| 孙胜军,戴建平,高培毅.颅底部脊索瘤的CT 及MR 诊断[J].中国医学影像技术,2000,16(5):352~354 |
| 颅底部脊索瘤的CT 及MR 诊断 |
| Skull Base Chordomas Diagnosed by CT and MR Imaging |
| 投稿时间：1999-11-24 |
| DOI： |
| 中文关键词: 颅底 脊索瘤 CT MRI |
| 英文关键词:Skull base Chordoma CT MRI |
| 基金项目: |
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| 中文摘要: |
| 目的 分析50 例经手术后病理证实为颅底部脊索瘤的CT 及MR 表现,提高对该病的认识。方法 男
性34 例,女性26 例,全部行MR 平扫及增强扫描,部分病例同时做了CT 扫描及DSA 检查。结果 其影像学表现如
下: ①发生部位主要位于斜坡,鞍旁,并可见周围结构联合受累者; ②肿瘤的形态为不规则形、分叶状70 %; ③MR 影
像上主要为长T1 ,长T2 信号,内部结构以不均匀为主; ④CT 上主要为不均匀稍高密度影,肿 |
| 英文摘要: |
| Purpose Fifty cases of skull base chordomas are reviewed ,included the CT and MR imaging apperance have
been analysed , In order to know more about skull base chordomas features. OMethods Collected fifty cases of skull base
chordomas ,34 cases are male ,16 cases are female. All of them were examed by MR ,a part of them were examed by CT. Included precontrast scan and postcontrast . Results Skull base chordoma imagings apperance features followed by : ①The
special location ,such as mainly raised on clivus ,paraselar. some of them were from clivus or paraselar to another adjacent
stucture in combination with invasion ; ②MR apperance is low signal on T1-WI ,and high signal on T2WI ,most of the
structure of them were inhomogenously ; ③The most shape of them were irregular or mutiple lobe2like 70 %; ④CT imaging
features were slightly hyperdensity and most structure of them inhomogenously ,some irregular calcification could be found
inside the mass ; ⑤Adjacent skull base bone were damaged in most cases ,about 68 %; ⑥After contrast administration ,most
lesion were inhomogenously enhanced. Conclusion According to the features of MR and CT imaging of the skull base
chordomas the correct diagnosis could be done before operation. MR imaging is more advantage than CT. |
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