腔内超声与螺旋CT对直肠癌术前分期与术后病理对比的研究

摘要

Objective To compare the efficacy of transrectal ultrasonography(TRUS)and spiral computed tomography(SCT)in preoperative staging of rectal carcinoma contrasted with the postoperative pathologic findings.Methods Both TRUS and SCT were performed prior to surgery in 92 patients with rectal carcinoma.After radical operation,the preoperative findings were compared with the histological findings,and the the efficacy of TRUS and SCT in staging the rectal carcinoma were evaluated.Results The accuracy of TRUS for T stage and N stage was 87.0% and 64.1% respectively,while the accuracy of SCT was 68.5% and 66.3%.Conclusions TRUS is superior to SCT for the judgment of tumor infiltration depth,TRUS may become the first choice in preoperative staging of rectal carcinoma.But neither is able to provide satisfaction assessment for lymph node metastases.When both methods are used together,it would be better.%目的 通过与手术后病理分期对照,比较直肠腔内超声(TRUS)和螺旋CT(SCT)对直肠癌术前分期的价值.方法 对92例确诊为直肠癌的患者术前行TRUS和盆腔SCT检查,确立超声、CT的T分期和N分期.并与手术后病理分期对照.结果 TRUS判断T分期总的准确率为87.0%(80/92),评价N分期的准确率为64.1%(59/92);SCT判断T分期总的准确率为68.5%(63/92),评价N分期的准确率为66.3%(61/92).结论 在判断直肠肿瘤浸润深度及T分期方面,TRUS明显优于SCT,TRUS可以作为直肠癌术前分期的首选方法,而TRUS和SCT两者对淋巴结转移的判断及N分期方面没有明显差异,并均存在一定的局限性,但将两者结合起来,往往可以起到互相补充的作用.