MRI对后循环可逆性脑病综合征的诊断价值

目的 分析后循环可逆性脑病综合征的MRI征象,以提高对该病的认识.方法 对临床诊治的16例后循环可逆性脑病综合征的MRI资料进行回顾性分析,全部患者均行常规MRI平扫和DWI检查.结果 病变部位位于枕叶16例,顶叶12例,额叶3例,颞叶2例,脑干2例,丘脑2例,T1WI呈稍低信号,T2WI呈稍高信号,T2WI-FLAIR像呈高信号,DWI呈高信号4例,低信号5例,等信号7例,对应的ADC图呈低、高、等信号.结论 后循环可逆性脑病综合征的影像学表现具有特征性,MRI对早期明确诊断有重要价值。

Diagnostic Value of MRI in Posterior Reversible Encephalopathy Syndrome

Objective The aim of this study was to analyze the MRI signs of posterior reversible encephalopathy syndrome to increase awareness of the disease. Methods The MRI manifestations of 16 cases with posterior reversible encephalopathy syndrome were analyzed retrospectively. All patients underwent conventional MRI plain scan and DWI examination. Results The lesions located in the occipital lobe, parietal lobe, frontal lobe, temporal lobe, brain stem and thalamic were seen in 16, 12, 3, 2, 2 and 2 cases, respectively. T1WI showed slightly lower signal, T2WI showed slightly higher signal, T2WI-FLAIR showed high signal, and DWI showed high signal in 4 cases, low signal in 5 cases and equal signal in 7 cases, with the corresponding ADC graphs low, high signal or equal signal. Conclusion The posterior reversible encephalopathy syndrome has characteristic imaging manifestation, and the MRI has a significant value in the early diagnosis of this disease.