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Basic Principles of Colour Doppler Echocardiography

All About Cardiovascular System and Disorders

Colour Doppler echocardiography is very useful in giving a quick visual assessment of regurgitation and stenosis of heart valves. For example, when the VSD is small, the pressure difference between the right and left ventricles is high. It will also show abnormal flows as in an atrial or ventricular septal defect.

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Evaluation of JVP

All About Cardiovascular System and Disorders

The Y descent is shallow in tricuspid stenosis, and absent in cardiac tamponade. Right atrial hypertrophy as in tricuspid stenosis, pulmonary stenosis and pulmonary hypertension. But in a VSD with pulmonary hypertension A wave is not prominent. X descent, X prime descent and Y descent.