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中年女性首发重性抑郁症患者基于体素的形态学MRI研究

, PP. 2516-2519

Keywords: 抑郁症,形态测量学,磁共振成像

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Abstract:

目的运用基于体素形态学(voxel-basedmorphometry,VBM)方法探索中年女性首发重性抑郁症患者与正常人脑结构差异。方法对15例未经治疗的中年女性首发重性抑郁症患者和30例正常对照者进行头颅MRI检查,通过3D扰相梯度回波序列(spoiledgradientrecall,SPGR)获得3DT1图像,采用优化的VBM方法进行全脑比较分析。结果与正常对照组相比,抑郁症患者右侧枕中回灰质减少(P<0.01,体素>100),未发现灰质明显增加的区域(体素<100);左侧眶额回、右侧尾状核区白质减少(P<0.01,体素>100),未发现白质明显增加的区域(P>0.01)。结论中年女性首发重性抑郁症患者的发病可能与枕中回、眶额回及尾状核区的脑结构改变有关。

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