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目的 :评价高场MRI(1.5T)在喉、下咽癌术前分期中的价值。方法 :对 36例喉、下咽癌患者的MRI资料进行回顾性分期 ,并与临床分期及手术病理分期相对照。结果 :MRI对各期喉、下咽癌的准确率分别是T1:92 % ,T2 :86 % ,T3:86 % ,T4 :10 0 %。临床分期准确率分别是T1:10 0 % ,T2 :86 % ,T3:5 7% ,T4 :2 2 %。MRI和临床分期总准确率分别是 92 % ,6 9%。二者之间有显著性差异。结论 :高场MRI通过不同加权像的对比和从多角度准确显示肿瘤的部位形态及浸润范围 ,因而显著性提高喉、下咽癌术前分期的准确性
Objective: To evaluate the value of high field MRI (1.5T) in the preoperative staging of laryngeal and hypopharyngeal carcinoma. Methods: MRI data of 36 patients with laryngeal and hypopharyngeal carcinoma were retrospectively staged, and compared with the clinical stage and surgical pathological stage. Results: The accuracy rates of MRI for throat and hypopharyngeal carcinoma were T1: 92%, T2: 86%, T3: 86% and T4: 100% respectively. Clinical staging accuracy rates were T1: 100%, T2: 86%, T3: 57%, T4: 22%. The total accuracy of MRI and clinical staging were 92% and 69% respectively. There are significant differences between the two. CONCLUSIONS: High-field MRI can significantly improve the accuracy of preoperative staging of laryngeal and hypopharyngeal carcinoma by contrasting different weighted images and accurately displaying the tumor’s site morphology and infiltration range from multiple perspectives