title: Whole-brain CT digital subtraction angiography of cerebral dural arteriovenous fistula using 320-detector row CT.
abstract: BACKGROUND
  The purpose of this study was to evaluate the usefulness of CT digital subtraction angiography (CTDSA) by using 320-detector row CT in the diagnosis and classification of cerebral dural arteriovenous fistula (dAVF) and comparing it with DSA as the standard reference.
  
  
  METHODS
  A total of 29 CTDSA/DSA from 25 patients with dAVF were retrospectively evaluated by two neuroradiologists. The presence, Cognard classification, and feeding arteries of dAVFs on CTDSA were assessed according to DSA.
  
  
  RESULTS
  DSA depicted 33 dAVFs in 28 cases. By consensus reading, CTDSA correctly detected 32 dAVFs in 27 cases and properly graded 31 lesions. The intermodality agreement for the presence and classification of dAVFs was excellent (kappa = 0.955 and 0.921, respectively). CTDSA detected 77 of 109 feeding arteries (70.6%) in 25 cases. The intermodality agreement for the feeding arteries was good (kappa = 0.713).
  
  
  CONCLUSIONS
  Although CTDSA is limited in temporal and spatial resolution in comparison with DSA, it is an effective non-invasive tool for the detection and classification of dAVF.
authors.affiliation: Department of Diagnostic Radiology, School of Medicine, Keio University, 35 Shinanomachi Shinjuku, Tokyo, Japan. hfujiwar@rad.med.keio.ac.jp
authors.forename: Hirokazu
authors.initials: H
authors.lastname: Fujiwara
authors.forename: Suketaka
authors.initials: S
authors.lastname: Momoshima
authors.forename: Takenori
authors.initials: T
authors.lastname: Akiyama
authors.forename: Sachio
authors.initials: S
authors.lastname: Kuribayashi
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D015901:Angiography, Digital Subtraction / Q000379:methods*; D001921:Brain / Q000000981:diagnostic imaging*; D020785:Central Nervous System Vascular Malformations / Q000000981:diagnostic imaging*; D002533:Cerebral Angiography / Q000379:methods*; D005260:Female; D006801:Humans; D002538:Intracranial Arteriovenous Malformations / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D015588:Observer Variation; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014057:Tomography, X-Ray Computed / Q000379:methods*