12例继发于桥脑出血的肥大性下橄榄核变性的MRI表现

发布时间：2018-06-09 20:33

本文选题：肥大性下橄榄核变性 + 桥脑出血　；参考：《临床放射学杂志》2015年01期

【摘要】：目的探讨桥脑出血继发肥大性下橄榄核变性(HOD)的MRI表现。方法回顾性分析12例桥脑出血后继发HOD的MRI表现,12例均行MRI常规序列和扩散加权成像(DWI)、磁敏感加权成像(SWI)或梯度回波(T2*WI)序列扫描,2例行扩散张量成像(DTI)扫描。结果 MRI表现为同侧或双侧下橄榄核体积增大或无明显变化,T1WI呈等或稍低信号,T2WI呈稍高或高信号,液体衰减反转恢复序列(FLAIR)呈等或稍高信号,DWI呈等或稍高信号,ADC图呈等或稍高信号,SWI或T2*WI呈等或稍高信号,其对原发出血病灶显示最好,DTI示病变侧纤维束稀少,3例并发双侧桥臂变性。结论 HOD多继发于桥脑背盖部出血,有特定的发病部位和较为特征的MRI表现,结合其原发病变可对HOD作出正确诊断。
[Abstract]:Objective to investigate the MRI findings of hypoolivary degeneration due to pontine hemorrhage. Methods the MRI findings of 12 patients with secondary hod after pontine hemorrhage were retrospectively analyzed. All 12 cases underwent conventional and diffusion-weighted imaging (DWI), magnetic sensitivity weighted imaging (MRI) or gradient echo T2WI (T2WI) sequence, and 2 cases underwent diffusion Zhang Liang imaging (DTI). Results MRI findings showed that the volume of ipsilateral or bilateral inferior olivary nuclei was enlarged or had no obvious changes. The signal intensity of T _ 1WI was equal or slightly low on T _ 2WI, and the signal intensity was slightly high or high on T _ 2WI. The fluid attenuated inversion recovery sequence (FLAIRI) showed iso-or slightly higher signal intensity on DWI or iso-or slightly high signal intensity on DWI, and showed iso-or slightly high signal intensity on SWI or T _ 2T _ (2) T _ (2) T _ (2) T _ (2) T _ (2) T _ (2). DTI was the best way to show the primary hemorrhage lesion in 3 cases with bilateral degeneration of the bridge arm. Conclusion HOD is mainly secondary to the hemorrhage of the dorsal pontine lid and has specific location and characteristic MRI features. The correct diagnosis of HOD can be made in combination with its primary changes.
【作者单位】：郑州大学附属洛阳中心医院磁共振室;郑州大学附属洛阳中心医院儿科;
【分类号】：R445.2;R742

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