JP6072005B2 - 信号の加算平均 - Google Patents
信号の加算平均 Download PDFInfo
- Publication number
- JP6072005B2 JP6072005B2 JP2014509479A JP2014509479A JP6072005B2 JP 6072005 B2 JP6072005 B2 JP 6072005B2 JP 2014509479 A JP2014509479 A JP 2014509479A JP 2014509479 A JP2014509479 A JP 2014509479A JP 6072005 B2 JP6072005 B2 JP 6072005B2
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- JP
- Japan
- Prior art keywords
- signal
- signals
- template
- data
- analysis system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- 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
- A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
- A61B5/327—Generation of artificial ECG signals based on measured signals, e.g. to compensate for missing leads
-
- 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
- A61B5/7235—Details of waveform analysis
-
- 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
- A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
- A61B5/346—Analysis of electrocardiograms
- A61B5/349—Detecting specific parameters of the electrocardiograph cycle
- A61B5/35—Detecting specific parameters of the electrocardiograph cycle by template matching
-
- 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
- A61B5/7203—Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal
-
- 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
- A61B5/7271—Specific aspects of physiological measurement analysis
- A61B5/7278—Artificial waveform generation or derivation, e.g. synthesising signals from measured signals
-
- 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
- A61B5/25—Bioelectric electrodes therefor
- A61B5/279—Bioelectric electrodes therefor specially adapted for particular uses
- A61B5/28—Bioelectric electrodes therefor specially adapted for particular uses for electrocardiography [ECG]
- A61B5/282—Holders for multiple electrodes
-
- 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
- A61B5/25—Bioelectric electrodes therefor
- A61B5/279—Bioelectric electrodes therefor specially adapted for particular uses
- A61B5/28—Bioelectric electrodes therefor specially adapted for particular uses for electrocardiography [ECG]
- A61B5/283—Invasive
- A61B5/287—Holders for multiple electrodes, e.g. electrode catheters for electrophysiological study [EPS]
-
- 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
- A61B5/7221—Determining signal validity, reliability or quality
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2218/00—Aspects of pattern recognition specially adapted for signal processing
- G06F2218/02—Preprocessing
- G06F2218/04—Denoising
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2218/00—Aspects of pattern recognition specially adapted for signal processing
- G06F2218/12—Classification; Matching
- G06F2218/14—Classification; Matching by matching peak patterns
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Public Health (AREA)
- Molecular Biology (AREA)
- Veterinary Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Animal Behavior & Ethology (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Surgery (AREA)
- Cardiology (AREA)
- Signal Processing (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Artificial Intelligence (AREA)
- Psychiatry (AREA)
- Physiology (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Description
式中、
Tiは、Tのi番目の列(たとえば、チャネル番号iのテンプレートのECG)である。TPCA1は、サイズがNT×1のものである。
式中、
Aiは、Aのi番目の列(たとえば、チャネル番号iのECG)である。APCA1のサイズはNSx1である。これらの結果から、最適化されたテンプレートおよび仮想リードECG信号が得られ、その各々が単一チャネルに対応している。上述したように、図10に示すグラフ650は、は、固有値と、固有ベクトル652および654との例を示している。
Claims (13)
- センサーによって検出される、複数の電気生体信号のサブセットに対応する測定データを受信し、
前記測定データのテンプレート領域を選択し、
前記測定データについて主成分分析(PCA)を実施して入力チャネルのサブセットから単一チャネルを求め、前記選択されたテンプレート領域について主成分分析(PCA)を実施して最適化されたテンプレートを求め、
前記単一チャネルおよび前記最適化されたテンプレートの相互相関を計算して、前記単一チャネルの着目領域(ROI)を決定し、
前記単一チャネルにおけるピーク相関係数を検出し、
前記単一チャネルの前記ROI各々の振幅を前記最適化されたテンプレートと比較して、前記最適化されたテンプレートと前記単一チャネルの各ROIとの間で誤差を求め、
前記ピーク相関係数と前記誤差とに基づいて前記ROIの各々に対する平均を計算して、前記複数の信号に対する加算平均化データを作成することを含む、信号解析システムの作動方法。 - 前記複数の信号各々について信号品質の低い領域を検出し、
