[Comparative study of endoluminal ultrasonography and spiral computed tomography in preoperative staging of rectal carcinoma].
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.
Ju
Hai-xing
HX
Department of Colorectal Surgery, Zhejiang Cancer Hospital, Hangzhou 310022, China. juhaixing@126.com
Li
De-chuan
DC
Xu
Dong
D
Qian
Chao-wen
CW
Tian
Pei-lin
PL
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