Transformation of whole-head MEG recordings between different sensor positions
Transformation of whole-head MEG recordings between different sensor positions
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DOI：
10.1515/bmte.2002.47.3.59
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发表时间：
2002-03-01
期刊：
影响因子：
--
通讯作者：
Knösche, TR
中科院分区：
文献类型：
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作者：
Knösche, TR
在这项工作中，提出了一种方法的转换MEG记录到一个标准的传感器位置。对于148通道磁强计阵列的情况下，该算法进行了评估，使用模拟以及幻影头记录。事实证明，该方法非常稳健，无论场发生器的位置如何，即使原始和标准（目标）传感器位置之间存在很大差异以及高噪声，也能产生准确的结果。该方法可以作为比较或平均不同受试者或会话的记录的先决条件。
In this work, a method is presented for the transformation of MEG recordings to a standard sensor position. For the case of an 148 channel magnetometer array, the algorithm was evaluated using simulations as well as phantom head recordings. It turned out that the method is very robust and yields accurate results regardless of the position of the field generator, even with large differences between original and standard (target) sensor positions and high noise. The method can be applied as a prerequisite for comparing or averaging recordings of different subjects or sessions.