【摘要】 目的观察磁共振成像(MRI)技术在直肠癌术前TNM分期评估中的应用价值。方法回顾性分析2008年12月-2011年12月我院胃肠外科直肠癌患者101例行手术治疗,对术前MRI检查结果与术后组织病理学结果进行比较。结果 MRI对肿瘤T分期评估总准确率为60.4%(61/101),对肿瘤T分期评估的过度分期率与分期不足率分别为17.8%(18/101)及21.8%(22/101);对肿瘤N分期评估总准确率分别为72.3%(73/101),对肿瘤N分期评估的过度分期率与分期不足率分别为17.8%及19.8%。以淋巴结最长径>5mm为标准评估淋巴结转移阳性具有诊断意义(P<0.01),其评估的敏感性为80.6%、特异性为73.3%。结论 MRI检查是一种较为准确的直肠癌术前TNM分期评估手段。更多还原

【Abstract】 Objective To observe the application value of MRI in the assess of TNM staging before rectal cancer surgery.Methods Retrospective analysis the results of MRI of 101 cases patients with rectal cancer surgery of gastrointestinal surgery in our hospital.Compared the result between pathological and MRI.Results The total accuracy rate of MRI in the assess of tumor T stage was 60.4%(61/101).The excessive installment rate of MRI in the assess of tumor T stage was 17.8%(18/101).The underemployment rate installments of MRI in the assess of tumor T stage was 21.8%(22/101).The total accuracy rate of MRI in the assess of tumor N stage was 72.3%(73/101).The excessive installment rate of MRI in the assess of tumor N stage was 17.8%.The underemployment rate installments of MRI in the assess of tumor N stage was 19.8%.Set the longest diameter of lymph node(> 5mm) as the criterion of the assess lymph node metastasis had significance in diagnosis(P <0.01),the sensitivity was 80.6%and the specificity was 73.3%.Conclusion MRI was an more accurate measure in the assess of TNM staging before rectal cancer surgery.更多还原