Doppler Ultrasound

Definition

A Doppler ultrasound is a test that uses sound waves to examine parts of the body. It looks at the motion of fluids in the blood vessels.

Major Abdominal Arteries and Veins
Aorta and Vena Cava
Copyright © Nucleus Medical Media, Inc.

Reasons for Test

Doppler ultrasound is used to:

  • View the flow of blood through vessels and/or the heart
  • View and evaluate blockages to blood flow, such as clots
  • Assess build-up of plaque inside a vessel
  • Monitor blood flow through repaired blood vessels such as bypass grafts
  • Examine a baby during a pregnancy

Possible Complications

In most cases, there are no complications with this test.

What to Expect

Prior to Test

Your doctor may do the following:

  • A physical exam
  • Blood or urine tests

In some cases your doctor may instruct you to:

  • Fast for 8-12 hours before the test. This will decrease the amount of gas in your intestines and make organs easier to see.
  • Have a full bladder before the test. You may need to drink six or more glasses of water without going to the bathroom.
  • Avoid smoking . Smoking can interfere with test results.

Description of the Test

You will lie on a table. Your doctor will put a gel on the skin over the area that will be examined. The gel helps the sound waves travel between the machine and your body.

The ultrasound machine has a hand-held instrument called a transducer. It looks like a microphone or wand. The transducer is pushed against your skin where the gel was applied. The transducer sends sound waves into your body. The waves bounce off your internal organs and echo back to the transducer. The echoes are changed into images that are shown on a screen. The doctor examines the images on the screen. Photographs of the images may be taken.

You may be asked to change positions or hold your breath during the exam.

Ultrasound of Abdomen
Nucleus factsheet image
Copyright © Nucleus Medical Media, Inc.

After Test

The gel will be cleaned from your body. You will be able to return to normal activities in most cases.

How Long Will It Take?

About 30 minutes to 1 hour

Will It Hurt?

No

Results

A radiologist will examine the images after the test. Your doctor will let you know the results and talk to you about treatment.

Call Your Doctor

After the test, call your doctor if symptoms become worse.

In case of an emergency, call for medical help right away.

Revisions

All EBSCO Publishing proprietary, consumer health and medical information found on this site is accredited by URAC. URAC's Health Web Site Accreditation Program requires compliance with 53 rigorous standards of quality and accountability, verified by independent audits. To send comments or feedback to our Editorial Team regarding the content please email us at HLEditorialTeam@ebscohost.com.

This content is reviewed regularly and is updated when new and relevant evidence is made available. This information is neither intended nor implied to be a substitute for professional medical advice. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with questions regarding a medical condition.

Editorial Policy | Privacy Policy | Terms and Conditions | Support
Copyright © 2008 EBSCO Publishing. All rights reserved.

Laugh and let humor enter your life. One of the easiest ways of being healthier is to find a way to relax more and have more fun.