title: Computed Tomography Imaging Artifact Simulating Type A Aortic Dissection.
abstract: Contrast-enhanced computed tomography (CT) is an effective tool for assessment of thoracic aortic disease in the modern era. Here, we describe a case of Type A aortic dissection incidentally detected by CT in a 63-year old man. Upon more precise imaging with electrocardiography (ECG)-gated CT, the dissection vanished, revealing it to be an aortic motion artifact. This report highlights the importance of motion artifacts mimicking a dissection flap. CT imaging gated with ECG can distinguish a dissection flap from an artifact.
authors.affiliation: Aortic Institute at Yale-New Haven Hospital, Yale University School of Medicine, New Haven, Connecticut, USA.
authors.forename: Alan S
authors.initials: AS
authors.lastname: Chou
authors.affiliation: Aortic Institute at Yale-New Haven Hospital, Yale University School of Medicine, New Haven, Connecticut, USA; Department of Surgical Diseases # 2, Kazan State Medical University, Kazan, Russia.
authors.forename: Bulat A
authors.initials: BA
authors.lastname: Ziganshin
authors.affiliation: Aortic Institute at Yale-New Haven Hospital, Yale University School of Medicine, New Haven, Connecticut, USA.
authors.forename: John A
authors.initials: JA
authors.lastname: Elefteriades
keywords: Imaging artifact; Type A aortic dissection