我院自１９８８年１月至１９９４年１２月收治首程放疗鼻咽癌９３８例，随诊中６例发生放射性脊髓病，均经核磁共振成像（ＭＲＩ）检查诊断。本文根据临床资料，分析其发病规律及ＭＲＩ诊断的优越性。１材料和方法该６例病人均经病理诊断为鼻咽癌，放疗采用加速器８ＭＶＸ... In our hospital from January 1988 to December 1994, 938 cases of nasopharyngeal carcinoma were treated by first-episode radiotherapy, and 6 cases of radioactive myelopathy were followed up. All of them were diagnosed by magnetic resonance imaging (MRI). This article based on clinical data, analysis of the incidence of MRI diagnosis and the superiority. 1 Materials and Methods The 6 patients were pathologically diagnosed as nasopharyngeal carcinoma, radiotherapy using accelerator 8MVX ...