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Vascular Ultrasounds is a specific noninvasive method used to monitor and observe the blood flow in veins and arteries in the body. This type of ultrasound can be used to observe blood vessels located in the arms, legs, abdomen, neck, and arteriovenous fistulas and grafts. This particular test is noninvasive and does not require any IV catheters or contrast.

An ultrasound works by way of sound waves through the body’s tissues. For a vascular ultrasound, the sound waves detect the blood moving in the blood stream and project this information back to the ultrasound machine. The sound waves can detect the speed of the blood within a blood vessel and the diameter of blood vessels. When a blockage is present in a blood vessel, the speed of the blood flow increases; a vascular ultrasound would detect the increase in speed and report the narrowed blood vessel.

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