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目的:回顾分析31例多发性硬化患者的脑MRI常规扫描序列及磁敏感加权成像(susceptibility weighted imaging,SWI)的特征,以提高脑多发性硬化诊断的准确率。方法 :选取2012年8月至2014年6月我院确诊的多发性硬化患者31例,分析所有患者的MRI及SWI检查结果。结果:多发性硬化患者脑脱髓鞘斑块在常规MRI图像上可表现为树冠征、犄角征、煎鸡蛋征和倒逗号征,而在SWI图像上可见有小静脉穿行或绕行病灶。结论:常规MRI及SWI图像上的特异性征象对提高脑多发性硬化的诊断准确率有很高的应用价值。
OBJECTIVE: To retrospectively analyze the features of conventional brain MRI scan and susceptibility weighted imaging (SWI) in 31 patients with multiple sclerosis to improve the diagnostic accuracy of multiple sclerosis. Methods: Totally 31 patients with multiple sclerosis diagnosed in our hospital from August 2012 to June 2014 were selected. MRI and SWI results of all patients were analyzed. Results: The demyelinating plaques in patients with multiple sclerosis could show signs of crown, horns, fried eggs and inverted comma on conventional MRI images. However, the small veins could be seen through the SWI images. Conclusion: The specific signs of conventional MRI and SWI images have high value in improving the diagnostic accuracy of multiple sclerosis.