Contrast (AVC) method is an electronic probing technique for rapid delineation of pn-junctions. The simulation of AVC measurements can improve the understanding of the involved physics and facilitate the development of procedures for automatic extraction of the junction position from measurement data. This paper describes the simulation of AVC measurements u...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2009
Raymond K Auerbach Ghia Euskirchen Joel Rozowsky Nathan Lamarre-Vincent Zarmik Moqtaderi Philippe Lefrançois Kevin Struhl Mark Gerstein Michael Snyder

Disruptions in local chromatin structure often indicate features of biological interest such as regulatory regions. We find that sonication of cross-linked chromatin, when combined with a size-selection step and massively parallel short-read sequencing, can be used as a method (Sono-Seq) to map locations of high chromatin accessibility in promoter regions. Sono-Seq sites frequently correspond t...

2017
S. Şahinkaya

The effects of sonication, potassium ferrate (K2FeO4) oxidation and their simultaneous combination (called “sono-oxidative pre-treatment”) on chemical properties and anaerobic digestion of waste activated sludge (WAS) were investigated and compared comprehensively. Based on chemical parameters, the optimum operating conditions were found to be 0.3 g K2FeO4/g total solids (TS) dosage for 2-h ind...

2007
J. Tomka P. Polák D. Peškovičová E. kruPa L. Bartoň

The possibility of in vivo carcass quality prediction in breeding process using ultrasound method was studied. attention was paid to marbling and intramuscular fat content prediction and the effect of breed and age on prediction accuracy was evaluated. The study was carried out on 75 bulls (38 Slovak Simmental, 14 Beef Polled Simmental and 23 charolais). The ultrasound machine aLoka SSD-500 wit...

Journal: :Archives of internal medicine 2005
Kevin D O'Brien Jeffrey L Probstfield Michael T Caulfield Khurram Nasir Junichiro Takasu David M Shavelle Audrey H Wu Xue-Qiao Zhao Matthew J Budoff

BACKGROUND Calcium accumulation in the aortic valve is a hallmark of aortic sclerosis and aortic stenosis. Because lipoproteins, angiotensin-converting enzyme, and angiotensin II colocalize with calcium in aortic valve lesions, we hypothesized an association between angiotensin-converting enzyme inhibitor (ACEI) use and lowered aortic valve calcium (AVC) accumulation, as measured by electron be...

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