IL98926A - מעבד אות ביו-פוטנציאלי עבור הדמיית תהודה מגנטית - Google Patents
מעבד אות ביו-פוטנציאלי עבור הדמיית תהודה מגנטיתInfo
- Publication number
- IL98926A IL98926A IL9892691A IL9892691A IL98926A IL 98926 A IL98926 A IL 98926A IL 9892691 A IL9892691 A IL 9892691A IL 9892691 A IL9892691 A IL 9892691A IL 98926 A IL98926 A IL 98926A
- Authority
- IL
- Israel
- Prior art keywords
- signal
- noise
- coil
- bio
- output
- Prior art date
Links
- 238000002595 magnetic resonance imaging Methods 0.000 title claims description 20
- 230000003044 adaptive effect Effects 0.000 claims description 27
- 230000002596 correlated effect Effects 0.000 claims description 19
- 238000012545 processing Methods 0.000 claims description 12
- 238000001914 filtration Methods 0.000 claims description 9
- 230000004044 response Effects 0.000 claims description 8
- 230000000875 corresponding effect Effects 0.000 claims description 6
- 230000005672 electromagnetic field Effects 0.000 claims description 4
- 230000003595 spectral effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 description 11
- 239000000654 additive Substances 0.000 description 6
- 230000000996 additive effect Effects 0.000 description 6
- 238000003384 imaging method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 208000028399 Critical Illness Diseases 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000004071 biological effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000004936 stimulating effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- A61B5/276—Protection against electrode failure
-
- 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]
-
- 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
- G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
- G01R33/385—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using gradient magnetic field coils
-
- 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
- G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
- G01R33/385—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using gradient magnetic field coils
- G01R33/3854—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using gradient magnetic field coils means for active and/or passive vibration damping or acoustical noise suppression in gradient magnet coil systems
-
- 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
- A61B5/7239—Details of waveform analysis using differentiation including higher order derivatives
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S128/00—Surgery
- Y10S128/901—Suppression of noise in electric signal
Landscapes
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Veterinary Medicine (AREA)
- General Physics & Mathematics (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Biomedical Technology (AREA)
- Public Health (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- High Energy & Nuclear Physics (AREA)
- Radiology & Medical Imaging (AREA)
- Cardiology (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US56317690A | 1990-08-06 | 1990-08-06 |
Publications (2)
Publication Number | Publication Date |
---|---|
IL98926A0 IL98926A0 (en) | 1992-07-15 |
IL98926A true IL98926A (he) | 1994-11-28 |
Family
ID=24249411
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IL9892691A IL98926A (he) | 1990-08-06 | 1991-07-23 | מעבד אות ביו-פוטנציאלי עבור הדמיית תהודה מגנטית |
Country Status (5)
Country | Link |
---|---|
US (1) | US5436564A (he) |
EP (1) | EP0470764A3 (he) |
JP (1) | JPH0616771B2 (he) |
CA (1) | CA2042271A1 (he) |
IL (1) | IL98926A (he) |
Families Citing this family (56)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE1007806A3 (nl) * | 1993-11-30 | 1995-10-24 | Philips Electronics Nv | Magnetisch resonantie apparaat bevattende een communicatiesysteem. |
US5525906A (en) * | 1994-07-11 | 1996-06-11 | General Electric | Detection and elimination of wide bandwidth noise in MRI signals |
US5711305A (en) * | 1995-02-17 | 1998-01-27 | Ep Technologies, Inc. | Systems and methods for acquiring endocardially or epicardially paced electrocardiograms |
US5630425A (en) * | 1995-02-17 | 1997-05-20 | Ep Technologies, Inc. | Systems and methods for adaptive filtering artifacts from composite signals |
US5605157A (en) * | 1995-02-17 | 1997-02-25 | Ep Technologies, Inc. | Systems and methods for filtering signals derived from biological events |
US5601088A (en) * | 1995-02-17 | 1997-02-11 | Ep Technologies, Inc. | Systems and methods for filtering artifacts from composite signals |
US5609157A (en) * | 1995-02-17 | 1997-03-11 | Ep Technologies, Inc. | Systems and methods for analyzing biopotential morphologies in body tissue using iterative techniques |
