title: Identification of the segmental artery feeding the anterior spinal artery: correlation between helical CT and angiography.
abstract: OBJECTIVE
  We investigated whether identification of the segmental artery feeding the anterior spinal artery (ASA) is possible by single-slice helical CT.
  
  
  METHODS
  Enhanced CT and angiography were performed in 14 patients with retroperitoneal, liver, or bone tumor. A single-slice helical CT scanner with 7 mm collimation and a 1.0 helical pitch was used. Scanning was started 25 to 30 sec after an intravenous injection of 100 ml of contrast medium at a rate of 3.0 ml/sec.
  
  
  RESULTS
  We predicted the segmental artery feeding the ASA in all 14 patients using enhanced CT images. In 12 of the 14 patients, the segmental artery feeding the ASA was angiographically identified. In 7 of these 12 patients, the level of the segmental artery feeding the ASA identified on segmental arteriogram was the same level as that predicted by enhanced CT. In the remaining 5 patients, the level of the segmental artery feeding the ASA identified on segmental arteriogram was one level higher or lower than the predicted spinal level.
  
  
  CONCLUSIONS
  We could identify the segmental artery feeding the ASA by detailed examination and interpretation of single-slice helical CT images.
authors: Department of Radiology, Yokohama City University School of Medicine, Japan.
authors: Jun-Ichi
authors: J
authors: Nishimura
authors: Jin
authors: J
authors: Lee
authors: Shigeomi
authors: S
authors: Koike
authors: Hiroaki
authors: H
authors: Kurihara
authors: Yukihiko
authors: Y
authors: Ozawa
authors: Aya
authors: A
authors: Abe
authors: Kazuya
authors: K
authors: Shizukuishi
authors: Tetsu
authors: T
authors: Niwa
authors: Sho
authors: S
authors: Matsubara
authors: Tomio
authors: T
authors: Inoue
mesh_terms: D000328:Adult; D000368:Aged; D000792:Angiography; D003287:Contrast Media / Q000008:administration & dosage; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D013131:Spine / Q000098:blood supply*; D014057:Tomography, X-Ray Computed / Q000379:methods*
chemical_list: D003287:Contrast Media