| 黄劲柏,徐海波,孔祥泉,史河水,李欣,吴汉平,刘定西.3D-CISS序列对颅内表皮样囊肿的诊断价值[J].中国医学影像技术,2005,21(11):1683~1685 |
| 3D-CISS序列对颅内表皮样囊肿的诊断价值 |
| Diagnostic value of MR 3D-CISS sequence in intracranial epidermoid cysts |
| 投稿时间：2005-06-20 修订日期：2005-09-02 |
| DOI： |
| 中文关键词: 表皮样囊肿 脑 磁共振成像 诊断显像 |
| 英文关键词:Epidermal cyst Brain Magnetic resonance imaging Diagnostic imaging |
| 基金项目: |
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| 中文摘要: |
| 目的 评价MR 3D稳态构成干扰序列(CISS)对颅内表皮样囊肿的诊断价值。方法 回顾性分析12例手术病理证实的颅内表皮样囊肿(EC)的3D-CISS影像表现,并与常规MR T1WI、T2WI进行对照。结果 常规MRI发现病灶11例,8例信号强度与脑脊液相似,难与蛛网膜囊肿鉴别,11例均不能辩认肿瘤的确切边界。3D-CISS发现病灶12例,均表现为高信号脑脊液中的低信号充盈缺损,信号不均,10例呈沿脑池脑室匐行生长,3例包绕三叉神经,1例推挤三叉神经使之移位,1例 |
| 英文摘要: |
| Objective To evaluate the diagnostic value of MR 3D constructive interference in steady state (CISS) in intracranial epidermoid cysts (EC). Methods The 3D-CISS manifestations of 12 patients with surgically confirmed intracranial epidermoid cysts were analyzed retrospectively, and were compared with the findings of conventional magnetic resonance imaging sequences. Results On conventional MRI sequences, 11 lesions were detected and the borders were hard to define. Of the 11 lesions, 8 showed isointense to cerebrospinal fluid (CSF) on T1 and T2WI. 3D-CISS sequence detected all of the 12 lesions and depicted all tumors as hypointense relative to hyperintense CSF and the signal intensity is heterogeneous. Of the 12 lesions, 10 extended along cerebral cistern and ventricle, 3 showed trigeminal nerve embeded, 1 trigeminal nerve pushed, and basilar artery partly encircled in 1 case. Conclusion 3D-CISS is the best modality for the diagnosis of EC. It is more sensitive on detecting lesions, showing tumor extension and complex signal intensity of EC, and more reliable on diagnosis and differential diagnosis than conventional MRI sequences, and can demonstrate the relationship of EC and the surrounding important structures clearly. |
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