JP6195613B2 - リード情報を使用する心電図からのmri干渉の減少 - Google Patents
リード情報を使用する心電図からのmri干渉の減少 Download PDFInfo
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- JP6195613B2 JP6195613B2 JP2015513314A JP2015513314A JP6195613B2 JP 6195613 B2 JP6195613 B2 JP 6195613B2 JP 2015513314 A JP2015513314 A JP 2015513314A JP 2015513314 A JP2015513314 A JP 2015513314A JP 6195613 B2 JP6195613 B2 JP 6195613B2
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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
- A61B5/7203—Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal
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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
- A61B5/30—Input circuits therefor
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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
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/0205—Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
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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
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
- A61B5/055—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
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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
-
- 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
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7225—Details of analog processing, e.g. isolation amplifier, gain or sensitivity adjustment, filtering, baseline or drift compensation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
- G01R33/48—NMR imaging systems
- G01R33/54—Signal processing systems, e.g. using pulse sequences ; Generation or control of pulse sequences; Operator console
- G01R33/56—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution
- G01R33/567—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution gated by physiological signals, i.e. synchronization of acquired MR data with periodical motion of an object of interest, e.g. monitoring or triggering system for cardiac or respiratory gating
- G01R33/5673—Gating or triggering based on a physiological signal other than an MR signal, e.g. ECG gating or motion monitoring using optical systems for monitoring the motion of a fiducial marker
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- Animal Behavior & Ethology (AREA)
- Biomedical Technology (AREA)
- Public Health (AREA)
- Pathology (AREA)
- Heart & Thoracic Surgery (AREA)
- Physiology (AREA)
- Signal Processing (AREA)
- Cardiology (AREA)
- Psychiatry (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Pulmonology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- High Energy & Nuclear Physics (AREA)
- Radiology & Medical Imaging (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Description
Claims (15)
- 生理学的信号S(f)のMR干渉を減少する、磁気共鳴(MR)システムにおいて使用する回路において、
MRIスキャナにより生成された全ての干渉成分N(f)及び生理学的信号S(f)を含む第1の信号、並びに前記生理学的信号S(f)及びエラー信号E(f)を含む第2の信号を入力し、前記第2の信号S(f)+E(f)を前記第1の信号S(f)+N(f)と減算的に組み合わせ、差分信号N(f)−E(f)を生成する第1の加算/減算ノードと、
前記第1の加算/減算ノードからの前記差分信号N(f)−E(f)をフィルタリングするハイパスフィルタと、
前記第1の信号S(f)+N(f)及び前記ハイパスフィルタからのフィルタリングされた信号H(f)*[N(f)−E(f)]を減算的に組み合わせ、前記第2の信号S(f)+E(f)を生成する第2の加算/減算ノードと、
を有する回路。 - ローパスフィルタ、
スルーレート制限ユニット、及び
補間ユニット、
の少なくとも1つを、前記第2の信号がフィードされるように含む、請求項1に記載の回路。 - 前記第1の加算/減算ノード、前記第2の加算/減算ノード、及び前記ハイパスフィルタが、それぞれ演算増幅器を含む、請求項1及び2のいずれか一項に記載の回路。
- 前記生理学的信号が、心電図(ECG)信号を含む、請求項1ないし3のいずれか一項に記載の回路。
- 前記第2の信号をデジタル信号に変換するアナログ・デジタル変換器、
を含む、請求項1ないし4のいずれか一項に記載の回路。 - 前記ハイパスフィルタが、サレンキーフィルタを含む、請求項1ないし5のいずれか一項に記載の回路。
- 前記干渉成分N(f)が、傾斜パルス干渉を含む、請求項1ないし6のいずれか一項に記載の回路。
- 少なくとも1つの電極と、
それぞれ電極に接続された少なくとも1つのワイヤと、
前記磁気共鳴干渉N(f)を除去するように前記少なくとも1つのワイヤに接続された請求項1ないし7のいずれか一項に記載の回路と、
を有する心電図システム。 - 前記少なくとも1つのワイヤの各々が、別の回路に接続される、請求項8に記載のシステム。
- 減少された磁気共鳴干渉を持つ生理学的信号S(f)を受け取る少なくとも1つの患者モニタ、
を含む、請求項8及び9のいずれか一項に記載のシステム。 - 生理学的信号S(f)のMR干渉を減少する、MRシステムにおいて使用する方法において、
MRIスキャナにより生成された全ての干渉成分N(f)及び生理学的信号S(f)を含む第1の信号を入力するステップと、
前記生理学的信号S(f)及びエラー信号E(f)を含む第2の信号S(f)+E(f)を前記第1の信号S(f)+N(f)から減算的に組み合わせ、差分信号N(f)−E(f)を生成するステップと、
ハイパスフィルタを使用して前記差分信号をフィルタリングするステップと、
前記第1の信号S(f)+N(f)及び前記ハイパスフィルタからのフィルタリングされた信号H(f)*[N(f)−E(f)]を減算的に組み合わせ、前記第2の信号S(f)+E(f)を生成するステップと、
