Directional flow detection for localizing venous valvular incompetency.
D000328:Adult; D001783:Blood Flow Velocity; D005260:Female; D006801:Humans; D007866:Leg / Q000098:blood supply*; D007871:Leg Ulcer / Q000175:diagnosis; D008297:Male; D008722:Methods; D008875:Middle Aged; D014463:Ultrasonography; D014652:Vascular Diseases / Q000175:diagnosis* / Q000601:surgery; D014680:Veins