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PET与静止状态功能性MRI结合使用,用于研究慢性意识障碍

Alice Deruti¹, Jean P Medina Carrion¹, Mario Stanziano^1,2

¹Neuroradiology Unit, Diagnostic and Technology Department, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan 20133, Italy.

Brain communications

|January 12, 2026

概括

18F-氧葡萄糖PET (FDG-PET) 有效地区分慢性患者的意识障碍. 代谢活动与静止状态fMRI网络相关,但病因学影响诊断准确性.

科学领域:

神经科学是一个神经科学.
医疗成像医学成像
神经学神经学

背景情况:

18F-氧葡萄糖PET (FDG-PET) 有助于区分意识障碍 (DoC).
有限的研究存在于多种病因 (创伤性,血管性,无毒性) 的慢性DoC患者.
代谢活动和休息状态功能性MRI (fMRI) 网络在DoC之间的联系尚不清楚.

研究的目的:

评估慢性DoC患者不同病因的FDG-PET诊断准确性.
调查休息状态fMRI网络存在与FDG-PET代谢活动之间的关联.
在慢性DoC患者中识别隐藏的皮层处理.

主要方法:

结合FDG-PET,休息状态fMRI和MRI在84名慢性DoC患者中.
将患者分为植物状态/不响应的清醒综合征 (VS/UWS) 和最小意识状态 (MCS).
计算了fMRI网络,前皮质和全脑面膜的标准化吸收值.

主要成果:

在所有地区,VS/UWS患者的新陈代谢明显低于MCS患者.
与创伤和血管病因相比,无氧性脑损伤患者表现出更严重的代谢减少.
前皮和中部视觉网络显示出最高的诊断准确性 (AUC=0.82-0.83).
静止状态fMRI网络识别与增加的新陈代谢相关,即使在结构损伤的患者中也是如此.

结论:

在慢性DoC患者中,FDG-PET对于区分VS/UWS与MCS非常有价值.
病因学显著影响FDG-PET诊断的准确性.
代谢水平与静态fMRI网络的存在保持一致,这表明功能连接.

关键词:

德国联邦财政局-PET 病因病因学病因学最少意识的状态状态.静止状态的fMRI进行.植物状态/没有反应的清醒状态.

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