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Venous Duplex Scan for Venous Insufficiency

Venous Insufficiency is a potentially serious condition in which the valves in veins do not function correctly, and blood flows backwards down the leg instead of toward the heart. This is the cause of varicose veins. A Venous Duplex Scan is an ultrasound test that can show if the valves in veins do not function normally. The Vascular Lab specializes in this type of examination, but many vascular labs do not fully evaluate veins for this abnormality.

In this examination, gel is applied to the skin of the leg. A transducer (a handheld device) is then used to scan the veins. The transducer sends high-frequency sound waves into the leg, and images of blood flow are obtained which show the direction of blood flow in the veins. This information is used to identify venous insufficiency (reflux). Ultrasound is then used to direct appropriate treatment of varicose veins.




This scan demonstrates reflux (backward flow) in a deep vein in the groin




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