視床立体脳波検査:安全性、精度、および視床皮質接続性
medRxiv : the preprint server for health sciences
|January 23, 2026
まとめ
てんかん患者における視床立体脳波検査(sEEG)は安全かつ正確であり、深部脳刺激(DBS)と同様の視床皮質接続性を提供する。これは個別化された標的設定への使用を支持する。
科学分野:
- 脳神経外科;てんかん学;神経科学
背景:
- てんかんの立体脳波検査(sEEG)における視床サンプリングへの関心の高まり。; 視床sEEGの安全性、精度、および核特異的コネクトミクス(前部、中心内側、視床後部)に関するデータは限られている。; てんかん深部脳刺激(DBS)との比較が必要である。
研究 の 目的:
- 視床sEEGの安全性、精度、および接続性を報告すること。; てんかんDBSの結果と比較して視床sEEGの結果を比較すること。; 特定の視床核(ANT、CM、PUL)の視床皮質接続性パターンを分析すること。
主な方法:
- 視床sEEGまたはDBSインプラントを有するてんかん患者の単一施設研究(2018-2024)。; sEEG(0.8mmリード)にはフレームレス立体定位またはロボットシステム、DBS(1.81mmカニューレ)にはリジッドフレームを使用した。;術後合併症、標的精度(Morelアトラス核への近接度)、および構造的コネクトーム解析による視床皮質接続性を評価した。
主要な成果:
- それぞれ109例および83例の患者に160本のsEEGリードおよび188本のDBSリードが移植された。; sEEG患者1例(0.9%)が症候性出血を起こした。; DBS患者8例が一時的な合併症を起こした。; 両者ともに優れた標的精度(sEEG中央値0.30mm、DBS 0.23mm)を示し、sEEGはより多くの外れ値(4% vs 0%)を示した。; sEEGおよびDBSコホート間で高度に一貫した視床皮質接続性パターン(Spearmanのρ=0.86-0.98)。; ANT、CM、PUL核の明確な接続性プロファイルが特定された。
結論:
- 視床sEEGは、DBSと比較して良好な安全性プロファイルと優れた標的精度を示す。; より小さいsEEGリード径がその安全性に寄与している可能性が高い。;一貫した明確な視床皮質接続性プロファイルは、視床sEEGを用いた個別化された標的設定戦略を支持する。
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