脑卒中后抑郁患者前扣带回、海马灰质体积磁共振成像研究

被引:13
作者
吴磊 [1 ]
吴文 [1 ]
曾庆 [1 ]
赵一瑾 [1 ]
杨建明 [2 ]
机构
[1] 南方医科大学珠江医院康复医学科
[2] 南方医科大学珠江医院影像诊断科
基金
广东省自然科学基金;
关键词
脑卒中后抑郁; 灰质体积; 海马; 前扣带回; 磁共振成像; 形态测量学;
D O I
10.16016/j.1000-5404.2013.23.006
中图分类号
R445.2 [核磁共振成像];
学科分类号
摘要
目的探讨脑卒中后抑郁(post-stroke dpression,PSD)患者前扣带回、双侧海马灰质体积的改变及其与抑郁严重程度的相关性。方法 13例脑卒中后抑郁患者(PSD组)和18例脑卒中后无抑郁患者(non-PSD组)接受3D高分辨率T1WI磁共振扫描,采用VBM-DARTEL方法对扫描获得的结构图像进行预处理,并将双侧海马及前扣带回作为感兴趣区(region of interest,ROI),最后用双样本t检验比较PSD组与non-PSD组组间灰质体积差异。结果与non-PSD组相比,PSD组患者双侧前扣带回(体素>200)及双侧海马(左侧体素>200,右侧体素>200)体积下降差异具有统计学意义(P<0.001,未校正),未发现灰质体积显著增加的区域。在PSD组中,显著下降的灰质体积与汉密尔顿抑郁量表(Hamilton depression scale,HAMD)评分及抑郁持续时间无显著相关关系(与HAMD评分:r双侧前扣带回=0.343,r左侧海马=0.356,r右侧海马=0.240;与抑郁持续时间:r双侧前扣带回=0.379,r左侧海马=0.452,r右侧海马=0.413;P>0.05)。结论与原发性抑郁相似,卒中后抑郁患者也存在前扣带回和海马灰质体积下降,但海马和前扣带回灰质体积下降与抑郁严重程度无显著相关关系。
引用
收藏
页码:2577 / 2581
页数:5
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