title: Beyond the Bifurcation: There Is More to Cerebrovascular Ultrasound Than Internal Carotid Artery Stenosis!
abstract: Carotid ultrasonography (US) is most commonly performed to identify potential areas of flow-limiting stenosis in the internal carotid artery. Identification of stenosis and unstable plaque is important because these entities are leading predictors of stroke, the fourth most common cause of death in the United States. However, US can detect other important but less common vascular pathologies if proper techniques and nuances of these entities are understood.In this article, we discuss the US appearance of abnormalities involving the carotid, vertebral, subclavian, and innominate arteries as well as the key clinical components of each diagnosis. These include congenital variants, dissection, stenosis, and vasculopathy. In addition, correlation of US findings with both magnetic resonance imaging and computed tomography more comprehensively demonstrates the complementary nature of these imaging modalities.
authors.affiliation: University of Southern California Keck School of Medicine.
authors.forename: Corinne
authors.initials: C
authors.lastname: Deurdulian
authors.forename: Neelmini
authors.initials: N
authors.lastname: Emmanuel
authors.forename: Hisham
authors.initials: H
authors.lastname: Tchelepi
authors.forename: Edward G
authors.initials: EG
authors.lastname: Grant
authors.forename: Harshawn
authors.initials: H
authors.lastname: Malhi
mesh_terms: D016122:Brachiocephalic Trunk / Q000000981:diagnostic imaging; D001921:Brain / Q000098:blood supply* / Q000000981:diagnostic imaging*; D002343:Carotid Artery, Internal / Q000000981:diagnostic imaging; D016893:Carotid Stenosis; D002561:Cerebrovascular Disorders / Q000000981:diagnostic imaging*; D006801:Humans; D008279:Magnetic Resonance Imaging; D013348:Subclavian Artery / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography / Q000379:methods*; D014711:Vertebral Artery / Q000000981:diagnostic imaging