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Transesophageal Echocardiography (TEE)

A transesophageal electrocardiogram (TEE) test is a minimally invasive type of echo test.  After you are mildly sedated, a special ultrasound transducer (a small instrument that picks up sound waves) is passed into your esophagus (commonly known as your "food pipe"). By using this method, the transducer can be positioned directly behind the heart and is useful for patients for whom standard echo images cannot be obtained. 

TEE is often combined with Doppler ultrasound and color Doppler to evaluate blood flow across the heart’s valves. TEE is often used when the results from standard echo studies were not sufficient or when your doctor wants a closer look at your heart.