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目的探究直肠内充气多层螺旋CT(MSCT)对直肠癌术前肠系膜浸润及淋巴结转移分期的评估价值。方法选取2013年1月至2016年5月间深圳市龙岗区第六人民医院收治的84例经手术病理确诊的直肠癌患者,均行MSCT检查和常规螺旋CT增强扫描检查,以术后病理结果为金标准,对比两种检查方法诊断正确率。结果 MSCT检查对肠系膜浸润和淋巴结转移诊断准确率分别为90.5%(76/84)和89.3%(75/84),均显著高于常规螺旋CT增强扫描的61.9%(52/84)和64.3%(54/84),差异均有统计学意义(均P<0.05)。MSCT检查诊断不同浸润程度的直肠癌术前肠系膜浸润准确性,均显著高于常规螺旋CT增强扫描,差异均有统计学意义(均P<0.05);MSCT检查对直肠癌术前淋巴结转移分期中N0和N1期的诊断准确性均显著高于常规螺旋CT增强扫描,差异均有统计学意义(均P<0.05)。结论 MSCT对直肠癌术前肠系膜浸润及淋巴结转移分期的诊断准确性较高,可作为临床上首选的诊断方式。
Objective To investigate the value of multislice spiral CT (MSCT) in evaluating the preoperative mesenteric invasion and lymph node metastasis in rectal cancer. Methods From January 2013 to May 2016, 84 patients with pathologically confirmed rectal cancer admitted to the Sixth People’s Hospital of Longgang District of Shenzhen City were enrolled in this study. MSCT and routine spiral CT enhanced scanning were performed. The postoperative pathological results As the gold standard, compared with two methods of diagnosis diagnostic accuracy. Results The diagnostic accuracy of MSCT for mesenteric invasion and lymph node metastasis was 90.5% (76/84) and 89.3% (75/84), respectively, which were significantly higher than 61.9% (52/84) and 64.3% (54/84) respectively, the differences were statistically significant (all P <0.05). The accuracy of MSCT in the diagnosis of preoperative mesenteric invasion of rectal cancer with different degree of infiltration was significantly higher than that of conventional spiral CT (all P <0.05). MSCT showed no significant difference in preoperative lymph node metastasis stage The diagnostic accuracy of N0 and N1 stages was significantly higher than that of conventional spiral CT scan (all P <0.05). Conclusion MSCT has a high diagnostic accuracy for preoperative mesenteric invasion and lymph node metastasis staging, which can be used as the first choice of clinical diagnosis.