Automatic alignment of scalp electrode positions with head MRIvolume and its evaluation

摘要

This paper presents a technique for the fully automatic alignmentof brain functional data, whose acquisition requires placing electrodeson the scalp (e.g. EEG, SEP, MEG), with MRI data of this head. Themethod does not require any external fiducial markers to be mounted on apatient's head. It uses geometrical features derived from intrinsicobject data to guide the alignment. Thus, it is comfortable, especiallyin numerous clinical examinations. The performance of the algorithm wasevaluated in Monte Carlo multiple alignment trials for 4 human heads