الفهرس 
Aortic valve anatomyOnly 14 pages are availabe for public view
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Abstract
Changes of coronary artery fiow velocity profile were described using angiography, doppler catheters, epicardial doppler echocardiography,and transthoracic doppler echocardiography but transesophageal approach allows high-resolution view of the base of the heart unimpeded by chest wall or lung tissue.