JP2011031061A - Eeg/megおよびecg/mcgのためのオンラインのソース再構築 - Google Patents
Eeg/megおよびecg/mcgのためのオンラインのソース再構築 Download PDFInfo
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- 238000000034 method Methods 0.000 claims abstract description 20
- 238000005259 measurement Methods 0.000 claims abstract description 16
- 230000008569 process Effects 0.000 claims abstract description 10
- 238000012545 processing Methods 0.000 claims abstract description 10
- 238000004891 communication Methods 0.000 claims 2
- 238000012360 testing method Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 7
- 238000001514 detection method Methods 0.000 description 5
- 230000035484 reaction time Effects 0.000 description 5
- 238000013155 cardiography Methods 0.000 description 4
- 210000004027 cell Anatomy 0.000 description 3
- 230000001037 epileptic effect Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 238000012935 Averaging Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000003745 diagnosis Methods 0.000 description 2
- 230000000763 evoking effect Effects 0.000 description 2
- 210000002064 heart cell Anatomy 0.000 description 2
- 230000004807 localization Effects 0.000 description 2
- 238000013507 mapping Methods 0.000 description 2
- 238000002610 neuroimaging Methods 0.000 description 2
- 210000002569 neuron Anatomy 0.000 description 2
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- 230000003542 behavioural effect Effects 0.000 description 1
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- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 206010015037 epilepsy Diseases 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000005055 memory storage Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001537 neural effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000003238 somatosensory effect Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/316—Modalities, i.e. specific diagnostic methods
- A61B5/369—Electroencephalography [EEG]
- A61B5/377—Electroencephalography [EEG] using evoked responses
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/242—Detecting biomagnetic fields, e.g. magnetic fields produced by bioelectric currents
- A61B5/245—Detecting biomagnetic fields, e.g. magnetic fields produced by bioelectric currents specially adapted for magnetoencephalographic [MEG] signals
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Abstract
【解決手段】一実施形態では、本発明は、患者から電磁信号を集めるために用いられるセンサと、信号処理システムと、コンピュータ・システムとからなる、EEGシステムを含む。このコンピュータ・システムは、実行の多重のスレッドをサポートするように構成されている。一実施形態では、コンピュータ・システムは、データが濾波されかつある場合には平均化される、測定モジュールである実行の第1のスレッドを起動する。一般に、データは、ある特定の反応時間の間濾波される。一度データが濾波されて平均化されるとその結果は、試行のためにソース再構築の生成を進行させるソース再構築モジュールである、実行の第2のスレッドに与えられる。測定モジュールは、次に、最新の試行についてソース再構築が実行される一方で、新しい試行から新しい電磁データを取得して処理する。
【選択図】図1
Description
本発明は、電磁信号が取得された後に、電磁信号が殆ど直ちにソース再構築を受ける、オンラインでソース再構築を実行する方法および装置である。
構成は、取得した電磁信号の品質を向上するために、修正されることができる。
ル、固定ダイポール、または領域ダイポールおよび電磁的活動の電磁場分布を記述する、数学的公式の使用により活動のソースを決定するように試みる、モデルを創造するような、電磁的活動の型式を決定することに関連している。これらのモデルは、一般に、ソースの位置と方向、電磁信号をピックアップするセンサの位置と方向、および幾何学と細胞の体積伝導率(頭部または胸部)の伝導特性に依存する。業界では周知の幾つかのモデルがあり、これらは、同心球体、境界要素法(BEM)および有限要素法(FEM)の3つの体積伝導率モデルを含む。
Claims (6)
- 生理学的電磁信号を取得するセンサと、
前記センサと交信する信号処理回路と、
前記信号処理回路と交信するプロセッサであって、1つのスレッドが測定モジュールであり、第2のスレッドがソース再構築モジュールである、マルチスレッドを実行できるように構成されるプロセッサと、
前記センサによる前記生理学的電磁信号の取得のプロセスのパラメータを制御するフィードバック・ループと
を備える装置。 - 請求項1に記載の装置であって、
解剖学的データ上に重畳したソース再構築結果を表示するディスプレイをさらに備える装置。 - 請求項1に記載の装置であって、前記センサは、MEGデータを取得する、装置。
- 請求項1に記載の装置であって、前記センサは、EEGデータを取得する、装置。
- 請求項1に記載の装置であって、前記センサは、ECGデータを取得する、装置。
- 請求項1に記載の装置であって、前記センサは、MCGデータを取得する、装置。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US44323403P | 2003-01-27 | 2003-01-27 | |
US60/443,234 | 2003-01-27 |
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JP2006503110A Division JP4644184B2 (ja) | 2003-01-27 | 2004-01-27 | Eeg/megおよびecg/mcgのためのオンラインのソース再構築 |
Publications (2)
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JP2011031061A true JP2011031061A (ja) | 2011-02-17 |
JP5351121B2 JP5351121B2 (ja) | 2013-11-27 |
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JP2006503110A Expired - Lifetime JP4644184B2 (ja) | 2003-01-27 | 2004-01-27 | Eeg/megおよびecg/mcgのためのオンラインのソース再構築 |
JP2010232708A Expired - Fee Related JP5351121B2 (ja) | 2003-01-27 | 2010-10-15 | Eeg/megおよびecg/mcgのためのオンラインのソース再構築 |
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JP2006503110A Expired - Lifetime JP4644184B2 (ja) | 2003-01-27 | 2004-01-27 | Eeg/megおよびecg/mcgのためのオンラインのソース再構築 |
Country Status (21)
Country | Link |
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US (2) | US7840248B2 (ja) |
EP (2) | EP1590037B1 (ja) |
JP (2) | JP4644184B2 (ja) |
KR (1) | KR101080881B1 (ja) |
CN (1) | CN1744927B (ja) |
AT (1) | ATE500862T1 (ja) |
AU (1) | AU2004208344B2 (ja) |
BR (1) | BRPI0406873B1 (ja) |
CA (1) | CA2513098C (ja) |
DE (1) | DE602004031712D1 (ja) |
DK (1) | DK1590037T3 (ja) |
ES (1) | ES2360219T3 (ja) |
IL (1) | IL169667A (ja) |
IS (1) | IS7950A (ja) |
MX (1) | MXPA05007902A (ja) |
NO (1) | NO20053976D0 (ja) |
NZ (1) | NZ541620A (ja) |
PL (1) | PL376467A1 (ja) |
RU (1) | RU2364329C2 (ja) |
WO (1) | WO2004068313A2 (ja) |
ZA (1) | ZA200505638B (ja) |
Cited By (1)
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JP2018153614A (ja) * | 2017-03-17 | 2018-10-04 | 株式会社リコー | 情報処理装置、情報処理方法、プログラムおよび生体信号計測システム |
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