论文部分内容阅读
目的分析脑内淋巴瘤的磁共振影像学表现,提高淋巴瘤的检出率。方法回顾性分析30例病理证实的脑内淋巴瘤的磁共振影像学表现。30例病例均使用GE3.0T磁共振,进行SE序列T1WI、T2WI、FLAIR、DWI以及对比增强T1WI扫描,分析其在各序列图像上所显示内部信号和强化特征,以及与相邻组织结构的相互关系特征。结果病变在T1WI图像上均为等或稍低信号;T2WI图像上均为与灰质相似或明显低于周围水肿的稍高信号;磁共振弥散加权成像图像上肿瘤为高信号;增强扫描后多呈均质或明显强化,周围水肿均明显,可见占位效应。结论磁共振增强扫描后淋巴瘤强化明显及磁共振弥散加权成像呈高信号可与其它颅内肿瘤进行鉴别,对淋巴瘤诊断有较高价值,可提高淋巴瘤的检出率。
Objective To analyze the magnetic resonance imaging findings of intracerebral lymphoma and to improve the detection rate of lymphoma. Methods Retrospective analysis of 30 cases of pathologically confirmed intracranial lymphoma MRI findings. The GE3.0T magnetic resonance imaging was used in all 30 cases. The T1WI, T2WI, FLAIR, DWI and contrast enhanced T1WI scan of SE were performed. The internal signals and enhancement features of each sequence were analyzed, Relationship characteristics. Results The lesion was equal or slightly lower on the T1WI images. The T2WI images were slightly higher signal intensity than the gray matter or lower than the surrounding edema. The tumors on the diffusion weighted MR imaging were hyperintense. Homogeneous or significantly enhanced peripheral edema were evident, visible mass effect. Conclusion MRI enhanced MRI and DWI showed high signal can be differentiated from other intracranial tumors. It has high value in the diagnosis of lymphoma and can improve the detection rate of lymphoma.