を有する方法。 - ローパスフィルタを使用して前記第2の信号をフィルタリングするステップ、
を含む、請求項11に記載の方法。 - 前記第1の信号が、生理学的信号を含む、請求項11及び12のいずれか一項に記載の方法。
- 前記第2の信号をアナログ波形からデジタル波形に変換するステップ、
を含む、請求項11ないし13のいずれか一項に記載の方法。 - 前記方法が、複数の心電図(ECG)電極リードの各々に対して実行される、請求項11ないし14のいずれか一項に記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201261651173P | 2012-05-24 | 2012-05-24 | |
US61/651,173 | 2012-05-24 | ||
PCT/IB2013/053947 WO2013175349A2 (en) | 2012-05-24 | 2013-05-15 | Reduction of mri interference from the electrocardiogram using lead information |
Publications (3)
Publication Number | Publication Date |
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JP2015520649A JP2015520649A (ja) | 2015-07-23 |
JP2015520649A5 JP2015520649A5 (ja) | 2016-06-30 |
JP6195613B2 true JP6195613B2 (ja) | 2017-09-13 |
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ID=48782556
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2015513314A Active JP6195613B2 (ja) | 2012-05-24 | 2013-05-15 | リード情報を使用する心電図からのmri干渉の減少 |
Country Status (6)
Country | Link |
---|---|
US (1) | US10231671B2 (ja) |
EP (1) | EP2854630B1 (ja) |
JP (1) | JP6195613B2 (ja) |
CN (1) | CN104334078B (ja) |
BR (1) | BR112014028907A2 (ja) |
WO (1) | WO2013175349A2 (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
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RU2732344C2 (ru) * | 2015-06-12 | 2020-09-15 | Конинклейке Филипс Н.В. | Система, регистратор и способ поверхностной электромиографии |
DE102016223478A1 (de) * | 2016-11-25 | 2018-05-30 | Siemens Healthcare Gmbh | Verfahren und System zum Ermitteln von Magnetresonanzbilddaten in Abhängigkeit von physiologischen Signalen |
DE102019207672B4 (de) * | 2019-05-24 | 2023-11-09 | Siemens Healthcare Gmbh | Reduktion von magnetfeldinduzierten Störungen bei der Messung von bioelektrischen Signalen |
US11259751B2 (en) * | 2019-07-22 | 2022-03-01 | Biosense Webster (Isreal) Ltd. | Recording apparatus and method for noise reduction |
CN111067523A (zh) * | 2019-12-25 | 2020-04-28 | 东软医疗系统股份有限公司 | 门控装置及其控制方法、装置、医疗设备系统 |
CN111973172B (zh) * | 2020-08-28 | 2021-10-08 | 北京航空航天大学 | 一种基于mcg和ecg融合的心脏结构成像系统及方法 |
DE102022200550B3 (de) | 2022-01-18 | 2023-04-27 | Siemens Healthcare Gmbh | Elektrokardiographie-Gerät ausgebildet zur Verwendung in Kombination mit einem Magnetresonanzgerät sowie Magnetresonanzgerät umfassend das Elektrokardiographie-Gerät |
DE102023200140B3 (de) * | 2023-01-10 | 2024-06-13 | Bruker Biospin Gmbh | Schaltungsanordnung zum Korrigieren eines Eingangssignals, Verwendung der Schaltungsanordnung zur Erfassung eines physiologischen Signals in einem Magnetresonanz-(MR)-System |
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US6052614A (en) * | 1997-09-12 | 2000-04-18 | Magnetic Resonance Equipment Corp. | Electrocardiograph sensor and sensor control system for use with magnetic resonance imaging machines |
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EP1417926B1 (de) | 2002-11-11 | 2007-12-19 | Schiller AG | Verfahren und Vorrichtung zum Erfassen und Bearbeiten eines EKG-Signals |
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CN103026252B (zh) * | 2010-07-23 | 2016-01-06 | 皇家飞利浦电子股份有限公司 | 用于去除互耦mri干扰的双压力传感器信号链 |
-
2013
- 2013-05-15 US US14/398,224 patent/US10231671B2/en active Active
- 2013-05-15 WO PCT/IB2013/053947 patent/WO2013175349A2/en active Application Filing
- 2013-05-15 EP EP13735421.3A patent/EP2854630B1/en active Active
- 2013-05-15 JP JP2015513314A patent/JP6195613B2/ja active Active
- 2013-05-15 BR BR112014028907A patent/BR112014028907A2/pt not_active Application Discontinuation
- 2013-05-15 CN CN201380027044.7A patent/CN104334078B/zh active Active
Also Published As
Publication number | Publication date |
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JP2015520649A (ja) | 2015-07-23 |
WO2013175349A3 (en) | 2014-03-06 |
US10231671B2 (en) | 2019-03-19 |
BR112014028907A2 (pt) | 2017-06-27 |
US20150094561A1 (en) | 2015-04-02 |
WO2013175349A2 (en) | 2013-11-28 |
EP2854630A2 (en) | 2015-04-08 |
CN104334078A (zh) | 2015-02-04 |
CN104334078B (zh) | 2016-12-21 |
EP2854630B1 (en) | 2017-07-12 |
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