JP6182665B2 - ベクトル場を用いた電気生理学的マッピング中の活動パターンの表示及び特定のためのカテーテルシステム - Google Patents
ベクトル場を用いた電気生理学的マッピング中の活動パターンの表示及び特定のためのカテーテルシステム Download PDFInfo
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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
- A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
- A61B5/339—Displays specially adapted therefor
- A61B5/341—Vectorcardiography [VCG]
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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
- A61B5/25—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]
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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
-
- 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]
- A61B5/321—Accessories or supplementary instruments therefor, e.g. cord hangers
- A61B5/322—Physical templates or devices for measuring ECG waveforms, e.g. electrocardiograph rulers or calipers
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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
- A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
- A61B5/339—Displays specially adapted therefor
-
- 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
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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
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6846—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
- A61B5/6847—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive mounted on an invasive device
- A61B5/6852—Catheters
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61B5/7246—Details of waveform analysis using correlation, e.g. template matching or determination of similarity
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- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B18/1492—Probes or electrodes therefor having a flexible, catheter-like structure, e.g. for heart ablation
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- A—HUMAN NECESSITIES
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- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
- A61B2018/00345—Vascular system
- A61B2018/00351—Heart
- A61B2018/00357—Endocardium
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/00577—Ablation
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- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6846—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
- A61B5/6847—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive mounted on an invasive device
- A61B5/6852—Catheters
- A61B5/6858—Catheters with a distal basket, e.g. expandable basket
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6846—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
- A61B5/6847—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive mounted on an invasive device
- A61B5/6852—Catheters
- A61B5/6859—Catheters with multiple distal splines
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
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- 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
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2218/00—Aspects of pattern recognition specially adapted for signal processing
Description
実施例8において、心臓組織をマッピングするための方法は、解剖学的構造内、あるいはその周辺に配置された複数のマッピング電極を用いて心臓活動の活性化信号を検出することを含み、複数のマッピング電極の各々は電極位置を有していることと、各電極位置における活性化信号の伝搬方向を表すベクトル場マップを生成することと、少なくとも一つのベクトル場テンプレートに従ってベクトル場マップにおけるシグネチャパターン及び位置を特定することとを含む。
Claims (6)
- 内因性心臓活動の活性化信号を検出するように構成された複数のマッピング電極を含み、複数の前記マッピング電極の各々は電極位置を有していることと、
複数の前記マッピング電極に関連したマッピング処理装置を含み、前記マッピング処理装置は検出された前記活性化信号を記録し、且つ複数の前記マッピング電極の一つと記録された各活性化信号とを関連付けるように構成され、前記マッピング処理装置は対応する前記電極と解剖学的構造との間の接触、及び検出された前記活性化信号におけるノイズレベルの少なくとも一方に従って、電極位置において検出された各活性化信号に対する信頼性指標を決定し、且つ対応する前記信頼性指標に従って前記ベクトル場マップの各ベクトルを調整することによって各電極位置における前記活性化信号の伝搬方向を表すベクトル場マップを生成し、且つ少なくとも一つのベクトル場テンプレートに従って前記ベクトル場マップにおけるシグネチャパターンと、前記シグネチャパターンに関連した位置とを特定するようにさらに構成されるカテーテルシステム。 - 請求項1に記載のカテーテルシステムにおいて、前記ベクトル場マップを生成するため、前記マッピング処理装置は、少なくとも一つの隣接する電極に対して検出された前記活性化信号の伝搬方向を表すような、各電極における伝搬ベクトルを決定するようにさらに構成されるカテーテルシステム。
- 請求項1に記載のカテーテルシステムにおいて、前記シグネチャパターンを特定するため、前記マッピング処理装置は、複数のベクトル場テンプレートを含むテンプレートバンクにアクセスし、各ベクトル場テンプレートは固有のシグネチャパターンを有していることと、前記テンプレートバンクの各ベクトル場テンプレートと前記ベクトル場マップとを比較し、且つ類似性指標に従って、生成された前記ベクトル場マップに最も類似する前記シグネチャパターンを特定するようにさらに構成されるカテーテルシステム。
- 請求項3に記載のカテーテルシステムにおいて、前記テンプレートバンクの固有の各シグネチャパターンは、焦点位置を有する焦点活動を表す発散パターン、及びコア位置を有するロータ活動を表す渦巻パターンの少なくとも一方を含むカテーテルシステム。
- 請求項3に記載のカテーテルシステムにおいて、前記ベクトル場マップを比較するため、前記マッピング処理装置は、決定された前記信頼性指標に基づいて予め選択された閾値を満たす前記ベクトル場マップの一つ以上のベクトルを選択し、且つ前記テンプレートバンクの各ベクトル場テンプレート内の対応する前記ベクトルと、一つ以上の選択された前記ベクトルとのみを比較するようにさらに構成されるカテーテルシステム。
- 請求項1に記載のカテーテルシステムにおいて、
生成された前記ベクトル場マップ、及び特定された対象とする前記位置の少なくとも一方を表示するための表示装置をさらに含むカテーテルシステム。
Applications Claiming Priority (3)
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US201361823386P | 2013-05-14 | 2013-05-14 | |
US61/823,386 | 2013-05-14 | ||
PCT/US2014/000114 WO2014185977A1 (en) | 2013-05-14 | 2014-05-14 | Representation and identification of activity patterns during electro-physiology mapping using vector fields |
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JP2016518217A JP2016518217A (ja) | 2016-06-23 |
JP6182665B2 true JP6182665B2 (ja) | 2017-08-16 |
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JP2016513945A Active JP6182665B2 (ja) | 2013-05-14 | 2014-05-14 | ベクトル場を用いた電気生理学的マッピング中の活動パターンの表示及び特定のためのカテーテルシステム |
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US (2) | US9918649B2 (ja) |
EP (1) | EP2996550B1 (ja) |
JP (1) | JP6182665B2 (ja) |
CN (1) | CN105228510B (ja) |
WO (1) | WO2014185977A1 (ja) |
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Free format text: JAPANESE INTERMEDIATE CODE: R250 |