在脑内自体主导动脉病与皮质下心脏病发作和白内障病的症状发作中,有关闭性纤维干扰
在PubMed上查看摘要
概括
此摘要是机器生成的。骨化平均扩散率 (PSMD) 的峰值宽度是脑内自体主导动脉病变与皮质下心脏病发作和白细胞病变 (CADASIL) 疾病严重程度和进展的强有力的指标. 这种扩散张力成像指标有助于患者分层和预后.
科学领域
- 神经成像
- 神经学
- 遗传学
背景情况
- 大脑自体主导性动脉病与皮下心脏病发作和白脑病变 (CADASIL) 是一种由白质高强度特征的遗传小血管疾病.
- 在NOTCH3基因的致病变体导致CADASIL.
研究的目的
- 在症状和预先显现的CADASIL患者中评估微观结构白质完整性.
- 使用化平均扩散率 (PSMD) 的峰值宽度,这是一个扩散张力成像度量,用于评估白质完整性.
主要方法
- 161名参与者 (60名患有症状的CADASIL,67名临床前NOTCH3变体携带者,34名对照者) 接受了脑磁共振扫描.
- 对投射,关联和指针状纤维进行了PSMD分析.
- 评估认知功能和残疾;对35名参与者的纵向MRI数据进行了分析.
主要成果
- 与认知功能和残疾有很强的相关性 (40% - 60%的差异).
- 与临床前携带者和对照者相比,患有症状的CADASIL患者显示出显著更高的辅导纤维PSMD.
- 较高的辅管纤维PSMD预测了疾病的更快进展,并区分了症状和临床前患者.
结论
- 在评估CADASIL的严重程度和进展方面,PSMD是潜在的生物标志物.
- 这一指标显示了CADASIL对患者分层和预后的临床实用性.
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