血管性认知功能障碍脑血流灌注的临床研究附视频

被引:4
作者
高薇薇 [1 ]
薛蓉 [2 ]
程焱 [2 ]
机构
[1] 天津市中医药研究院附属医院ICU
[2] 天津医科大学总医院神经内科
关键词
血管性认知功能障碍; 脑血流量; 单电子发射断层扫描;
D O I
暂无
中图分类号
R749.1 [脑器质性精神障碍];
学科分类号
100205 ;
摘要
目的探讨血管性认知功能障碍(vascular cognitive impairment,VCI)脑血流灌注的早期表现,分析局部脑血流量(regional cerebral blood flow,rCBF)的减低与认知受损领域的关系。方法将入组患者按照认知受损程度分为:认知正常组、非痴呆血管性认知功能障碍(vascularcognitive impairment not dementia,VCIND)组及血管性痴呆(vascular dementia,VaD)组。分析比较三组患者不同区域rCBF的差异,及各区域rCBF与蒙特利尔认知评分(Montreal Cognitive Assessment,MoCA)相关性;分析比较血流灌注显像与形态学显像的差异;分析rCBF与各认知受损领域的关系。结果三组患者左侧颞叶、左丘脑、左侧海马局部脑血流量差异有显著性(F=8.232、6.237、6.136;P=0.002、0.006、0.000)。左侧颞叶、丘脑及海马rCBF与MoCA评分具有相关性(P=0.011、0.023、0.029)且为正性相关(r=0.421、0.355、0.323)。SPECT检查下出现rCBF减低的平均区域数多于头部磁共振检查下出现梗死灶的平均区域数,但二者差异无显著性。左侧顶叶rCBF与计算力相关,且呈正相关性(Beta=0.445,P=0.020);右侧海马、右侧颞叶与时间地点定向力相关,且为正相关(Beta=0.626、0.740;P=0.035、0.023)。结论 SPECT检查下显示rCBF的变化为VCI是以颞叶、海马、丘脑低血流代谢为主要表现提供了病理生理学依据。SPECT检查下显示rCBF的变化有早于脑组织结构检查下形态结构变化的趋势。
引用
收藏
页码:284 / 289
页数:6
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