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.
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The gel will be cleaned from your body. You will be able to return to normal activities in most cases.
About 30 minutes to 1 hour
A radiologist will examine the images after the test. Your doctor will let you know the results and talk to you about treatment.
American Institute of Ultrasound in Medicine
Radiology Info—Radiologic Society of North America
The College of Family Physicians of Canada
General ultrasound imaging. Radiologic Society of North America Radiology Info website. Available at: http://www.radiologyinfo.org/en/info.cfm?PG=genus. Updated June 23, 2014. Accessed March 2, 2016.
Radiation-emitting products. US Food and Drug Administration website. Available at: http://www.fda.gov/Radiation-EmittingProducts/RadiationEmittingProductsandProcedures/MedicalImaging/ucm115357.htm. Updated December 16, 2014. Accessed March 2, 2016.
Last reviewed March 2016 by Michael J. Fucci, DO, FACC
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.
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