title: Reliability of MDCT, with MPR and hydro-CT technique, in resectability and lymphnode staging of gastric cancer.
abstract: OBJECTIVE
  The aim of this study was to evaluate the reliability of thin-slice hydro-multidetector row computed tomography (MDCT) in assessing resectability and lymph node staging of gastric cancer.
  
  
  METHODS
  Sixty-one patients (37 males, 24 females; mean age 61 years) with gastric cancer, and whose surgery was planned, underwent preoperative abdominopelvic hydro-MDCT at slice thickness of 5 mm. We evaluated the tumor stage, depth of tumor invasion into the gastric wall, metastasis of lymph node, and presence/absence of distant metastases on the CT images produced with multiplanar reconstruction (MPR) and hydro-CT technique. The results were compared with pathological and surgical findings. Diagnostic accuracy was also analyzed.
  
  
  RESULTS
  Of 61 patients with gastric cancer, 6 (14%) were inoperable, 45 (68%) were advanced stage, and 10 (16%) were early stage gastric cancer patients. The detection rate of the primary tumor was 97% for MDCT; the overall accuracy of MDCT in the determination of the depth of invasion and serosal involvement when compared with pathological staging were 84% and 95%, respectively; the overall accuracy rate in lymph node staging was 73.5%.
  
  
  CONCLUSIONS
  MDCT can improve the accuracy of preoperative T and N staging of gastric cancer and will contribute to treatment strategies for patients with advanced stage gastric cancer.
authors.affiliation: Department of Surgery Antalya Training and Research Hospital Antalya, Turkey - drrojbin@hotmail.com.
authors.forename: R
authors.initials: R
authors.lastname: Karakoyun
authors.forename: E
authors.initials: E
authors.lastname: Demirci
authors.forename: M
authors.initials: M
authors.lastname: Karakoyun
authors.forename: B
authors.initials: B
authors.lastname: Karakaş
authors.forename: U
authors.initials: U
authors.lastname: Gündüz
authors.forename: Z
authors.initials: Z
authors.lastname: Sener
authors.forename: S
authors.initials: S
authors.lastname: Gülenay
authors.forename: B
authors.initials: B
authors.lastname: Erol
authors.forename: E
authors.initials: E
authors.lastname: Sağtaş
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001706:Biopsy; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D061330:Multidetector Computed Tomography / Q000379:methods; D009367:Neoplasm Staging; D011237:Predictive Value of Tests; D011300:Preoperative Care; D015203:Reproducibility of Results; D012189:Retrospective Studies; D012680:Sensitivity and Specificity; D013274:Stomach Neoplasms / Q000175:diagnosis / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery