摘要
目的 :提高对鼻咽癌放疗后脑干损伤MRI表现的认识与诊断水平。方法 :分析鼻咽癌放疗后脑干损伤的 17例患者MRI检查资料 ,本组病例在放疗后 0 .5～ 12年出现不同程度颅神经损伤症状。结果 :病变好发于脑干 ,表现为稍长或长T1、长T2 信号。注射Gd DTPA后大多数病例强化。结论 :鼻咽癌放疗后脑干损伤的MRI表现具有一定特点 ,MRI是诊断该病的有效方法。
Objective:To improve the understanding about MRI findings of radiation encephalopathy.Methods:MR examination was performed in 17 cases with nasopharyngeal carcinoma after radiation for five months to twelve years.All cases could be found symptoms of cranial nerve injury.Results:The MRI findings included:the lesions were mostly found in brain stem,and demonstrated slightly long or long T 1 and long T 2 signal intensity,most lesions were enhanced after Gd- DTPA administration.Conclusion:MRI of radiation encephalopathy present some characteristic featrues,and MRI is an effective method to find radiation encephalopathy in patients with nasopharyngeal caricnoma after radiotherapy.
出处
《放射学实践》
2004年第8期577-579,共3页
Radiologic Practice
关键词
鼻咽癌
放疗
脑干损伤
MRI诊断
磁共振成像
Nasopharyngeal carcinoma
Radiation injuries
Brain
Magnetic resonance imaging
