the transesophageal echocardiogram uses the same sound-wave technology as a regular echocardiogram.
The ultrasound probe emits sound waves of a certain frequency upon the object
to be imaged, and the return wave frequency is detected by a transducer. The characteristics
of the structure are determined by analyzing the return frequency, and the signals are
converted into computerized images.
Transesophageal echocardiograms are frequently used to monitor the heart during surgery.
Other common uses include searching for an abnormality in the heart or major blood