This is a method of studying the heart's structure and function by analysing sound waves bounced off the heart and recorded by an electronic sensor placed on the chest.
A computer processes the information to produce a 1, 2 or 3 dimensional moving picture that shows how the heart and heart valves function. The procedure is completely painless and does not require any preparation.
The doctor or technician carrying out the investigation will ask you to lie on a couch partly on your left hand side and will use a probe which is placed on the left side of your chest to make the recordings.
The procedure normally takes about 20 to 30 minutes.