title: [Venous Doppler color echography: importance and inconveniences].
abstract: Color Doppler is a technique which performs a real-time opacification of the vascular system with blue indicating reverse flow and red indicating forward flow (directional color coding). In venous pathology, the use of color Doppler improves significantly the anatomical evaluation of the inferior vena cava, the iliac vein, the deep femoral vein, and the sural system. Color Doppler facilitates the study of deep venous thrombosis (providing useful information to differentiate ancient from most recent thrombus) and also the study of post-thrombotic conditions (assessment of reverse flow, repermeation phenomena). Finally, color Doppler produces a better insight for the study of varicose veins, especially with regard to mapping, identification of communicante veins, and study of the external saphenous vein.
authors.affiliation: Unité d'Explorations Vasculaires: C.H.U., Nimes.
authors.forename: J P
authors.initials: JP
authors.lastname: Laroche
authors.forename: M
authors.initials: M
authors.lastname: Dauzat
authors.forename: G
authors.initials: G
authors.lastname: Muller
authors.forename: C
authors.initials: C
authors.lastname: Janbon
mesh_terms: D001783:Blood Flow Velocity; D003116:Color; D003937:Diagnosis, Differential; D006801:Humans; D015203:Reproducibility of Results; D013924:Thrombophlebitis / Q000000981:diagnostic imaging* / Q000473:pathology / Q000503:physiopathology; D013997:Time Factors; D014463:Ultrasonography / Q000295:instrumentation / Q000379:methods; D014648:Varicose Veins / Q000000981:diagnostic imaging* / Q000473:pathology / Q000503:physiopathology
vernacular_title: Echo-Doppler couleur, veineux: interêts et inconvénients.