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原发性三叉神经痛伽玛刀治疗后MRI改变及疗效 被引量:2

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摘要 目的观察原发性三叉神经痛伽玛刀治疗后MRI表现及探讨疗效的病因。方法随访12例原发性三叉神经痛患者伽玛刀治疗后12至30个月复查,行头颅MRI 3D-FISP序列簿层扫描,采用测量法确定三叉神经根、血管以及脑干的解剖改变,与治疗前进行对照。结果所有患者治疗后脑干测量与治疗前无改变;7例治疗前可见责任血管,治疗后依然存在。所有患者治疗后MRI可观察到治疗侧呈较低信号改变及三叉神经根截面面积萎缩,神经萎缩率为39.8%。三叉神经痛的缓解与神经萎缩的过程相吻合。结论伽玛刀治疗原发性三叉神经痛可造成治疗部位三叉神经根萎缩及神经退行性改变,从而达到缓解患者疼痛的临床症状,治疗效果与神经血管减压术相似。因此,认为三叉神经萎缩性改变是导致三叉神经痛缓解的原因之一。
机构地区 解放军第 解放军第
出处 《立体定向和功能性神经外科杂志》 2011年第1期52-54,共3页 Chinese Journal of Stereotactic and Functional Neurosurgery
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参考文献9

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二级参考文献30

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