title: [Computerized liver volume for evaluation and following liver regeneration after partial hepatectomy in swines].
abstract: OBJECTIVE
  To analyze the hepatic volume by computerized tomography using a semiautomatic computerized program of acquisition and processing digitalized images, to follow the hepatic regeneration in swine after partial hepatectomy.
  
  
  METHODS
  Twelve female young Landrace swine were separated in three groups according to the observation time between hepatectomy and sacrifice: G5 (5 days), G10 (10 days) and G15 (15 days). All animals were submitted to partial hepatectomy of the right lobe and followed until sacrifice, when regenerated liver was ressected. The surgical piece and the regenerated liver were weighted and submitted to tomographic volume evaluation by the software HEPATO, taking place acquisition and analysis of the tomography images in a semiautomatic way. Statistical analysis used the non-parametric Kruskal-Wallis and Wilcoxon tests.
  
  
  RESULTS
  Medium weigh of regenerated liver was G5=434,5 g, G10=449,25g and G15=486,5 g (p=0,592). The regeneration index obtained using liver weight was 83,58% (G5), 94,95% (G10) and 101,63% (G15) (p=0,197). Medium volume of regenerated liver was G5=403,58 cm(2), G10=450,88 cm(2) and G15=458,93 cm(2) (p=0,941). Liver regeneration index obtained using liver volume was 74,25% (G5), 88% (G10) and 100% (G15) (p=0,326). Liver regeneration index was not different when assessed using liver weigh or liver volume.
  
  
  CONCLUSIONS
  The liver volumetric evaluation by computerized tomography using a computerized semiautomatic program of digitalized images acquisition and processing is a trustworthy method for evaluation and following the liver regeneration in swine after partial hepatectomy.
authors.affiliation: Programa de Pós-Graduação, Universidade Federal do Paraná, PR, BR.
authors.forename: Fábio Augusto de
authors.initials: FA
authors.lastname: Carvalho
authors.forename: Henry
authors.initials: H
authors.lastname: Joyeux
authors.forename: Júlio Cezar U
authors.initials: JC
authors.lastname: Coelho
authors.forename: Bernard
authors.initials: B
authors.lastname: Sain-Aubert
authors.forename: Philipe
authors.initials: P
authors.lastname: Rouanet
authors.forename: Jorge Eduardo Fouto
authors.initials: JE
authors.lastname: Matias
mesh_terms: D000818:Animals; D005260:Female; D006498:Hepatectomy / Q000379:methods; D008099:Liver / Q000033:anatomy & histology* / Q000000981:diagnostic imaging*; D008115:Liver Regeneration; D009929:Organ Size; D013552:Swine; D014057:Tomography, X-Ray Computed