Semi-automatic 10/20 Identification Method for MRI-Free Probe Placement in Transcranial Brain Mapping Techniques.
Semi-automatic 10/20 Identification Method for MRI-Free Probe Placement in Transcranial Brain Mapping Techniques.
复制标题
半自动10/20鉴定方法，用于经颅脑映射技术中的无MRI探针放置。
DOI：
10.3389/fnins.2017.00004
复制
发表时间：
2017
影响因子：
4.3
通讯作者：
Zhu CZ
中科院分区：
文献类型：
--
作者：
Xiao X;Zhu H;Liu WJ;Yu XT;Duan L;Li Z;Zhu CZ
国际10/20系统是用于经颅脑映射技术的重要的基于头表面的定位系统，例如，fNIRS和TMS。作为探头放置的指导，10/20系统允许在无MRI的情况下在多个受试者和实验之间实现适当的ROI覆盖和空间一致性。然而，传统的手动识别10/20地标的方法面临着可靠性和时间成本方面的问题。在这项研究中，我们提出了一个半自动的方法来解决这些问题。首先，一种新颖的头部表面重建算法从受试者头部上均匀且稀疏采样的一组点重建头部几何形状。其次，在计算空间中的重建的头部表面上确定虚拟10/20界标。最后，视觉引导的实时导航系统将实验者引导到受试者的物理头部上的每个识别的10/20地标。与传统的手动方法相比，我们提出的方法提供了一个显着的改善，在可靠性和时间成本，从而有助于提高10/20引导MRI自由探头放置的有效性和效率。
The International 10/20 system is an important head-surface-based positioning system for transcranial brain mapping techniques, e.g., fNIRS and TMS. As guidance for probe placement, the 10/20 system permits both proper ROI coverage and spatial consistency among multiple subjects and experiments in a MRI-free context. However, the traditional manual approach to the identification of 10/20 landmarks faces problems in reliability and time cost. In this study, we propose a semi-automatic method to address these problems. First, a novel head surface reconstruction algorithm reconstructs head geometry from a set of points uniformly and sparsely sampled on the subject's head. Second, virtual 10/20 landmarks are determined on the reconstructed head surface in computational space. Finally, a visually-guided real-time navigation system guides the experimenter to each of the identified 10/20 landmarks on the physical head of the subject. Compared with the traditional manual approach, our proposed method provides a significant improvement both in reliability and time cost and thus could contribute to improving both the effectiveness and efficiency of 10/20-guided MRI-free probe placement.