眼眶海绵状血管瘤的MRI诊断  

MRI diagnosis of orbital cavernous hemangioma

作　　者：查广盛 

出　　处：《中国实用眼科杂志》2008年第6期598-600,共3页Chinese Journal of Practical Ophthalmology

摘　　要：目的分析眼眶海绵状血管瘤的MRI表现，以进一步提高该病诊断的准确性。方法对23例经手术病理证实眼眶海绵状血管瘤的患者，均行MRI平扫及动态增强扫描。结果23例眼眶海绵状血管瘤T1WI呈等或稍低信号，T2WI、FLAIR呈高信号，DWI呈等或稍高信号。21例动态增强扫描呈“渐进性强化”。结论“渐进性强化”是诊断眼眶海绵状血管瘤的特异性征象，MRI对眼眶海绵状血管瘤的定位和定性诊断具有很高价值。Objective To analyze the MRI features of orbital cavernous hemangioma and to improve the diagnostic accuracy with MRI. Methods 23 patients with orbital cavernous hemangioma were proved by surgical pathology, underwent plain scan and dynamic enhancement scan. Results 23 cases of orbital cavernous hemangioma showed isointense or slightly hypointense signa on T1WI, hyperintense signa on T2W, hyperintense signa on FLAIR, isointense or slightly hyperintense signa on DWI, 21 cases of orbital cavernous hemangioma demonstrated ＂progressive enhancement＂. Conclusion ＂progressive enhancement＂ is a pathognomonic sign of orbital cavernous hemangioma which differentiates it from other tumors,MRI has a high value of localization and qualification in the diagnosis of orbital cavernous Hemangioma.

关 键 词：眼眶海绵状血管瘤 MRI诊断 动态增强扫描 定性诊断 

分 类 号：R739.72[医药卫生—肿瘤] R739.41[医药卫生—临床医学]