Endoscopic ultrasound is a type of imaging test. It is used to see organs in and near the digestive tract.
How the Test is Performed
Ultrasound is a way to see the inside of the body using high-frequency sound waves. Endoscopic ultrasound does this with a thin, flexible tube device called an endoscope.
- This tube is passed either through the mouth or through the rectum and into the digestive tract.
- Sound waves are sent out the end of the tube and bounce off the organs in the body.
- A computer receives these waves and uses them to create a picture of what is inside.
- This test does not expose you to harmful radiation.
If a sample or biopsy is needed, a thin needle can be passed through the tube to collect fluid or tissue. This does not hurt.
The test takes 30 to 90 minutes to complete.