Eur Radiol:脑血管反应性受损是否能作为多发性硬化患者认知功能下降的早期标记物?

2017-11-17 shaosai MedSci原创

脑血管反应性与认知状态的关系尚不明确。本研究旨在验证多发性硬化患者脑血管反应性潜在性减低及其与认知状态的相关性,并将结果发表在Eur Radiol上。

血管反应性与认知状态的关系尚不明确。本研究旨在验证多发性硬化患者脑血管反应性潜在性减低及其与认知状态的相关性,并将结果发表在Eur Radiol上。

本研究共纳入了33例多发性硬化患者(9例进展型和24例复发缓解型,中位年龄39岁,男性12例)和22名健康志愿者,并行高碳酸实验后MRI检查来评估脑血管反应性及神经生理学评价。脑血管反应性为通过潮气量末二氧化碳变化校正的脑血流量增加百分比。利用血氧水平依赖饱和技术图像中整体及勾画感兴趣区进行评价。非参数检验评价组间差异性,利用线性模型评价相关性。

认知能力受损的患者血管反应性较认知功能正常的患者减低(p=0.004),其与教育程度具有相关性(R 2 = 0.35; p = 0.047)。在患者和对照组间脑血管反应性并无减低差异性。

多发性硬化患者认知功能受损可能是由脑血管反应性介导的。因此脑血管反应性可作为多发性硬化患者认知功能下降的标志物。

原始出处:

Metzger A, Le Bars E, Deverdun J. et al.Is impaired cerebral vasoreactivity an early marker of cognitive decline in multiple sclerosis patients? Eur Raidol.DOI: 10.1007/s00330-017-5068-5

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    2018-01-25 jml2009
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    2018-06-15 wjywjy
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