Duplex ultrasound sonography represents the best method of evaluation of venous reflux in the lower extremities.1 This test is noninvasive, generally acceptable to the patient, and inexpensive.2 It provides direct imaging, localization, and extent of venous reflux with a surprisingly high sensitivity (95%) and specificity (100%).3 Duplex ultrasound findings have also been confirmed with angioscopic observations of incompetent vein valves in advanced chronic venous insufficiency.4 As demonstrated by Yamaki, high peak reflux velocities (>30 cm/s), reflux duration greater than three seconds, and an enlarged valve annulus measured by duplex ultrasonography at the SFJ are closely related to angio-scopically deformed and incompetent terminal valves (Type III and Type IV valves of Hoshino).4

How To Deal With Rosacea and Eczema

How To Deal With Rosacea and Eczema

Rosacea and Eczema are two skin conditions that are fairly commonly found throughout the world. Each of them is characterized by different features, and can be both discomfiting as well as result in undesirable appearance features. In a nutshell, theyre problems that many would want to deal with.

Get My Free Ebook

Post a comment