title: Demonstration of aberrant hepatic and gastric arteries with helical CT.
abstract: OBJECTIVE
  To assess the demonstration of aberrant hepatic and gastric arteries with routine axial biphasic helical CT.
  
  
  METHODS
  The arterial-phase images of biphasic helical CT were reviewed to evaluate aberrant hepatic and gastric arteries in 166 patients with hepatocellular carcinomas. Biphasic (30 and 70 seconds) helical CT was performed with 10 mm of collimation. The results were compared with angiography performed within 2 weeks after this CT.
  
  
  RESULTS
  Aberrant hepatic arteries were identified by CT in 38 patients and by angiography in 43 patients (38/43, 88%). Aberrant left gastric arteries were identified in three patients by angiography and by CT (3/3). Careful observation of the fissure for the ligamentum venosum and portacaval space was useful for the detection of these arteries.
  
  
  CONCLUSIONS
  Aberrant hepatic and gastric arteries were well demonstrated with routine axial biphasic helical CT. This may be useful for the surgical and transcatheter management of hepatic tumors.
authors.affiliation: Department of Radiology, Showa University School of Medicine, Tokyo, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Ohgiya
authors.forename: T
authors.initials: T
authors.lastname: Gokan
authors.forename: H
authors.initials: H
authors.lastname: Munechika
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000792:Angiography; D006528:Carcinoma, Hepatocellular / Q000098:blood supply / Q000000981:diagnostic imaging; D002445:Celiac Artery / Q000002:abnormalities* / Q000000981:diagnostic imaging*; D003287:Contrast Media / Q000008:administration & dosage; D005260:Female; D006499:Hepatic Artery / Q000002:abnormalities* / Q000000981:diagnostic imaging*; D006801:Humans; D007275:Injections, Intravenous; D007472:Iohexol / Q000008:administration & dosage; D008113:Liver Neoplasms / Q000098:blood supply / Q000000981:diagnostic imaging; D008297:Male; D008875:Middle Aged; D015203:Reproducibility of Results; D012189:Retrospective Studies; D012680:Sensitivity and Specificity; D013270:Stomach / Q000098:blood supply*; D014057:Tomography, X-Ray Computed
chemical_list: D003287:Contrast Media; D007472:Iohexol