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目的:探讨CT及MRI在盆腔结直肠癌术前TN分期中的应用价值。方法:筛选2014年12月至2015年12月我院收治的盆腔结直肠癌患者41例,作为研究对象。所有患者均经手术证实为盆腔结直肠癌,术后组织病理明确TN分期结果,患者术前2~3d接受盆腔CT及MRI平扫及增强扫描,根据影像结果进行术前TN分期,并与术后病理结果进行比较。结果:螺旋CT术前T分期评估正确33例,正确率为80.49%,与病理分期结果比较呈中高度一致;MRI评估T分期正确37例,正确率为90.24%,与病理分期结果比较呈高度一致;41例患者N分期明确淋巴结转移18例,CT、MRI评估准确率、敏感性、特异性比较无显著差异,P>0.05,不具有统计学意义。结论:CT、MRI均可用于盆腔结直肠癌术前的TN分期,但MRI能够更有效的提高结直肠癌术前T分期准确性,可指导临床治疗及手术方案的准确制定。
Objective: To investigate the value of CT and MRI in preoperative TN staging of pelvic colorectal cancer. Methods: Forty-one patients with pelvic colorectal cancer admitted from December 2014 to December 2015 in our hospital were screened out as the research object. All patients were confirmed by surgery for pelvic colorectal cancer, postoperative histological clear TN staging results, patients preoperative 2 ~ 3d pelvic CT and MRI plain scan and enhanced scanning, preoperative TN staging according to imaging results, and with surgery Post-pathological results were compared. Results: The accuracy of preoperative T staging was correctly evaluated in 33 cases (80.49%), which was highly consistent with the pathological staging results. The accuracy of T stage staging in MRI was 37 (accuracy = 90.24%), which was higher than that of pathological staging There was no significant difference in accuracy, sensitivity and specificity between CT and MRI (P> 0.05). There was no statistical significance in 41 patients with N lymph node metastasis. Conclusion: Both CT and MRI can be used for the preoperative TN staging of pelvic colorectal cancer. However, MRI can improve the preoperative T staging accuracy of colorectal cancer and guide the clinical treatment and the accurate development of the surgical plan.