title: [Comparative study of endoluminal ultrasonography and spiral computed tomography in preoperative staging of rectal carcinoma].
abstract: OBJECTIVE
  To compare the efficacy of endoluminal ultrasonography (EUS) and spiral computed tomography (SCT) in preoperative staging of rectal carcinoma.
  
  
  METHODS
  Both EUS and SCT were performed prior to surgery in 68 patients with rectal carcinoma. After radical surgery, the preoperative findings were compared with histologic findings of the operative specimens, and the efficacy of EUS and SCT in staging the rectal carcinoma were evaluated.
  
  
  RESULTS
  For T stage, EUS accuracy was 86.8%, while SCT was 70.6%. The difference was significant (P<0.05). For N stage, EUS accuracy was 67.6% and SCT was 63.2%. The difference was not significant (P>0.05).
  
  
  CONCLUSIONS
  EUS is superior to SCT for the judgement of tumor infiltration depth, but neither is able to provide satisfactory assessment of lymph node metastases.
authors.affiliation: Department of Colorectal Surgery, Zhejiang Cancer Hospital, Hangzhou 310022, China. juhaixing@126.com
authors.forename: Hai-xing
authors.initials: HX
authors.lastname: Ju
authors.forename: De-chuan
authors.initials: DC
authors.lastname: Li
authors.forename: Dong
authors.initials: D
authors.lastname: Xu
authors.forename: Chao-wen
authors.initials: CW
authors.lastname: Qian
authors.forename: Pei-lin
authors.initials: PL
authors.lastname: Tian
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging / Q000379:methods*; D012004:Rectal Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D036542:Tomography, Spiral Computed; D018084:Ultrasonography, Interventional