直肠腔内超声结合多排螺旋CT在进展期直肠癌术前分期中的诊断价值

Diagnostic value of ERUS combined with MDCT in preoperative staging of advanced rectal cancer

目的 探讨直肠腔内超（ERUS）结合多排螺旋CT（MDCT）对进展期直肠癌术前分期的诊断价值.方法 对42例直肠癌患者术前行均ERUS和MDCT 检查,作出术前 TN分期,并与手术后病理分期作比较.结果 T 分期,ERUS准确率为76.20%,MDCT准确率为69.05%,ERUS结合MDCT准确率为88.10%,差异有统计学意义（P〈0.05）.N分期,ERUS准确率为64.29%,MDCT准确率为59.52%,ERUS结合 MDCT 准确率为73.81%,比较差异有统计学意义（P〈 0.05）.结论ERUS结合MDCT能提高直肠癌术前分期的准确性.

Objective To investigate the diagnosistic value of endorectal ultrasonography（ERUS）combined with Multidetector-row computed tomography（MDCT）in preoperative staging for advanced rectal cancer.Methods Forty-two patients with rectal cancer were staged by ERUS and MDCT,compared with postoperative pathologic staging.Results For T staging,the accuracy of ERUS was 76.19%,the accuracy of MDCT was69.05%,the accuracy of ERUS combined with MDCT was 88.10% （P〈0.05）.For N staging,the accuracy of ERUS was 64.29%,the accuracy of MDCT was59.52 %,the accuracy of ERUS combined with MDCT was73.81 % （P〈0.05）.Conclusion ERUS combined with MDCT is reliable for preoperative staging of rectal cancer with excel-lent accuracy rates for preoperative TN-staging of rectal cancer.