Duplex Ultrasonography To Detect The Condition Of Blood Vessels

Duplex Ultrasonography is a form of ultrasound that combines Doppler flow information and conventional imaging information to produce images that helps to differentiate between the body's soft tissues and its fluid-filled structures. While performing duplex ultrasound, two forms of ultrasound are used. The conventional method shows the structure of the blood vessels and Doppler ultrasound gives information about the movement of red blood cells through the cells. These images can be color coded to detect where the blood flow is severely blocked.

Duplex Ultrasound Incorporates Two Elements:

B-mode, pulsed-doppler display: To visualize the blood flow within a vessel
Color-doppler display: To visualize the structure and hemodynamics within a vessel

Duplex ultrasound also shows how blood flows through your vessels and evaluates the speed of the blood flow. This technique is useful to estimate the diameter of a blood vessel and to check if there is any blockage in the blood vessel.

A duplex ultrasound helps to diagnose and examine conditions that affect the blood vessels. These conditions include the following:

Thrombosis (blood clots)
Blockages from atherosclerosis (hardening of the arteries)
Thrombophlebitis (an inflammation of the blood vessels)
Trauma to an artery or vein
Raynaud's phenomenon (a spasm of small blood vessels in the fingers)
Increase in the thickness of the blood vessel lining
Carotid occlusive disease
Aneurysms in your abdomen or extremities

This technique is usually done prior to any invasive testing to provide important information that may help in therapeutic decisions.

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