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What is a Vascular Ultrasound?
Vascular Ultrasound is a non invasive (safe, well tolerated) medical test used to check the arteries and veins in the body. Artery and vein problems include narrow areas, blockages, dilated areas (aneurysms) and abnormal connections.
How is a Vascular Ultrasound Test Performed?
Sound waves image the body’s arteries and veins in two ways. First, the machine sends a sound wave into the body. Then, the machine listens for the return of sound waves. The sound waves reflect off organs and vessels. So, the returning information makes a black and white image. Second, doppler determines the speed and direction of flow. The reflected sound waves off the red cells give speed and direction of the moving blood. A duplex examination, combines ultrasound pictures and doppler to check blood flow. Assignment of color to the moving blood shows direction. Color assignment is set by the technologist. So, color does not show artery versus vein.
What is Vascular Ultrasound Test used for?
Common uses for vascular ultrasound tests include:
Vascular ultrasound of the neck
The sonographer tests the carotid and vertebral arteries for blockages to the brain
Vascular ultrasound of the abdomen
Tests for abnormal dilation of the aorta called an abdominal aortic aneurysm or AAA. Also, abdominal imaging can look for blockages in the vessels feeding the kidneys or bowel
Vascular ultrasound of the Legs
Duplex ultrasound of the leg arteries shows blockages that can cause leg pain with walking.
Duplex ultrasound of the leg veins shows clots in the superficial and deep veins. The other name for deep vein clot is deep vein thrombosis or DVT.
There is no special preparation for vascular ultrasound of the legs or neck. However, you will likely need to hold food and water for 8 hours before the examination of the abdomen. Holding food and water is necessary for abdominal examinations to decrease bowel gas which hides the abdominal vessels and organs.
Who should perform my Vascular Ultrasound?
Skill and training of vascular sonographers can vary. Most importantly, the quality of the examination is necessary to diagnose medical problems. Therefore, look for a seal of accreditation either by the Intersocietal Accreditation Commission (IAC) or the American College of Radiology (ACR). Accreditation of the lab makes certain the person performing your examination has approved credentials.
How Long Does a Vascular Ultrasound Take?
A vascular ultrasound takes thirty to sixty minutes. Occasionally, a complex ultrasound can take up to 90 minutes.