JP2009502424A - 脳機能を評価する方法、および携帯型自動脳機能評価装置 - Google Patents
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Abstract
Description
wi,j=αi,jWi,jexp(jθi,j)
αi,j=exp(−0.75(Fij/Tmax)4
1.異なる目盛でウェーブレット係数を得るために信号をウェーブレット変換する。
2.係数を閾値化し、閾値δより小さいゼロに設定する。
3.元の信号に近づけるように逆ウェーブレット変換を行う。
Z=被験者値が通常の範囲内にある可能性
Claims (49)
- 被験者の神経状態を判断する方法であって、
電極セットを通して自発信号を取得するステップと、
取得した信号を処理するステップと、
処理した信号から所望の特性を抽出するステップと、
1つまたは複数の診断分類に抽出した特性を分類するステップとを含む、方法。 - 被験者の神経状態を判断する方法であって、
聴覚的、視覚的、電気的または他の刺激手段を使用して脳反応信号を誘発するステップと、
電極セットを通して誘発した信号を取得するステップと、
取得した信号を処理するステップと、
処理した信号から所望の特性を抽出するステップと、
抽出した特性を分類するステップとを含む、方法。 - 被験者の神経状態を判断する方法であって、
電極セットを通して自発および誘発信号を取得するステップと、
取得した信号を処理するステップと、
処理した信号から所望の特性を抽出するステップと、
抽出した特性を分類するステップとを含む、方法。 - 電極セットが19本未満の電極を含む、請求項3に記載の方法。
- 自発的信号が脳電図(EEG)信号を含む、請求項3に記載の方法。
- 誘発信号が聴覚性誘発電位(AEP)を含む、請求項3に記載の方法。
- 聴覚性誘発電位が、P100反応およびP300反応を含む、聴性脳幹反応(ABR)ポテンシャル、聴覚中潜在反応(AMLR)ポテンシャル、または聴覚遅延反応(ALR)ポテンシャルの少なくとも1つを含む、請求項6に記載の方法。
- 信号を処理するステップが、少なくとも1つのウェーブレットパケット雑音除去アルゴリズムを使用して、取得した信号を雑音除去するステップを含む、請求項3に記載の方法。
- 信号を処理するステップが、取得した信号からアーティファクトを取り除くステップを含む、請求項3に記載の方法。
- アーティファクトを取り除くステップが、取得した信号のアーティファクト部分を取り除くステップを含む、請求項9に記載の方法。
- アーティファクトを取り除くステップが、取得した信号からアーティファクトを除去するステップを含む、請求項9に記載の方法。
- 信号を処理するステップがさらに、取得した信号の二重階層状複素ウェーブレット変換を使用して信号をフィルタリングするステップを含む、請求項8に記載の方法。
- 特性を抽出するステップが、処理した信号に対してスペクトル分析および統計処理を行って特性を抽出するステップを含む、請求項3に記載の方法。
- 特性を抽出するステップが、特性を抽出するように処理した信号に対してウェーブレットパケット分析を行うステップを含む、請求項3に記載の方法。
- 特性を抽出するステップが、特性を抽出するように処理した信号に対して拡散幾何解析を行うステップを含む、請求項3に記載の方法。
- 特性を抽出するステップが、特性を抽出するように処理した信号に対してミクロ状態分析を行うステップを含む、請求項3に記載の方法。
- スペクトル分析を適用するステップが、処理した信号に高速フーリエ変換(FFT)を行って、信号を周波数帯域に分割するステップを含む、請求項10に記載の方法。
- 抽出した特性が、絶対および相対電力、対称、およびコヒーレンスを含む、請求項11に記載の方法。
- 特性を抽出するステップが、ウェーブレットパケットローカル判別ベースアルゴリズムを適用するステップを含む、請求項3に記載の方法。
- 分類するステップが、抽出した特性を1つまたは複数の診断分類に分類するように、抽出した特性に判別分析を適用するステップを含む、請求項3に記載の方法。
- 分類するステップが、被験者を1つまたは複数の診断分類に分類するように、抽出した特性にウェーブレットパケットを適用するステップを含む、請求項3に記載の方法。
- 分類に基づいて被験者の神経状態を判断するステップをさらに含む、請求項3に記載の方法。
- 判断するステップがさらに、神経状態が通常であるか異常であるかを判断するステップを含む、請求項22に記載の方法。
- 異常な神経状態が、本来は精神病理的または「非器質性」である、本来は器質性である、あるいは緊急または「警戒」状態であるかを判断するステップをさらに含む、請求項23に記載の方法。
- 緊急状態を構成する神経状態が、発作、異常脳幹反応、またはバースト抑制を含む、請求項24に記載の方法。
- 本来は器質性である異常な神経状態が、全体的または側方であるかどうかを判断するステップをさらに含む、請求項23に記載の方法。
- 判断を図形的に表示するステップと、
判断に基づいて脳の説明を図形的に表示するステップと、
判断に関連するデータを記憶するステップとをさらに含む、請求項3に記載の方法。 - プロセッサと、
プロセッサに動作可能に結合され、1つまたは複数の操作指示を記憶しているメモリと、
プロセッサに動作可能に結合され、被験者に配置された1式の電極を通して外部電気信号を受けるように構成された多チャンネル入出力インターフェイスとを備えた、被験者の神経状態を診断する装置であって、
プロセッサが多チャンネル入出力インターフェイスから受けた信号上で1つまたは複数の操作を行うように1つまたは複数の操作指示を利用するように構成されている、装置。 - ディスプレイ装置をさらに備え、
ディスプレイ装置がプロセッサに動作可能に接続され、プロセッサがさらに、ディスプレイ装置上に1つまたは複数の動作の結果を表示するように構成されている、請求項28に記載の装置。 - 受信した外部信号を通信するように、多チャンネル入出力インターフェイスおよびプロセッサに動作可能に接続された双方向通信チャンネルをさらに備えた、請求項28に記載の装置。
- 多チャンネル入出力インターフェイスに動作可能に接続された低電圧多チャンネル前置増幅器をさらに備えた、請求項28に記載の装置。
