Stress Doppler Echocardiography.pdf

Stress Doppler Echocardiography

For almost 40 years, a small but intense group of cardiovascular investigators have evaluated cardiac performance by measuring the mass, velocity, and acceleration of blood ejected from the left ventricle. These studies reveal that energy is transferred from ventricle to blood very early in systole, and that the left ventricle is charac­ terized as an impulse generator. Recent explosive developments in Doppler echocar­ diography have allowed study of the energetics of ventricular contraction through noninvasive acceleration, velocity, and volumetric flow measurements. Compared against reference standards of ejection fraction, dP/dt, and instantaneous pressure gradient across the aortic valve, Doppler acceleration and velocity measurements are highly sensitive to changes in ventricular performance. Most patients seeking cardiovascular care present with coronary artery disease as a chief concern. This book focuses upon identification of coronary disease presence and severity through the evaluation of left ventricular Doppler ejection responses to stress loading. Chapters I through 4 detail basic research on the dynamics of left ventricular ejection in ischemic and nonischemic animal models. Chapters 5 through 13 present clinical correlates of changes in the Doppler systolic ejection pulse during exercise and under pharmacologic stress loading. Angiographic anatomy, thallium perfusion defects, and radionuclear ejection fraction responses serve as reference standards. Chapters 14, 15 and 16 address applications of Doppler echocardiography during the stresses of brief coronary occlusion, myocar­ dial infarction and post infarction recovery, while chapters 17 and 20 illustrate applications of stress Doppler techniques in valvular heart disease.

A treadmill stress test evaluates your heart’s response to physical activity through the monitoring of your heart rate, blood pressure, and electrocardiograms while you exercise on a treadmill. When the two tests are combined, an assessment can be made of the status of your heart at rest, as well as during and immediately following stress

2.46 MB DATEIGRÖSSE
9401067007 ISBN
Englisch SPRACHE
Stress Doppler Echocardiography.pdf

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Sofia Voigt

An echocardiography, echocardiogram, cardiac echo or simply an echo, is an ultrasound of the ... The use of stress echocardiography may also help determine whether any chest pain or associated ... of the blood flowing through the heart by Doppler echocardiography, using pulsed- or continuous-wave Doppler ultrasound. It is subdivided into M-mode, two-dimensional (2-D), spectral Doppler, color Doppler, contrast, and stress echocardiography (Beers and Berkow, 1999).

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Matteo Müller

Stress Doppler Echokardiographie - Deutsch-Englisch ... Stress echocardiography. Stress echocardiography is a diagnostic imaging technique using bicycle ergometer or drug-induced stress to examine whether all the wall sections of the left ventricle are vital or whether a perfusional disturbance exists in the region of the coronary arteries .

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Noel Schulze

Stress echocardiography. Stress echocardiography is a diagnostic imaging technique using bicycle ergometer or drug-induced stress to examine whether all the wall sections of the left ventricle are vital or whether a perfusional disturbance exists in the region of the coronary arteries .

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Jason Lehmann

dict.cc Wörterbuch :: echocardiography :: Englisch-Deutsch ...

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Jessica Kohmann

Stress echocardiography has been introduced many years ago as a valuable method in the detection of myocardial ischemia in patients with known or suspected coronary artery disease by assessing wall motion abnormalities [].At least in some centers two-dimensional stress echocardiography is performed in the standing position throughout the exercise stress test with image acquisition at peak