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Chinese Journal of Digestion ; (12): 731-734, 2012.
Artigo em Chinês | WPRIM | ID: wpr-421021

RESUMO

Objective To evaluate the accuracy of endoscopic ultrasonography (EUS) in preoperative TNM staging of gastric cancer.Methods EUS and abdominal helical computed tomography (HCT) were performed one week before the surgery in 126 gastric cancer patients who would receive surgery to determine the depth of tumor invasion (T),lymph node metastasis (N) and distant metastasis (M) stage and which were also compared with pathologic TNM stage after surgery to evaluate the accuracy of EUS in TNM staging.Pairing x2 test was performed for data analysis.Results Compared with pathologic TNM stage after surgery,the accuracy of EUS in T1,T2,T3 and T4 staging of gastric cancer were 84.6%,14/18,82.0 % and 85.7% respectively.The accuracy of EUSin N0,N1,N2 and N3 staging of gastric cancer were 74.2%,75.0%,57.9% and 5/17 respectively.The accuracy of HCT in N0,N1,N2 and N3 staging of gastric cancer were 80.6%,75.0%,73.7% and 12/17 respectively.The accuracy of EUS was similar to HCT in N0 and N1 stage.For N2 and N3 stage,HCT was obviously better than EUS (x2 =4.89,P=0.027; x2 =13.88,P<0.01).The accuracy of EUS and HCT in M1 stage of gastric cancer were 36.4% and 95.5%respectively,HCT was better than EUS in M1 determination (x2 =7.90,P=0.001).Conclusions The clinical application value of EUS in the preoperative gastric cancer T staging was high,however the accuracy in determining lymph node metastasis N2 and N3 staging and distant metastasis M staging should be improved.In order to acquire more accurate preoperative TNM stage to guide the treatment selection,the combination with HCT examination is necessary.

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