- 低電圧多チャンネル前置増幅器が高い耐雑音性を有する、請求項31に記載の装置。
- 多チャンネル入出力インターフェイスが、脳波計検査インターフェイス、および聴覚性誘発電位検査インターフェイスを含んでおり、
プロセッサが、脳波計検査処理、聴覚性誘発電位検査処理、およびその組合せからなるグループから選択された聴覚検査に対する1つまたは複数の記憶した操作指示で構成されている、請求項28に記載の装置。 - プロセッサが内部メモリを有し、プロセッサが受信した外部信号を処理するように1つまたは複数の操作指示を実行するのに内部メモリを利用するように構成されている、請求項28に記載の装置。
- 操作指示が、
外部信号を処理するための指示と、
外部信号から特性を抽出するための指示と、
抽出した特性に基づき被験者を分類するための指示と、
分類に基づいて被験者の神経状態を判断するための指示とを含む、請求項28に記載の装置。 - 外部信号を処理するための指示が、受信した外部信号をフィルタリングするための指示を含む、請求項35に記載の装置。
- フィルタリングが、受信した外部信号の二重階層状複素ウェーブレット変換を使用するステップを含む、請求項36に記載の装置。
- 1式の電極が、被験者の額の上に配置された複数本の電極と、被験者の耳の少なくとも一方に配置された少なくとも1本の電極とを備えている、請求項28に記載の装置。
- 被験者内で聴覚ポテンシャルを誘発するように、多チャンネル入出力インターフェイスに動作可能に接続された刺激装置をさらに備えた、請求項28に記載の装置。
- 装置が、手持ち式エンクロージャ内に格納されている、請求項28に記載の装置。
- 多チャンネル入出力インターフェイスがさらに、無線多チャンネル入出力インターフェイスを備えている、請求項28に記載の装置。
- 異常な精神状態に苦しむ患者の緊急神経診断を行うキットであって、
請求項28に記載の装置と、
装置を使用するための説明書と、
装置用の携帯型持ち運びケースとを備えた、キット。 - 自動脳機能評価を行う装置であって、
電極セットと、
多チャンネル入出力インターフェイスを通して電極セットと動作可能に接続されたプロセッサと、
プロセッサに動作可能に接続されたディスプレイと、
プロセッサに動作可能に接続されたユーザインターフェイスと、
被験者の脳機能のリアルタイムの評価を行うための指示、およびウェーブレットパケットアルゴリズムを使用して電極セットによって取得した信号を処理するための指示を含む内部メモリとを備えた、装置。 - 患者の脳機能のトリアージ評価を行う方法であって、
患者の自発脳活動を測定するステップと、
患者を刺激し、誘発した脳活動をそこから測定するステップと、
ウェーブレットパケットアルゴリズムを使用してリアルタイムで自発および誘発脳活動を処理するステップと、
処理した脳活動に基づき患者のトリアージ評価を行うステップとを含む、方法。 - 評価を処理するおよび行うステップが、携帯型手持ち式装置によって行われる、請求項44に記載の方法。
- 電極セットと、
電極セットに動作可能に接続された増幅器と、
増幅器に動作可能に接続され、ウェーブレットを使用して電極セットによって取得された外部信号を処理するように構成されたプロセッサとを備えた、トリアージ装置。 - 電極セットが、19本未満の電極を備えている、請求項40に記載のトリアージ装置。
- ウェーブレットを使用して、取得した自発および誘発信号を処理するように構成されたプロセッサを備えた、神経トリアージ装置。
- 約600g未満の重さの手持ち式携帯型装置を備えた、脳評価を行う装置。
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US11/195,001 US7904144B2 (en) | 2005-08-02 | 2005-08-02 | Method for assessing brain function and portable automatic brain function assessment apparatus |
PCT/US2006/028985 WO2007016149A2 (en) | 2005-08-02 | 2006-07-26 | Automatic brain function assessment apparatus and method |
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CN101500471A (zh) | 2009-08-05 |
EP1909643A2 (en) | 2008-04-16 |
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WO2007016149A2 (en) | 2007-02-08 |
CA2616974C (en) | 2016-10-04 |
EP1909643A4 (en) | 2010-03-24 |
CA2939790C (en) | 2017-01-17 |
HK1219217A1 (zh) | 2017-03-31 |
EP1909643B1 (en) | 2016-03-30 |
JP5829699B2 (ja) | 2015-12-09 |
WO2007016149A3 (en) | 2009-04-23 |
CA2616974A1 (en) | 2007-02-08 |
IL189163A0 (en) | 2008-08-07 |
US7904144B2 (en) | 2011-03-08 |
US20070032737A1 (en) | 2007-02-08 |
CA2939790A1 (en) | 2007-02-08 |
CN105520732B (zh) | 2019-06-25 |
KR20080068003A (ko) | 2008-07-22 |
CN105520732A (zh) | 2016-04-27 |
AU2006275864A1 (en) | 2007-02-08 |
US20110125048A1 (en) | 2011-05-26 |
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