摘要
目的 回顾性分析经临床及病理证实 6 7例血源性脑及脑膜转移瘤的临床特征及MRI表现 ,探讨MRI诊断作用。方法 6 7例病人 ,男 5 0例 ,女 17例 ;年龄 18～ 77岁。其中 5 6例注射Gd DTPA后横轴位 ,矢状位及冠状位T1WI扫描。结果 MRI诊断单纯脑转移 41例 ,单纯脑膜转移 5例 ,脑转移侵及脑膜 19例 ,脑转移合并脑膜转移 2例。 5 6例增强扫描中均有不同程度之强化 ,多呈圆形结节或环形 ,直径在 0 2～ 7 0cm之间。脑转移侵及脑膜可见脑膜增厚或类似“靶征”或“鼠尾征”。结论 MRI是诊断脑及脑膜转移的可靠方法 ,增强MRI对脑及脑膜转移的诊断具有重要价值 ,鉴别诊断应结合临床资料和其他影像学资料综合分析。
Objective To analyse respectively the clinical and MRI features of 67 hematogenous cerebral and meningeal metastases proved by clinical and pathology.To explore MRI diagnostic function. Methods 67 patients including 50 males and 17 females with the age of 18～77 years old.Pre\| and post\|enhancement with Gadolinum DTPA of 56 patients were taken with transveaxial sagittal and coronal planes. Results MRI found 41 cerebral metastasis,5 meningeal metastasis and 19 cerebral metastasis invaded meninge,2 cerebral with meningeal metastasis.56 post\|enhanced MRI showed different degree of spherical nodule or ring enhancement.The diameter of metastasis was 0 2～7 0 cm.Meningeal thicking or just like “target sign” or “tail of mouse sign” were found after cerebral metastasis invaded neighbour meninges. Conclusion MRI is a good method for diagnosing cerebral and meningeal metastasis.Enhanced MRI has a important value on cerebral and meningeal metastasis.Differential diagnosis has to combine with other imaging information and clinical data. [
出处
《中国医学影像技术》
CSCD
北大核心
2000年第9期728-731,共4页
Chinese Journal of Medical Imaging Technology
