title: Spinal Dural Arteriovenous Fistula: Imaging Features and Its Mimics.
abstract: Spinal dural arteriovenous fistula (SDAVF) is the most common spinal vascular malformation, however it is still rare and underdiagnosed. Magnetic resonance imaging findings such as spinal cord edema and dilated and tortuous perimedullary veins play a pivotal role in the confirmation of the diagnosis. However, spinal angiography remains the gold standard in the diagnosis of SDAVF. Classic angiographic findings of SDAVF are early filling of radicular veins, delayed venous return, and an extensive network of dilated perimedullary venous plexus. A series of angiograms of SDAVF at different locations along the spinal column, and mimics of serpentine perimedullary venous plexus on MR images, are demonstrated. Thorough knowledge of SDAVF aids correct diagnosis and prevents irreversible complications.
authors.affiliation: Department of Radiology, Taipei Medical University-Shuang Ho Hospital, New Taipei City 23561, Taiwan. ; Department of Radiology, School of Medicine, College of Medicine, Taipei Medical University, New Taipei City 23561, Taiwan.
authors.forename: Ying
authors.initials: Y
authors.lastname: Jeng
authors.affiliation: Department of Radiology, Taipei Medical University-Shuang Ho Hospital, New Taipei City 23561, Taiwan.
authors.forename: David Yen-Ting
authors.initials: DY
authors.lastname: Chen
authors.affiliation: Department of Radiology, Taipei Medical University-Shuang Ho Hospital, New Taipei City 23561, Taiwan.
authors.forename: Hui-Ling
authors.initials: HL
authors.lastname: Hsu
authors.affiliation: Department of Radiology, Taipei Medical University-Shuang Ho Hospital, New Taipei City 23561, Taiwan.
authors.forename: Yen-Lin
authors.initials: YL
authors.lastname: Huang
authors.affiliation: Department of Radiology, Taipei Medical University-Shuang Ho Hospital, New Taipei City 23561, Taiwan.
authors.forename: Chi-Jen
authors.initials: CJ
authors.lastname: Chen
authors.affiliation: Department of Radiology, Taipei Medical University-Shuang Ho Hospital, New Taipei City 23561, Taiwan.
authors.forename: Ying-Chi
authors.initials: YC
authors.lastname: Tseng
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D020785:Central Nervous System Vascular Malformations / Q000175:diagnosis* / Q000453:epidemiology / Q000209:etiology; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D011859:Radiography; D013118:Spinal Cord Diseases / Q000175:diagnosis; D013131:Spine / Q000000981:diagnostic imaging
keywords: Central nervous system vascular malformations; Spinal cord diseases; Spine