Sound is a form of energy. It is that form of energy which makes us hear. Sound wave is a vibratory disturbance in a medium which carries energy from one point to another without there being a direct ...

Transthoracic echocardiography utilizes both visual (qualitative) and quantitative tools to evaluate cardiac structure and function Traditional techniques, such as two-dimensional and Doppler imaging, ...

This was a useful method for detecting tornadoes before the advent of modern Doppler radar systems. A conventional radar transmitter sends out microwave pulses, and when this energy strikes an object, ...

Feb. 25, 2004 — Pulmonary hypertension increases mortality in sickle cell disease, according to the results of a study published in the Feb. 26 issue of the New England Journal of Medicine. Doppler ...

Although not for all patients assessed for aortic stenosis, EBCT could tilt the balance toward or away from a recommendation for surgery when echo findings are inconclusive, coauthor Dr Maurice ...