直肠癌术前分期方法的研究

评估研究直肠癌术前分期方法。方法:对80例直肠癌病人使用术前腔内超声、CT、MRI检查肿瘤病变的深度和直肠指检及术后病理报告在评估病变深度的正确率。结果:直肠腔内超声检查直肠癌浸润深度的正确诊断率为89.3％,对早期直肠癌的正确诊断率为83.3％。CT正确诊断率为86.4％,早期癌的正确诊断率为66.6％。MRI的正确诊断率为90％,早期癌的正确诊断率为83.3％。直肠指检的诊断正确率仅为52.5％。结论:直肠内超声可分辨直肠壁各层的细微结构,可作为直肠癌术前分期的首选诊断方法。

A Study on the Methods of Preoperative Staging of Rectal Cancer.

To compare the value of different methods of preoperative staging in patients with rect-al cancer. Methods: Eighty patients with primary rectal cancer were examined preoperatively with EUS, CT, MRI and digital examination; the results were compared with that of histological examina-tion of the resected specimens. Results: The accuracy rate in gauging the extent of local invasion was 89.3% by EUS, and 83.3% in the detection of early cases; the relative figures were 86.4% and 66.6% by CT scan; and 90% and 83.3% by MRI; the accuracy rate was only 52.5% by digital examination. Conclu-sions: EUS is the method of choice in evaluating the extent of local invasion in patients with rectal cancer.