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MRI Magnetic Compatible Electrical Neural Interface: from Materials to Application
Biosensors and Bioelectronics ( IF 12.6 ) Pub Date : 2021-09-01 , DOI: 10.1016/j.bios.2021.113592
Yuan Zhang 1 , Song Le 1 , Hui Li 2 , Bowen Ji 3 , Ming-Hao Wang 4 , Jin Tao 5 , Jing-Qiu Liang 5 , Xiao-Yong Zhang 6 , Xiao-Yang Kang 1
Affiliation  

Neural electrical interfaces are important tools for local neural stimulation and recording, which potentially have wide application in the diagnosis and treatment of neural diseases, as well as in the transmission of neural activity for brain-computer interface (BCI) systems. At the same time, magnetic resonance imaging (MRI) is one of the effective and non-invasive techniques for recording whole-brain signals, providing details of brain structures and also activation pattern maps. Simultaneous recording of extracellular neural signals and MRI combines two expressions of the same neural activity and is believed to be of great importance for the understanding of brain function. However, this combination makes requests on the magnetic and electronic performance of neural interface devices. MRI-compatibility refers here to a technological approach to simultaneous MRI and electrode recording or stimulation without artifacts in imaging. Trade-offs between materials magnetic susceptibility selection and electrical function should be considered. Herein, prominent trends in selecting materials of suitable magnetic properties are analyzed and material design, function and application of neural interfaces are outlined together with the remaining challenge to fabricate MRI-compatible neural interface.



中文翻译:

MRI 磁兼容电神经接口:从材料到应用

神经电接口是局部神经刺激和记录的重要工具,在神经疾病的诊断和治疗以及脑机接口(BCI)系统的神经活动传输中具有广泛的应用潜力。同时,磁共振成像 (MRI) 是记录全脑信号、提供大脑结构细节和激活模式图的有效和非侵入性技术之一。同时记录细胞外神经信号和 MRI 结合了相同神经活动的两种表达方式,被认为对理解大脑功能具有重要意义。然而,这种组合对神经接口设备的磁性和电子性能提出了要求。MRI 兼容性在这里是指一种技术方法,可同时进行 MRI 和电极记录或刺激,而不会出现成像中的伪影。应考虑材料磁化率选择和电气功能之间的权衡。在此,分析了选择具有合适磁性的材料的突出趋势,并概述了神经界面的材料设计、功能和应用,以及制造与 MRI 兼容的神经界面的剩余挑战。

更新日期:2021-09-01
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