信号品質の低い被検出領域に基づいて、前記複数の信号のうちのどれが、前記PCAの実施から除外される粗悪チャネルと関連しているかを判断することをさらに含む、請求項1に記載の信号解析システムの作動方法。 - 前記加算平均化データを臓器の表面にマッピングして、前記臓器の電気活動を再構成することをさらに含む、請求項1に記載の信号解析システムの作動方法。
- 前記マップ型の加算平均化データに基づいて、電位マップおよび等時線マップのうちの一方を作成することをさらに含む、請求項3に記載の信号解析システムの作動方法。
- 前記複数の信号は、患者の体表面から同時に取得された少なくとも200の信号を含み、前記加算平均化データは、前記少なくとも200の信号のサブセットに対してコンピューター計算された信号加算平均化データを含む、請求項1に記載の信号解析システムの作動方法。
- 前記複数の信号は各々、心電図(ECG)信号を表す、請求項5に記載の信号解析システムの作動方法。
- 前記テンプレートは、P波を規定する、請求項5に記載の信号解析システムの作動方法。
- 前記複数の信号は、患者から非侵襲的に取得される、請求項1に記載の信号解析システムの作動方法。
- 前記複数の信号は、患者から侵襲的に取得される、請求項1に記載の信号解析システムの作動方法。
- 前記主成分分析は、前記複数の信号の適切なサブセットを含む検知ゾーンに対応するデータに対して実施され、前記加算平均は、前記複数の信号に対して実施される、請求項1に記載の信号解析システムの作動方法。
- 前記複数の信号の前記サブセットから相関ノイズを検出し、除去することをさらに含む、請求項1に記載の信号解析システムの作動方法。
- 信号解析システムに、請求項1〜11に記載の作動方法を実行させるためのプログラム。
- 請求項12に記載のプログラムを記録したコンピュータ読み取り可能な記録媒体。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201161482345P | 2011-05-04 | 2011-05-04 | |
US61/482,345 | 2011-05-04 | ||
PCT/US2012/036543 WO2012151498A2 (en) | 2011-05-04 | 2012-05-04 | Signal averaging |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2014512925A JP2014512925A (ja) | 2014-05-29 |
JP6072005B2 true JP6072005B2 (ja) | 2017-02-01 |
Family
ID=47108249
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2014509479A Expired - Fee Related JP6072005B2 (ja) | 2011-05-04 | 2012-05-04 | 信号の加算平均 |
Country Status (4)
Country | Link |
---|---|
US (1) | US9504427B2 (ja) |
EP (1) | EP2704628B1 (ja) |
JP (1) | JP6072005B2 (ja) |
WO (1) | WO2012151498A2 (ja) |
Families Citing this family (31)
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EP2863793A1 (en) | 2012-06-20 | 2015-04-29 | Boston Scientific Scimed, Inc. | Far-field vs local activation discrimination on multi-electrode egms using vector analysis in multi-dimensional signal space |
US9681817B2 (en) | 2012-12-20 | 2017-06-20 | Boston Scientific Scimed, Inc. | Suppression of global activation signals during anatomical mapping |
US9439578B2 (en) | 2012-12-27 | 2016-09-13 | Boston Scientific Scimed, Inc. | Artifact cancellation to suppress far-field activation during electrophysiology mapping |
JP2014128425A (ja) * | 2012-12-28 | 2014-07-10 | Fukuda Denshi Co Ltd | 心電図情報処理装置、心電図情報処理方法、および心電図情報処理プログラム |
JP2014128424A (ja) * | 2012-12-28 | 2014-07-10 | Fukuda Denshi Co Ltd | 心電図検査装置、心電図検査方法、および心電図検査プログラム |
US20160256063A1 (en) * | 2013-09-27 | 2016-09-08 | Mayo Foundation For Medical Education And Research | Analyte assessment and arrhythmia risk prediction using physiological electrical data |
WO2015120064A1 (en) * | 2014-02-04 | 2015-08-13 | Cardioinsight Technologies, Inc. | Integrated analysis of electrophysiological data |
CN106456036A (zh) | 2014-06-03 | 2017-02-22 | 波士顿科学医学有限公司 | 用于映射心脏组织的医疗装置 |
JP6564189B2 (ja) * | 2015-01-09 | 2019-08-21 | 国立研究開発法人国立循環器病研究センター | 心臓カテーテル検査装置、心臓カテーテル検査システム、及び心臓カテーテル検査装置の作動方法 |
CN105899268B (zh) * | 2015-06-23 | 2019-02-15 | 中国科学院深圳先进技术研究院 | 基于gpu的并行心电信号分析方法 |
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JP6694733B2 (ja) * | 2016-02-26 | 2020-05-20 | 日本光電工業株式会社 | 誘発電位測定装置 |
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JP6999895B2 (ja) * | 2017-07-06 | 2022-01-19 | 株式会社島津製作所 | 放射線撮影装置および放射線画像検出方法 |
JP2017209551A (ja) * | 2017-09-06 | 2017-11-30 | フクダ電子株式会社 | 心電図処理装置および心電図処理プログラム |
JP7249542B2 (ja) * | 2018-03-13 | 2023-03-31 | パナソニックIpマネジメント株式会社 | 電気反応計測装置、電気反応処理方法及びプログラム |
CN109770861B (zh) * | 2019-03-29 | 2022-04-12 | 广州视源电子科技股份有限公司 | 心电节律模型的训练及检测方法、装置、设备和存储介质 |
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-
2012
- 2012-05-04 US US14/115,235 patent/US9504427B2/en active Active
- 2012-05-04 EP EP12779596.1A patent/EP2704628B1/en active Active
- 2012-05-04 WO PCT/US2012/036543 patent/WO2012151498A2/en active Application Filing
- 2012-05-04 JP JP2014509479A patent/JP6072005B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
WO2012151498A2 (en) | 2012-11-08 |
EP2704628A2 (en) | 2014-03-12 |
EP2704628A4 (en) | 2014-10-08 |
WO2012151498A3 (en) | 2013-01-17 |
US9504427B2 (en) | 2016-11-29 |
US20140067279A1 (en) | 2014-03-06 |
EP2704628B1 (en) | 2019-12-25 |
JP2014512925A (ja) | 2014-05-29 |
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