In the past few weeks the discussion on stress testing and EKGs created a lot of positive feedback for more. This edition: echocardiography, the special name for ultrasounds of the heart. Why, how, what types, what uses. This amazing application of technology used first in industry and now in medical care for the last 40 years is a stunning achievement. After listening to this segment you will know the ins and outs of echo, doppler, TEE and TTE.