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目的探讨CT及MRI对鼻咽癌分期的影响。方法经病理证实的鼻咽癌592例,收集治疗前鼻咽及颈部CT及MRI资料,并作分期比较。结果MRI分期结果较CT晚,CT中T1+T2比例达59.4%,MRI中为39.9%,差异有统计学意义(P=0.000)。而MRI的T3和T3+T4的频率为27%和60.1%,分别高于CT的频率9.02%和40.8%,差异有统计学意义(P=0.000)。结论MRI较CT对鼻咽癌T分期的诊断具有优越性。
Objective To investigate the effect of CT and MRI on the staging of nasopharyngeal carcinoma. Methods 592 cases of nasopharyngeal carcinoma confirmed by pathology were collected before CT and MRI of nasopharyngeal and neck, and compared for staging. Results The results of MRI staging were later than CT. The proportion of T1 + T2 in CT was 59.4% and in MRI 39.9%, the difference was statistically significant (P = 0.000). The frequencies of T3 and T3 + T4 in MRI were 27% and 60.1%, respectively, which were higher than those of CT (9.02% and 40.8% respectively). The difference was statistically significant (P = 0.000). Conclusion MRI is superior to CT in the diagnosis of T stage of nasopharyngeal carcinoma.