JP2014515954A - 麻酔投与中の脳の状態を追跡するシステム及び方法 - Google Patents
麻酔投与中の脳の状態を追跡するシステム及び方法 Download PDFInfo
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Abstract
【選択図】図1
Description
−ピーク周波数は、大まかに一定である。幾つかの例では、ピーク周波数において僅かな減少が見られる。
−ピーク強度は、増大する。
−帯域幅は、大まかに一定である。
−ピーク周波数は、減少する。
−ピーク強度は、減少する。
−帯域幅は、大まかに一定である。
−広帯域γは、明白なスペクトル・ピークを持たない。
−強度は、減少する。
−ピーク周波数及び帯域幅は、大まかに変化しない。
−無意識及び深いピークの強度は、減少し、それらの間の差は、年齢とともに増大する。
−無意識及び深いピーク両方のピーク周波数、強度、及び帯域幅は、年齢とともに減少する。
−広帯域ピークの強度は、およそ40Hzにおけるそれらの間の強度で差異が無いために、減少する。
−ピーク周波数は、大まかに一定である。
−ピーク強度は、増大する。
−帯域幅は、僅かに減少する。
−ピーク周波数、強度、及び帯域幅は、減少する。
−ピーク周波数は、大まかに変化しない。
−帯域幅は、僅かに減少する。
−無意識及び深いピークの両方の強度は、減少し、それらが無意識及び深い睡眠状態に渡って同じ強度を持つために、それらの差異は、僅かに減少する。
−無意識及び深いピークの両方におけるピーク周波数、強度、及び帯域幅は、減少し、それらの値の間の差異は、増大する。
−ピーク周波数は、大まかに一定である。
−ピーク強度は、増大する。
−帯域幅は、僅かに減少する。
−ピーク周波数、強度、及び帯域幅は、減少する。
−ピーク周波数は、大まかに変化しない。
−帯域幅は、僅かに減少する。
−無意識と深いピークの両方の強度は、減少し、それらの間の差異は、それらが無意識及び深い睡眠状態に渡って同じ強度を持つために、それらの差異は、僅かに減少する。
−ピーク周波数は、減少し、それらの値の間の差異は、増大する。
−無意識と深いピークの両方の強度は、減少し、それらの間の差異は、それらが無意識及び深い睡眠状態に渡って同じ強度を持つために、それらの差異は、僅かに減少する。
−帯域幅は、僅かに減少する。
−ピーク周波数は、大まかに一定である。
−ピーク強度は、増大する。
−帯域幅は、大まかに一定である。
−ピーク周波数は、高いα/低いσ(スピンドル)領域に残ったままにも関わらず減少する。
−ピーク強度は、減少する。
−帯域幅は、大まかに一定である。
−広帯域γは、明白なスペクトル・ピークを持たない。
−強度は、減少する。
−ピーク周波数は、大まかに一定である。
−ピーク強度は、減少する。
−帯域幅は、大まかに一定である。
−ピーク周波数と強度は、減少する。
−帯域幅は、大まかに一定である。
−広帯域γは、明白なスペクトル・ピークを持たない。
−強度は増大する。
20 ユーザインタフェース
504 スペクトル写真
Claims (21)
- 麻酔効果を持つ少なくとも1種類の薬剤の投与が行われている患者を監視するシステムであって、前記システムは、
前記患者から生理学的データを取得する複数のセンサと、
少なくとも1つのプロセッサであって、
前記生理学的データを前記患者の原点位置に関連付けられた時系列データセットに組み入れ、
前記各々の時系列データセットをスペクトル情報に変換し、
前記時系列データセットに関連付けられた前記原点位置に関するコヒーレンス情報を判断し、
前記患者の現在の状態と予想される将来の状態のうち少なくとも1つを示す前記スペクトル情報及び前記コヒーレンス情報の少なくとも1つの中からシグネチャを識別し、そして
前記薬剤により誘発された前記患者の現在の状態と予想される将来の状態のうち少なくとも1つに関係する情報を含む前記シグネチャを利用してレポートを生成する、ことを含む少なくとも1つのプロセッサと、を有する
ことを特徴とするシステム。 - 前記レポートが、前記薬剤の投与を受ける前記患者の異なる状態における時空間活動を示す、ことを特徴とする請求項1記載のシステム。
- 前記少なくとも1つのプロセッサは、少なくとも1つの時系列データセットにおいて、活動の振幅包絡線を分析して、選択された周波数において低周波リズムの位相に基づいて最大値を識別することを更に含む、ことを特徴とする請求項1記載のシステム。
- 前記プロセッサは、時間分解法で位相振幅結合を測定するモジュログラム分析を実施して、前記薬剤を投与された前記患者の状態に対応する位相振幅結合の変調を識別することを含む、ことを特徴とする請求項1記載のシステム。
- 前記プロセッサは、前記モジュログラム分析を実施する複数のセンサのいくつかによって取得されたデータの空間的かつ局所化した平均値のうち少なくとも1つを判断することを更に含む、ことを特徴とする請求項4記載のシステム。
- 前記プロセッサは、前記患者の少なくとも1つの特徴と、前記麻酔効果を持つ少なくとも1つの薬剤における指標と、を受信し、前記指標に基づいて前記シグネチャを識別することを更に含む、ことを特徴とする請求項1記載のシステム。
- 前記指標には、前記患者の年齢と、
プロポフォール、エトミデート、バルビツール酸系化合物、チオペンタール、ペントバルビタール、フェノバルビタール、メトヘキシタール、ベンゾジアゼピン系化合物、ミダゾラム、ジアゼパム、ロラゼパム、デクスメデトミジン、ケタミン、セボフルラン、イソフルラン、デスフルラン、レミフェンタニル、フェンタニール、スフェンタニル、アルフェンタニルを含むグループから選択された薬剤と、
