What is the role of color-flow ultrasound imaging in the diagnosis of varicose veins and spider veins (telangiectasia)?

Updated: Sep 25, 2020
  • Author: Robert Weiss, MD; Chief Editor: William D James, MD  more...
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Color-flow ultrasound imaging has become accepted as the standard for evaluation of venous anatomy and gross physiology. For many patients, color-flow imaging alone may be sufficient. For complex cases, however, physiologic tests of venous function may reveal more information. Physiologic parameters most often measured are the venous refilling time (VRT), the maximum venous outflow (MVO), and the calf muscle pump ejection fraction (MPEF). The availability of small, relatively inexpensive Duplex ultrasound imaging has reduced the need for physiologic testing.

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