irritation
发表于 2025-3-26 22:49:59
Doppler treadmill studies in coronary patients: Angiographic correlates,his population. In addition, there has been a continuing search for improved sensitivity and specificity of exercise testing the diagnosis of coronary artery disease. Because of these combined needs, investigators have used Doppler derived parameters of aortic flow to assess for abnormalities during exercise.
攀登
发表于 2025-3-27 01:21:46
Uses and limitations of exercise Doppler echocardiography in the clinical evaluation of ischemic he atherosclerosis . Methods available for noninvasive evaluation of exercise-induced myocardial ischemia include: electrocardiography, radionuclide techniques, two-dimensional echocardiography, and Doppler echocardiography.
窝转脊椎动物
发表于 2025-3-27 07:48:16
Pharmacologic Doppler stress testing in coronary artery disease,tely reflect global left ventricular systolic function (Figure 1). In fact, Doppler evaluation of aortic blood flow velocities provides one of the few non-invasive methods by which beat-to-beat changes in left ventricular function may be assessed.
外科医生
发表于 2025-3-27 11:37:25
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使满足
发表于 2025-3-27 15:53:45
0166-9842 ocity, 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 al
袭击
发表于 2025-3-27 19:14:07
The left ventricular impulse,rt disease. In the past few decades, a technical revolution has provided cardiologists with an expanding array of methods for dynamic, clinical evaluation of the heart in terms of changes in pressures, dimensions, flow rates and related variables. Widespread application of these advanced technologie
Creditee
发表于 2025-3-27 23:04:52
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FOLLY
发表于 2025-3-28 03:12:34
Effects of beta blockade, beta stimulation, and afterload upon Doppler ejection dynamics,and the ascending aorta . Early studies in dogs used electromagnetic flowmetry and fluid-filled catheter systems with adequate frequency responses (> 50 Hz) to demonstrate that peak acceleration occurred at the time of the peak transvalvular pressure gradient . Peak velocity of flow was thou
极小
发表于 2025-3-28 08:56:56
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机警
发表于 2025-3-28 12:50:42
Practical considerations in Doppler stress testing,re not discussed. It is the purpose of this chapter to orient the beginner to equipment, stress testing protocols, details of patient study, discrimination of good and bad data, and data analysis. With these issues in mind, it should be possible for novices to confidently approach patients in the st