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我们可以在脑瘤手术中使用圆形网格阵列来改进电皮质谱吗?

Brin E Freund1, Wendy J Sherman1, David S Sabsevitz2

  • 1Department of Neurology, Mayo Clinic College of Medicine, Mayo Clinic, Jacksonville, FL, United States of America.

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概括

一个新型的圆形电极网通过增强电皮质谱 (iECoG) 来改善脑瘤手术,以精确地绘制和切除,从而改善患者的治疗结果.

关键词:
大脑大脑大脑的大脑大脑电皮质谱 (电皮质谱) 是一种电皮质谱.电极电极是指一个电极.网格 网格 网格 网格 网格发作 发作 这些手术 手术 手术 手术 手术 手术 手术瘤是一个瘤.

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科学领域:

  • 神经外科 神经外科
  • 神经生理学 神经生理学
  • 生物医学工程 生物医学工程

背景情况:

  • 在脑瘤手术中,手术内电皮质谱 (iECoG) 对于定位发性区域至关重要.
  • 当前iECoG电极阵列的局限性可能会使功能性大脑映射和手术结果复杂化.
  • 在手术期间的发作或放出后可能会阻碍准确的解释,并导致手术的过早终止.

研究的目的:

  • 为iECoG引入和评估一种新型,高密度,空心圆形电极网格阵列.
  • 为了在脑瘤手术中比较新型圆形网格与标准线性条带电极的有效性.
  • 评估圆形网格对功能性大脑映射,瘤切除和术后恢复的影响.

主要方法:

  • 开发一种全新的360度,高密度的空心圆形电极网格阵列.
  • 在脑瘤切除过程中利用圆形网格进行连续的脑电图 (EEG) 记录和电刺激映射.
  • 用圆形网格进行手术的患者与传统的线性带电极之间的结果进行了比较.

主要成果:

  • 圆形网格显示,手术后运动缺陷的恢复显著更快 (2.4 vs. 9天,p=0.05).
  • 使用圆形网格实现了更广泛的瘤切除 (92.0%与77.6%,p=0.003).
  • 观察到卡诺夫斯基性能尺度 (p=0.007) 的较小降低,以及在记录放电后的提高灵敏度.

结论:

  • 定制的,更高密度的电极网,如圆形阵列,比商业上可用的选项提供了显著的优势.
  • 新型的圆形iECoG网格提高了功能性大脑映射和安全瘤切除的精度.
  • 这项技术有可能改善和脑瘤患者的生存和功能结果.