title: Volume change of segments II and III of the liver after gastrectomy in patients with gastric cancer.
abstract: OBJECTIVE
  We aimed to evaluate the relationship between gastrectomy and the volume of liver segments II and III in patients with gastric cancer.
  
  
  METHODS
  Computed tomography images of 54 patients who underwent curative gastrectomy for gastric adenocarcinoma were retrospectively evaluated by two blinded observers. Volumes of the total liver and segments II and III were measured. The difference between preoperative and postoperative volume measurements was compared.
  
  
  RESULTS
  Total liver volumes measured by both observers in the preoperative and postoperative scans were similar (P > 0.05). High correlation was found between both observers (preoperative r=0.99; postoperative r=0.98). Total liver volumes showed a mean reduction of 13.4% after gastrectomy (P = 0.977). The mean volume of segments II and III showed similar decrease in measurements of both observers (38.4% vs. 36.4%, P = 0.363); the correlation between the observers were high (preoperative r=0.97, P < 0.001; postoperative r=0.99, P < 0.001). Volume decrease in the rest of the liver was not different between the observers (8.2% vs. 9.1%, P = 0.388). Time had poor correlation with volume change of segments II and III and the total liver for each observer (observer 1, rseg2/3=0.32, rtotal=0.13; observer 2, rseg2/3=0.37, rtotal=0.16).
  
  
  CONCLUSIONS
  Segments II and III of the liver showed significant atrophy compared with the rest of the liver and the total liver after gastrectomy. Volume reduction had poor correlation with time.
authors.affiliation: Department of Radiology, Dokuz Eylül University School of Medicine, İzmir, Turkey. canozutemiz@gmail.com.
authors.forename: Can
authors.initials: C
authors.lastname: Ozutemiz
authors.forename: Funda
authors.initials: F
authors.lastname: Obuz
authors.forename: Abdullah
authors.initials: A
authors.lastname: Taylan
authors.forename: Koray
authors.initials: K
authors.lastname: Atila
authors.forename: Seymen
authors.initials: S
authors.lastname: Bora
authors.forename: Hulya
authors.initials: H
authors.lastname: Ellidokuz
mesh_terms: D000368:Aged; D001284:Atrophy / Q000000981:diagnostic imaging / Q000473:pathology; D005260:Female; D005743:Gastrectomy / Q000009:adverse effects / Q000379:methods*; D006801:Humans; D008099:Liver / Q000033:anatomy & histology / Q000000981:diagnostic imaging* / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D015588:Observer Variation; D011183:Postoperative Complications / Q000000981:diagnostic imaging; D012189:Retrospective Studies; D013274:Stomach Neoplasms / Q000473:pathology / Q000601:surgery*; D014057:Tomography, X-Ray Computed / Q000379:methods