title: Variation of hepatic artery by 3-D reconstruction MDCT scan of liver in Siriraj Hospital.
abstract: OBJECTIVE
  To evaluate the prevalence of hepatic arterial variant in Siriraj Hospital.
  
  
  METHODS
  A retrospective study that was approved by ethic committee of Siriraj Hospital. Between August and October 2006, 200 studies of abdominal MDCT were randomly sampled and multi-planar reformatted by using program Vitrea 2. Both axial, two- and three-dimensional images were evaluated for possible variants of hepatic vasculature. The results were classified by Michel classification and analyzed in percentage. Moreover, a small group (23 studies) that had digital subtraction angiography (DSA) was compared to know accuracy and Intercorelation between the two reviewers (Kappa value).
  
  
  RESULTS
  Of 200 studies, 83.5% had type I, 1% type II, 6% type III, 0.5% type IV, 3.5% type V, 1% type VI, 0.5% type VIII, 1% type IX, 0.5% Type X, and 2.5% others type. Accuracy of MDCT for detection hepatic artery variation as compared with DSA was 78.3%.
  
  
  CONCLUSIONS
  All variation is about 16%. Type III is most common variation of patients in Siriraj Hospital.
authors.affiliation: Department of Radiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok Noi, Bangkok 10700, Thailand.
authors.forename: Krisdee
authors.initials: K
authors.lastname: Prabhasavat
authors.forename: Chatchai
authors.initials: C
authors.lastname: Homgade
mesh_terms: D015901:Angiography, Digital Subtraction / Q000295:instrumentation / Q000379:methods; D005260:Female; D006499:Hepatic Artery / Q000033:anatomy & histology*; D006801:Humans; D007089:Image Enhancement / Q000295:instrumentation*; D021621:Imaging, Three-Dimensional / Q000295:instrumentation*; D008099:Liver / Q000033:anatomy & histology* / Q000098:blood supply; D008297:Male; D015995:Prevalence; D012016:Reference Values; D012189:Retrospective Studies; D012680:Sensitivity and Specificity; D012984:Software; D013785:Thailand