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.
Doppler ultrasound is used to:
Your doctor may do the following:
In some cases your doctor may instruct you to:
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.
The gel will be cleaned from your body. You will be able to return to normal activities in most cases.
American Institute of Ultrasound in Medicine
RadiologyInfo.org—Radiologic Society of North America
The College of Family Physicians of Canada
Doppler. Radiological Society of North America Electronic Journal website. Available at: http://ej.rsna.org/ej3/0079-98.fin/doppler.htm. Accessed November 19, 2012.
General ultrasound imaging. Radiologic Society of North America Radiology Info website. Available at: http://www.radiologyinfo.org/en/info.cfm?PG=genus . Updated July 2, 2012. Accessed November 19, 2012.
Radiation-emitting products. US Food and Drug Administration website. Available at: http://www.fda.gov/Radiation-EmittingProducts/RadiationEmittingProductsandProcedures/MedicalImaging/ucm115357.htm. Updated June 6, 2012. Accessed November 19, 2012.
Last reviewed March 2014 by Michael J. Fucci, DO
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.