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在过度活动的膀中,功能连接密度和有效连接的异常动态
Zuo Long1, Wang Shuangkun1, Tian Tian1
1Department of Radiology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China.
Neurourology and urodynamics
|August 12, 2024
概括
过度活跃的膀 (OAB) 与大脑连接的改变有关. 神经成像显示了OAB患者动态功能和有效连接的独特模式,表明了潜在的神经变化.
科学领域:
- 神经科学是一个神经科学.
- 医疗成像医学成像
- 泌尿器科 泌尿器科 泌尿器科 泌尿器科
背景情况:
- 过度活跃的膀 (OAB) 是一种以尿急性为特征的疾病.
- 在OAB病理生理学的基础上的神经机制仍然不完全理解.
- 功能磁共振成像 (fMRI) 提供了对大脑活动和连接性的洞察.
研究的目的:
- 研究与健康对照组 (HC) 相比,女性OAB患者的动态功能连接密度 (dFCD) 和动态有效连接密度 (dEC) 的变化.
- 使用fMRI识别与OAB相关的独特的神经通信模式.
- 为了探索OAB症状的潜在神经支.
主要方法:
- 从43名女性OAB患者和40名女性HC患者获得的休息状态fMRI数据.
- 移动窗口相关性用于评估dFCD变异性.
- 格兰杰因果分析和k-means聚类用于检查基于dFCD的dEC并识别连接状态.
主要成果:
- 与HC患者相比,OAB患者在左前带带皮层 (ACC) 和左中间前额皮层 (mPFC) 中表现出dFCD的减少.
- 在OAB患者中观察到明显的dEC模式,包括涉及ACC,mPFC,补充运动区域 (SMA) 和背侧前额皮层 (dlPFC) 的改变连接.
- 在OAB参与者中,在激发性和抑制性连接中发现了具体的状态依赖的变化.
结论:
- OAB患者在动态功能和有效的大脑连接方面表现出显著的变化.
- 这些连接性变化表明有不同的神经机制有助于OAB病理生理学.
- 基于fMRI的连接分析为了解OAB提供了有价值的信息.
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