title: [Clinical application of mutidetector computer tomography in diagnosing T staging of gastric carcinoma].
abstract: OBJECTIVE
  To evaluate the significance of plain and dual-phasic enhanced MDCT in the diagnosis of preoperative T staging of gastric carcinoma.
  
  
  METHODS
  MDCT examinations were performed on 57 patients with histopathologically confirmed gastric carcinoma. The scan protocol included plain scanning, arterial phase and portal phase scanning. The MPR image was reconstructed.
  
  
  RESULTS
  The MDCT had 78.94% of accuracy for diagnosing T stage, and 94.74%, 94.74%, 84.21% and 87.72% accuracy for T1, T2, T3, and T4, respectively. The sensitivity of the diagnosis were 25.00%, 80.00%, 78.26% and 88.00% for T1, T2, T3, and T4, respectively. The specificity of the diagnosis were 100%, 96.15%, 88.24% and 87.50% for T1 , T2, T3, and T4, respectively.
  
  
  CONCLUSIONS
  The plain scan and dual phase enhanced scans of MDCT, especially the thin slice and MPR reconstruction with proper windows technique, have clinical significance for diagnosing T staging of gastric carcinoma.
authors.affiliation: Department of Radiology, West China Hospital, Sichuan University, Chengdu 610041, China.
authors.forename: Juan
authors.initials: J
authors.lastname: Huang
authors.forename: Wei-Xia
authors.initials: WX
authors.lastname: Chen
authors.forename: Xiao-Peng
authors.initials: XP
authors.lastname: Wang
authors.forename: Jin
authors.initials: J
authors.lastname: Yao
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009361:Neoplasm Invasiveness; D009367:Neoplasm Staging / Q000379:methods*; D011300:Preoperative Care; D012680:Sensitivity and Specificity; D013274:Stomach Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology*; D036542:Tomography, Spiral Computed