Use of simultaneous depth and MEG recording may provide complementary information regarding the epileptogenic region

作者：Kakisaka Yosuke^*; Kubota Yuichi; Wang Zhong I; Piao Zhe; Mosher John C; Gonzalez Martinez Jorge; Jin Kazutaka; Alexopoulos Andreas V; Burgess Richard C

来源：Epileptic Disorders, 2012, 14(3): 298-303.

DOI：10.1684/epd.2012.0517

• stereotactic electroencephalography
• magnetoencephalography
• simultaneous recording
• volume conduction
• quadratic fall-off

Simultaneous SEEG-MEG recording has the potential to define the epileptic spike source accurately. We present a case of a 55-year-old female with intractable left temporal lobe epilepsy in whom we evaluated the relationship between the amplitude recorded from SEEG electrodes, inserted in the lateral temporal region, and their distance from the MEG-modelled spike. We found a quadratic fall-off relationship between the amplitude and distance. This result supports the concept that the MEG dipoles reflect the "centre" of spike locations and may provide comprehensive information for SEEG which records spike activities directly but is inherently limited in spatial sampling.

• 出版日期2012-9