نتایج جستجو برای: dse

تعداد نتایج: 893  

2011
Dawod Sharif Amal Sharif-Rasslan Camilia Shahla Uri Rosenschein

BACKGROUND Mitral annular systolic displacement from M-mode echocardiography and velocity from tissue Doppler imaging reflect subendocardial longitudinal systolic LV performance and may precede radial abnormalities. The aim of this study is to evaluate the utility of mitral annular systolic displacement (D) and velocity (V) during dobutamine stress echocardiography (DSE) in detecting left ventr...

Journal: :Chemical Engineering Journal 2022

• Seawater is acidified to a pH of 2 while hydrogen evolution reaction (HER) occurs. Interaction between inorganic precipitation and water dissociation bipolar membrane. Acidification seawater reduces cathode potential for HER. Formation dispersed precipitates suppressed by acidification. acidification an effective electrolyte engineering strategy direct electrolysis. This report describes elec...

2007
Paulo J. Silva

The compatibility of the pure power law infrared solution of QCD Dyson-Schwinger equations (DSE) and lattice data for the gluon and ghost propagators in Landau gauge is discussed. For the gluon propagator, the lattice data is compatible with the DSE infrared solution with an exponent κ ∼ 0.53, measured using a technique that suppresses finite volume effects and allows to model these corrections...

2000
Paul Breen Amy Kazura

The complexity and size of the integrated command and control system make it extremely difficult for acquisition decision-makers to obtain an omniscient view of the whole system. This view is necessary for examining alternative design options. This limited perspective deters the development community’s understanding of how a proposed “improvement” will integrate, augment and/or supplement field...

Journal: :Chest 2001
C Vigna M Stanislao V De Rito A Russo R Natali T Santoro F Loperfido

STUDY OBJECTIVES To evaluate dipyridamole stress echocardiography (DSE) for predicting coronary artery diseases (CADs) in patients with complete left bundle-branch block (LBBB). DESIGN Comparison of DSE and dipyridamole sestamibi myocardial perfusion scintigraphy (sestamibi). SETTING Tertiary-care cardiac referral center. PATIENTS Fifty-four consecutive patients (26 men; mean [+/- SD] age...

Journal: :Physical review. D, Particles and fields 1992
Lu

We discuss the implementation of the Dressed Skeleton Expansion (DSE) and analyse various features of this perturbative calculational method in simple field theory models in 1 + 1 dimension. In particular, we investigate issues concerning loop skeleton diagrams, renormalization in the massive case, and the usage of DSE for vertices involving matrix structures. Submitted to Physical Review D * W...

Journal: :JAMA 2001
E Boersma D Poldermans J J Bax E W Steyerberg I R Thomson J D Banga L L van De Ven H van Urk J R Roelandt

CONTEXT Patients who undergo major vascular surgery are at increased risk of perioperative cardiac complications. High-risk patients can be identified by clinical factors and noninvasive cardiac testing, such as dobutamine stress echocardiography (DSE); however, such noninvasive imaging techniques carry significant disadvantages. A recent study found that perioperative beta-blocker therapy redu...

Journal: :Chest 2001
D Poldermans J J Bax A Elhendy F Sozzi E Boersma I R Thomson L J Jordaens

STUDY OBJECTIVE To assess the long-term prognostic value of dobutamine stress echocardiography (DSE) for cardiac events (cardiac death, myocardial infarction, and late revascularization) in patients with atrial fibrillation (AF). METHODS Baseline ECGs were studied in patients undergoing DSE between 1989 and 1998. Sixty-nine patients had AF before DSE. Prognostic value of DSE in these patients...

Journal: :Journal of the American College of Cardiology 1999
K C Hung F C Lin M S Chern H J Chang I C Hsieh D Wu

OBJECTIVES The purpose of this study was to investigate the possible mechanism and the clinical significance of transient atrioventricular block (AVB) during dobutamine stress echocardiography (DSE). BACKGROUND Transient AVB occurs rarely during DSE; however, the mechanisms responsible for blocks are unclear. METHODS A retrospective analysis of clinical, echocardiographic, catheterization, ...

Journal: :Chest 1998
A Elhendy R T van Domburg J J Bax P R Nierop M L Geleijnse M M Ibrahim J R Roelandt

OBJECTIVES To compare the accuracy of dobutamine stress echocardiography (DSE) and simultaneous 99mTc sestamibi (MIBI) single-photon emission CT (SPECT) imaging for the diagnosis of coronary artery stenosis in women. PATIENTS Seventy women with limited exercise capacity referred for evaluation of myocardial ischemia. METHODS DSE (up to 40 microg/kg/min) was performed in conjunction with str...

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