Using the International 10-20 EEG system for positioning of transcranial magnetic stimulation
Using the International 10-20 EEG system for positioning of transcranial magnetic stimulation
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DOI：
10.1023/b:brat.0000006333.93597.9d
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发表时间：
2003-12-01
期刊：
影响因子：
2.7
通讯作者：
Schönfeldt-Lecuona, C
中科院分区：
文献类型：
--
作者：
Herwig, U;Satrapi, P;Schönfeldt-Lecuona, C
背景资料：EEG电极放置的国际10-20系统越来越多地应用于认知神经科学和精神病治疗研究中的经颅磁刺激（TMS）定位。TMS研究中的关键问题仍然是线圈在颅骨上方的可靠定位，以瞄准所需的皮质区域。为了评估10-20系统的精度，我们使用神经导航测试了它在底层皮层上的投影。方法：在21名受试者中，通过10-20定位帽确定的10-20个位置F3、F4、T3、TP 3和P3进行立体定向。在Talairach图谱中确定了相应的单个解剖部位。结果如下：主要靶区为：F3 Brodmann区（BA）背外侧前额叶皮层内8/9，T3 BA上级颞回上22/42，TP 3 BA边缘上和角回区域40/39，P3 BA顶叶下7/40。然而，在大约10%的测量中，达到了相邻的和可能功能不同的BA。结论：使用10-20系统的TMS定位是适用于在较低的成本，并可能达到所需的皮质区域可靠的更大规模的水平。对于更细粒度的定位，可能的个体间差异，因此，神经影像学为基础的方法的应用，要考虑。
Background: The International 10-20 system for EEG electrode placement is increasingly applied for the positioning of transcranial magnetic stimulation (TMS) in cognitive neuroscience and in psychiatric treatment studies. The crucial issue in TMS studies remains the reliable positioning of the coil above the skull for targeting a desired cortex region. In order to asses the precision of the 10-20 system for this purpose, we tested its projections onto the underlying cortex by using neuronavigation. Methods: In 21 subjects, the 10-20 positions F3, F4, T3, TP3, and P3, as determined by a 10-20 positioning cap, were targeted stereotactically. The corresponding individual anatomical sites were identified in the Talairach atlas. Results: The main targeted regions were: for F3 Brodmann areas (BA) 8/9 within the dorsolateral prefrontal cortex, for T3 BA 22/42 on the superior temporal gyrus, for TP3 BA 40/39 in the area of the supramarginal and angular gyrus, and for P3 BA 7/40 on the inferior parietal lobe. However, in about 10% of the measurements adjacent and possibly functionally distinct BAs were reached. The ranges were mainly below 20 mm. Conclusion: Using the 10-20 system for TMS positioning is applicable at low cost and may reach desired cortex regions reliably on a larger scale level. For finer grained positioning, possible interindividual differences, and therefore the application of neuroimaging based methods, are to be considered.