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EEG Current Source Imaging using VEP Data Recorded inside a 3.0T MRI Magnet

최영환|김태성|이수열|한재용|임창완
대한의용생체공학회 (The Korea Society Of Medical & Biological Engineering)|2005.04|의공학회지 (Journal of biomedical Engineering Research)|제26권 제2호|pp. 95-99

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Abstract

We have performed EEG current source imaging on the cortical surface using visual evoked potentials (VEPs) recorded inside a 3.0 T MRI magnet. In order to remove ballistocardiogram (BCG) artifacts in the VEPs, an improved BCG template subtraction technique is devised. Using the cortically constrained current source imaging technique and pattern-reversal visual stimulations, we have obtained current source maps from 10 subjects. To validate the EEG current source imaging inside the magnet, we have compared the current source maps to the ones obtained outside the magnet. The experimental results demonstrate that there is a strong correspondence between the current source maps, proving that current source imaging is feasible with the evoked potentials recorded inside a 3.0 T MRI magnet.

참고문헌 (11)

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