摘要
目的探讨室管膜瘤的磁共振成像(MRI)影像学表现及鉴别诊断,提高其诊断水平。方法总结分析经影像学及手术病理证实的室管膜瘤16例,所有患者均行MRI平扫和增强扫描,分析肿瘤部位、大小、生长方式、信号特点及强化方式,有无钙化、囊变等。结果室管膜瘤在T1WI上呈低信号,在T2WI上呈明显高信号,可显示瘤体内蜿蜒的流空血管,部分合并脑积水。囊变及钙化多见。注射对比剂钆喷酸葡胺注射液(Gd-DTPA)后病灶显著异常对比强化。结论室管膜瘤MRI表现具有一定的特征性,了解这些特征有助于室管膜瘤的术前诊断和鉴别诊断。
Objective Tn discuss the ependymoma MRI imaging findings and dift^rential diagnosis, and im- prove the level of diagnosis. Methods Ependymoma MRI findings of 16 cases confirmed pathologically were ana- lyzed and summarized retrospectively. All the patients were performed MRI flat and strengthen scan,The tumor loca- tion, size, growth mode, signal characteristics and enhancement pattern without calcification, sac change, elc. Results The tumor showed low signal on T1WI, obviously higher signal on T2WI. On T2WI imaging, it could display the curved /low empty vein within the tumor. Part of the disease combined hydrocephalus,and capsule change and calcification were see, n more in the tumors. Injection contrast of Gd-DTPA lesions significant anomalous contrast strengthening. The tumor showed marked enhancement after injection contrast of Gd-DTPA. Conclusion Ependymoma MRI imaging characteristics have specificity, which is valuable in the preoperative diagnosis and differential diagnosis.
出处
《实用医学影像杂志》
2013年第2期123-125,共3页
Journal of Practical Medical Imaging
关键词
室管膜瘤
磁共振成像
诊断
鉴别
Epedymome
Magnetic resonance imaging
Diagnosis, differential
