连续深灰色核DTI在帕金森病的变化超过十二年
Yao-Chia Shih1,2,3, Leon Qi Rong Ooi4, Hui-Hua Li2,5
1Department of Diagnostic Radiology, Singapore General Hospital, Singapore, Singapore.
Frontiers in aging neuroscience
|July 6, 2023
概括
纵向扩散张力成像 (DTI) 显示了帕金森病 (PD) 中深灰质的渐进性变化. 尾状核平均扩散率 (MD) 可以在12年内追踪疾病进展和运动症状.
科学领域:
- 神经成像是一种神经成像.
- 神经学 神经学
- 生物医学工程 生物医学工程
背景情况:
- 深灰质病理与异常性帕金森病 (PD) 的运动衰退有关.
- 之前在PD中进行的扩散张力成像 (DTI) 研究已经产生了不一致的结果.
- 缺乏PD中深灰质的长期,长达十年的DTI数据.
研究的目的:
- 在PD队列中,在12年内调查深灰质的连续DTI变化.
- 评估DTI指标作为PD进展的潜在生物标志物的临床实用性.
- 分析尾状核的纵向变化,布塔门,白色球体和泰拉姆斯.
主要方法:
- 一项涉及149名受试者 (72名PD患者,77名对照) 的病例控制研究,在1.5T时进行脑MRI.
- 从三个时间点 (6年间隔) 的深灰色物质核的细分面具中提取了DTI指标.
- 临床评估包括统一帕金森病评分表第3部分 (UPDRS-III) 和Hoehn和Yahr (H&Y) 阶段化;统计分析使用混合效应模型和相关性分析.
主要成果:
- 随着时间的推移,平均扩散率 (MD) 逐渐增加,特别是在门和白色球体.
- 分数异质性 (FA) 显示出复杂的变化,在第六年时在质体增加,在第十二年时在质体和白色球体减少.
- 普塔米纳,里达和尾状MD与疾病持续时间相关;尾状MD也与UPDRS-III和H&Y得分相关.
结论:
- 纵向DTI显示了PD在12年的时间里,在白色-形区域的差异性神经退行.
- 氨酸和乳腺体的FA变化表现出复杂的模式.
- 尾状核MD显示出潜力作为一个替代标记,用于跟踪晚期PD进展和运动症状.
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