title: Arteriovenous fistulas in the neck: diagnosis with color Doppler sonography.
abstract: We report the use of color Doppler imaging in the diagnosis of four arteriovenous fistulas in the neck region: two had a traumatic origin and two were spontaneous. A perivascular color artifact was the most common initial finding on color images to indicate the underlying abnormality. In all four cases, a low-resistance flow with high systolic and diastolic velocities was observed in the feeding artery. Although angiography remains essential before therapeutic embolization, color Doppler sonography may be an important tool for screening and follow-up of cervical arteriovenous fistulas.
authors.affiliation: Department of Radiology, University Hospital of Cruces, Vizcaya, Spain.
authors.forename: A
authors.initials: A
authors.lastname: López-Medina
authors.forename: I
authors.initials: I
authors.lastname: López-Vidaur
authors.forename: R
authors.initials: R
authors.lastname: Villoria
authors.forename: G
authors.initials: G
authors.lastname: Fernández-Cantón
authors.forename: J I
authors.initials: JI
authors.lastname: Martín-Gómez
mesh_terms: D000792:Angiography; D001164:Arteriovenous Fistula / Q000000981:diagnostic imaging*; D001783:Blood Flow Velocity; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009333:Neck / Q000098:blood supply*; D012189:Retrospective Studies; D018615:Ultrasonography, Doppler, Color