title: Duplex ultrasound evaluation of patients with chronic venous disease of the lower extremities.
abstract: OBJECTIVE
  This article will describe the elements of performing a thorough venous ultrasound evaluation of the lower extremity in patients with manifestations of chronic venous disorder. The emphasis will be on the evaluation of superficial venous reflux. Only the specific aspects of the evaluation of the deep system pertaining to chronic venous disease will be discussed.
  
  
  CONCLUSIONS
  Duplex ultrasound requires the examiner to solve a puzzle to explain the patient's clinical manifestations. Patients who have been treated with surgery, thermal ablation, or ultrasound-guided sclerotherapy will require duplex ultrasound after treatment to identify complications, gauge the extent of treatment success, and evaluate the cause for any recurrence.
authors.affiliation: 1 Department of Radiology, Weill Medical College of Cornell University and The New York Presbyterian Hospital-Weill Cornell Medical Center, Weill Cornell Vascular, 2315 Broadway, 4th Fl, New York, NY 10024.
authors.forename: Neil M
authors.initials: NM
authors.lastname: Khilnani
mesh_terms: D002908:Chronic Disease; D006801:Humans; D007089:Image Enhancement / Q000379:methods*; D035002:Lower Extremity / Q000098:blood supply* / Q000000981:diagnostic imaging*; D056888:Patient Positioning / Q000379:methods*; D018616:Ultrasonography, Doppler, Duplex / Q000379:methods*; D014652:Vascular Diseases / Q000000981:diagnostic imaging*; D014680:Veins / Q000000981:diagnostic imaging*