MR对声门上型喉癌分期的价值

Evaluation of magnetic resonance imaging in staging of supraglottic carcinoma

目的 :探讨MR对声门上型喉癌术前T分期的准确性 ,为治疗方案选择提供影像学依据。方法 :对手术切除的4 8例声门上型喉癌的MR资料进行分析 ,观察肿瘤侵犯范围及有无颈淋巴结转移 ,按双盲法根据MR表现进行T分期并与手术病理结果进行对比。结果 :MR术前肿瘤T分期的准确性为 89.5 % (4 3/48) ,判断肿瘤侵犯周围结构的准确性在85 %～ 10 0 %之间 ,诊断颈部淋巴结的准确性为 89% (2 4 /2 7)。结论 :MR能准确判断肿瘤的侵犯范围 ,准确判断有无淋巴结的转移 。

Objective:To evaluate the value of the preoperative T staging of supr aglottic carcinoma by MR, and provide useful information for treatment. Methods: 48 patients with supraglottic carcinoma were confirmed by sur gery, their MR appearances were retrospectively studied, including the tumor ra nge and the number of metastasis lymph nodes,and then the tumors were staged.Th e staging was compared with the results gained by pathologic staging in double b lind.Results:The accuracy of the pre operative T staging were 89.5%,and the ac curacy for characterizing the tumor range were within 75%～100%. Accuracy of me tastasis lymph nodes in the neck were 89%.Conclusion: MR can reliably exhibit t he extension of the tumors and detect metastasis of lymph nodes, and provide us eful information for clinical treatment.