抑郁症首次发病与复发患者静息态功能磁共振低频振幅比率的差异

被引:24
作者
阎锐 [1 ]
姚志剑 [1 ,2 ]
卢青 [3 ]
韦茂彬 [3 ]
汤浩 [1 ]
韩莉 [1 ]
机构
[1] 南京医科大学附属脑科医院
[2] 南京神经精神病学研究所
[3] 东南大学学习科学研究中心
关键词
抑郁症; 静息态功能磁共振; 低频振幅比率;
D O I
暂无
中图分类号
R749.4 [情感性精神病];
学科分类号
100205 ;
摘要
目的:探讨首发与复发中青年抑郁症患者静息态下功能磁共振脑区低频振幅比率(fALFF)特征的差异,以及与症状严重程度和发作次数的相关性。方法:对16例首发抑郁患者(首发抑郁症组),16例复发抑郁患者(复发抑郁症组)和16名健康对照进行3.0T静息态功能磁共振扫描。结果在方差分析的基础上进行两两双样本t检验,将差异脑区与汉密尔顿抑郁量表总分及抑郁发作次数进行相关分析。结果:3组间fALFF值差异有统计学意义的脑区是左颞横回/左脑岛、左壳核、左前扣带回、左额上回及额中回(P<0.05,Alphasim矫正)。复发抑郁组与首发抑郁组相比,复发抑郁组左壳核、左前扣带回、左额中回及左脑岛fALFF值升高(P<0.05,Alphasim矫正);复发抑郁组与健康对照组相比,复发抑郁组左额上回及左前扣带回fALFF值升高(P<0.05,Alphasim矫正)。抑郁症差异脑区与临床症状相关分析显示,左脑岛和左侧壳核fALFF值与发作次数正相关(r=0.450,P=0.021;r=0.535,P=0.004)。结论:复发抑郁患者脑区fALFF升高,从能量的角度提示首发与复发抑郁存在差异,并表现出与复发抑郁患者更易复发的临床现象相关。
引用
收藏
页码:145 / 148
页数:4
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