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目的:评价CT和MRI在鼻咽癌诊断及临床分期中的作用。资料与方法:1994年3月至1995年12月,放疗前均行CT和MRI检查的鼻咽癌患者71例,CT行横轴位增强扫描,MRI行横轴位T1、T2加权扫描及矢状位和冠状位T1加权扫描。结果:1.CT的头长肌直接受侵假阳性率达59.3％。2.对Rouviere’s结肿大,MRI比CT的检出率高,分别为:42.3％和23.9％,(P<0.05)。3.我们建议:随着现代影像学的发展,有:必要对NPC的N分期标准进一步深入研究。结论:MRI在鼻咽癌的诊断及临床分期中的作用优于CT。
Objective: To evaluate the role of CT and MRI in the diagnosis and clinical stage of nasopharyngeal carcinoma. Materials and Methods: From March 1994 to December 1995, 71 patients with nasopharyngeal carcinoma were examined by CT and MRI before radiotherapy. The CT scan was performed with axial enhancement scan, axial scan T1 and T2 weighted MRI, Tonal and coronal T1 weighted scans. Results: 1.CT of the headlong muscle direct invasion false positive rate of 59.3%. 2. Rouviere’s knot enlargement, MRI detection rate higher than CT, respectively: 42.3% and 23.9%, (P <0.05). 3. We suggest: With the development of modern imaging, there is a need to further study the NPC N staging. Conclusion: MRI is superior to CT in the diagnosis and clinical staging of nasopharyngeal carcinoma.