皮質電極を用いた難治性てんかん脳波のコネクティビティ解析

• 吉岡 康人

• 吉田 久

• 宮内 正晴

• 中野 直樹

• 加藤 天美

書誌事項

タイトル別名

• Connectivity Analysis of Electrocorticography Signals in Intractable Epilepsy

抄録

Epilepsy prevalence is up to about 1% of the population. 25% of these patients have intractable epilepsy. For these patients however, surgery is an effective treatment, therefore accurately determining the propagation path and epileptic foci is a crucial factor in surgical treatment.In this study, we propose a method to analyze connectivity among the brain signals during epileptiform seizure which were recorded from the electrodes directly placed on the cortex. First, we obtained the delay time and maximum value of the correlation function and defined connectivity strength between channels by a linear combination of the two. Then, using the connectivity strength, we configured a minimum spanning tree, which was estimated to be the epilepsy propagation path. As a result, the foci of epilepsy moved slightly for a total of four times for each seizure in the same patient; different propagation paths of the seizure at different times was shown.

収録刊行物

• 生体医工学

  生体医工学 52 (Supplement), O-367-O-368, 2014

  公益社団法人 日本生体医工学会

詳細情報

• CRID: 1390282680244083840
• NII論文ID: 130004695833
• DOI: 10.11239/jsmbe.52.o-367
• ISSN: 18814379
• ISSN: 1347443X
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可