薬剤の投与タイミング、薬剤の投与量、及び薬剤の投与率を含む薬剤の投与情報と、
のうち少なくとも1つが含まれる、
ことを特徴とする請求項6記載のシステム。 - 前記プロセッサは、前記患者を前記スペクトル情報及び前記コヒーレンス情報に基づいて所定の行動力学を示すものとして特徴付ける動的ベイジアン処理を実行することを含む、ことを特徴とする請求項1記載のシステム。
- 前記行動力学は、意識喪失と意識の回復のうち少なくとも1つを含む、ことを特徴とする請求項8記載のシステム。
- 前記複数のセンサには、脳波計(EEG)センサと、心拍計と、血圧計と、電気皮膚反応(GSR)と、を監視するように構成されたセンサと、のうち少なくとも1つが含まれる、ことを特徴とする請求項1記載のシステム。
- 前記各々の時系列データセットをスペクトル写真に変換し、かつ前記患者の現在の状態と予想される将来の状態のうち少なくとも1つを示す前記スペクトル情報及び前記コヒーレンス情報のうち少なくとも1つのうちでシグネチャを識別することを更に含む、ことを特徴とする請求項1記載のシステム。
- 麻酔効果を持つ少なくとも1種類の薬剤の投与が行われている患者を監視するシステムであって、前記システムは、
前記患者から生理学的データを取得する複数のセンサと、
前記患者の少なくとも1つの特徴及び前記麻酔効果を持つ少なくとも1つの薬剤の指標を受信するユーザインタフェースと、
少なくとも1つのプロセッサであって、
前記指標に基づいて前記患者の現在の状態と予想される将来の状態のうち少なくとも1つを示すシグネチャ・プロファイルを識別し、
前記生理学的データを時系列データセットに組み入れ、
前記識別されたシグネチャ・プロファイルを利用して前記時系列データセットを分析し、
前記薬剤により誘発された前記患者の現在の状態及び予想される将来の状態のうち少なくとも1つと関係する情報を含むレポートを生成する、ことを含む少なくとも1つのプロセッサと、を有する、
ことを特徴とするシステム。 - 前記プロセッサは、前記患者の原点位置に基づき前記生理学的データを前記時系列データセットに組み入れることを含む、ことを特徴とする請求項12記載のシステム。
- 前記プロセッサは、前記時系列データセットに関連付けられた前記原点位置に関するコヒーレンス情報を判断し、前記識別されたシグネチャ・プロファイルを利用して前記コヒーレンス情報を分析して、前記患者の現在の状態と予想される将来の状態のうち少なくとも1つを判断する、ことを更に含む、ことを特徴とする請求項12記載のシステム。
- 前記プロセッサは、前記各々の時系列データセットをスペクトル写真に変換し、前記識別されたシグネチャ・プロファイルを利用して前記スペクトル写真を分析して、前記患者の現在の状態と予想される将来の状態のうち少なくとも1つを判断する、ことを更に含む、ことを特徴とする請求項12記載のシステム。
- 前記レポートが、前記薬剤を投与された前記患者の異なる状態における時空間活動を示す、ことを特徴とする請求項12記載のシステム。
- 前記少なくとも1つのプロセッサは、少なくとも1つの前記時系列データセットにおける、活動の振幅包絡線を分析して、選択された周波数において低周波リズムの位相に基づいて最大値を識別する、ことを更に含む、ことを特徴とする請求項12記載のシステム。
- 前記プロセッサは、時間分解法で位相振幅結合を測定するモジュログラム分析を実施して、前記薬剤を投与された前記患者の状態に対応する位相振幅結合の変調を識別する、ことを含む、ことを特徴とする請求項12記載のシステム。
- 前記指標には、前記少なくとも1つの患者の年齢と、
プロポフォール、エトミデート、バルビツール酸系化合物、チオペンタール、ペントバルビタール、フェノバルビタール、メトヘキシタール、ベンゾジアゼピン系化合物、ミダゾラム、ジアゼパム、ロラゼパム、デクスメデトミジン、ケタミン、セボフルラン、イソフルラン、デスフルラン、レミフェンタニル、フェンタニール、スフェンタニル、アルフェンタニルを含むグループから選択された薬剤と、
薬剤の投与タイミング、薬剤の投与量、及び薬剤の投与率を含む薬剤の投与情報と、
のうち少なくとも1つが含まれる、
ことを特徴とする請求項12記載のシステム。 - 前記プロセッサは、前記患者を所定の行動力学を示すものとして特徴付けるための動的ベイジアン処理を実行することを含む、ことを特徴とする請求項12のシステム。
- 前記行動力学は、意識喪失と意識の回復のうち少なくとも1つを含む、ことを特徴とする請求項19記載のシステム。
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US20190117085A1 (en) | 2019-04-25 |
WO2012154701A1 (en) | 2012-11-15 |
US11751770B2 (en) | 2023-09-12 |
EP2704630B1 (en) | 2023-07-26 |
JP6109155B2 (ja) | 2017-04-05 |
EP2704630A1 (en) | 2014-03-12 |
US20140187973A1 (en) | 2014-07-03 |
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