患有血溶性尿素综合征的儿童的大脑微观结构变化
Eva Bültmann1, Antonia Zapf2, Hans Joachim Mussgnug3
1Institute of Diagnostic and Interventional Neuroradiology, Hannover Medical School, Carl-Neuberg-Straße 1, D-30625, Hannover, Germany. bueltmann.eva@mh-hannover.de.
European journal of pediatrics
|August 9, 2023
概括
表面扩散系数 (ADC) 地图揭示了血溶性尿素综合征 (HUS) 儿童的微观结构性大脑变化. 定量ADC分析显示的大脑变化比定性发现更广泛,有助于在儿科HUS中预测早期的神经结果.
科学领域:
- 儿科神经学 儿科神经学
- 神经辐射学神经辐射学
- 医学成像医学成像
背景情况:
- 血溶性尿性综合征 (HUS) 可以导致儿童的神经复杂症.
- 磁共振成像 (MRI) 用于评估HUS患者的大脑变化.
- 之前的研究表明,潜在的MRI发现,如T2高强度和基底,乳头和白质中的扩散性变化.
研究的目的:
- 用显微扩散系数 (ADC) 地图来评估儿科HUS患者的微结构性大脑变化.
- 为了将定量ADC值与健康儿童的年龄相关参考值进行比较.
- 为了将MRI发现与HUS患者的临床结果相关联.
主要方法:
- 在12名儿科HUS患者 (0.8-14.6岁) 中,对常规MRI (1.5T) 的回顾性分析.
- 在35个大脑区域测量ADC值,并与已发表的儿科参考值进行比较.
- 扩散权重成像 (DWI) 病变的定性评估和ADC值的定量分析,根据神经结果分为子组.
主要成果:
- 与ADC相关的DWI定性变化在80%的神经结果不佳的患者 (亚组A) 中观察到,主要在基底和thalami.
- 具有良好的神经结果的患者 (亚组B) 没有表现出与ADC相关的DWI定性改变,即使有T2病变.
- 定量分析显示,所有HUS患者的ADC值异常,A小组 (中位数16) 与B小组 (中位数11) 相比,A小组更受影响的区域趋势较大.
结论:
- DWI和定量ADC测量揭示了小儿HUS患者与神经结果差异的差异.
- ADC值表明大脑微结构变化比单独的定性发现更广泛.
- 定性和定量MRI发现都可能成为儿科HUS神经系统神经学结果的早期预后指标.
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