US5722416A (en) * | 1995-02-17 | 1998-03-03 | Ep Technologies, Inc. | Systems and methods for analyzing biopotential morphologies in heart tissue to locate potential ablation sites |
CA2213133C (en) * | 1995-02-17 | 2003-06-17 | Ep Technologies, Inc. | Systems and methods for making time-sequential measurements of biological events |
US6101409A (en) * | 1995-02-17 | 2000-08-08 | Ep Technologies, Inc. | Systems and methods for analyzing biopotential morphologies in body tissue |
US5595183A (en) * | 1995-02-17 | 1997-01-21 | Ep Technologies, Inc. | Systems and methods for examining heart tissue employing multiple electrode structures and roving electrodes |
DE19616390C2 (de) * | 1996-04-24 | 2002-05-29 | Siemens Ag | Verfahren zur Identifikation von Spikes in MR-Signalen |
US6201981B1 (en) * | 1997-06-04 | 2001-03-13 | Nihon Kohden Corporation | Electrode for measuring biomedical signal and electrode support device for measuring a biomedical signal |
US6073039A (en) * | 1997-11-07 | 2000-06-06 | The United States Of America As Represented By The Department Of Health And Human Services | Device and method for real-time monitoring of an electrocardiogram during magnetic resonance imaging |
DE19817094A1 (de) * | 1998-04-17 | 1999-10-21 | Alexander Hoffmann | Verfahren und Einrichtung zum Ableiten eines Elektroenzephalogramms im Kernspintomograph |
US6148229A (en) * | 1998-12-07 | 2000-11-14 | Medrad, Inc. | System and method for compensating for motion artifacts in a strong magnetic field |
US6852084B1 (en) * | 2000-04-28 | 2005-02-08 | Peter V. Boesen | Wireless physiological pressure sensor and transmitter with capability of short range radio frequency transmissions |
US6470893B1 (en) * | 2000-05-15 | 2002-10-29 | Peter V. Boesen | Wireless biopotential sensing device and method with capability of short-range radio frequency transmission and reception |
US6862368B1 (en) * | 2000-01-12 | 2005-03-01 | Koninklijke Philips Electronics N.V. | Method and apparatus for edge detection |
AU2001283371A1 (en) * | 2000-08-15 | 2002-02-25 | The Regents Of The University Of California | Method and apparatus for reducing contamination of an electrical signal |
US6675036B2 (en) | 2001-07-18 | 2004-01-06 | Ge Medical Systems, Inc. | Diagnostic device including a method and apparatus for bio-potential noise cancellation utilizing the patient's respiratory signal |
US6657597B2 (en) * | 2001-08-06 | 2003-12-02 | Halliburton Energy Services, Inc. | Directional signal and noise sensors for borehole electromagnetic telemetry system |
US6781521B1 (en) * | 2001-08-06 | 2004-08-24 | Halliburton Energy Services, Inc. | Filters for canceling multiple noise sources in borehole electromagnetic telemetry system |
US7039455B1 (en) * | 2001-10-09 | 2006-05-02 | Medrad, Inc. | Apparatus and method for removing magnetic resonance imaging-induced noise from ECG signals |
JP2006166929A (ja) * | 2002-05-29 | 2006-06-29 | Kimitaka Anami | 脳波とfMRIとの同時連続測定システム、それに用いるクロック・デバイダ、このクロック・デバイダを備えた脳波測定装置及びfMRI装置 |
EP1417927A1 (de) * | 2002-11-11 | 2004-05-12 | Schiller AG | Verfahren und Vorrichtung zum Erfassen und Übermitteln von elektrophysiologischen Signalen zur Verwendung in einem MRI-System |
DE50211409D1 (de) * | 2002-11-11 | 2008-01-31 | Schiller Ag | Verfahren und Vorrichtung zum Erfassen und Bearbeiten eines EKG-Signals |
EP1424637A1 (en) * | 2002-11-29 | 2004-06-02 | Instrumentarium Corporation | Artifact removal from an electric signal |
US8161438B2 (en) * | 2003-10-21 | 2012-04-17 | Mentor Graphics Corporation | Determining mutual inductance between intentional inductors |
US7496871B2 (en) | 2003-10-21 | 2009-02-24 | Roberto Suaya | Mutual inductance extraction using dipole approximations |
JP4612338B2 (ja) * | 2004-05-11 | 2011-01-12 | 株式会社東芝 | 磁気共鳴イメージング装置 |
US7693566B2 (en) * | 2004-10-18 | 2010-04-06 | Compumedics Limited | Method and apparatus for buffering electrophysiological signals during an MRI procedure |
WO2007134146A2 (en) * | 2006-05-12 | 2007-11-22 | Invivo Corporation | Isolation system for mri-compatible wireless patient monitors |
US8626266B1 (en) | 2006-06-01 | 2014-01-07 | Perinatronics Medical Systems, Inc. | ECG triggered heart and arterial magnetic resonance imaging |
DE602006006818D1 (de) * | 2006-06-30 | 2009-06-25 | Gen Electric | Verfahren und System für Mehrkanalbiosignal-Verarbeitung |
US8108039B2 (en) * | 2007-07-13 | 2012-01-31 | Neuro Wave Systems Inc. | Method and system for acquiring biosignals in the presence of HF interference |
WO2009114483A1 (en) * | 2008-03-08 | 2009-09-17 | Mentor Graphics Corporation | High-frequency vlsi interconnect and intentional inductor impedance extraction in the presence of a multi-layer conductive substrate |
US7952425B2 (en) * | 2008-09-11 | 2011-05-31 | Siemens Medical Solutions Usa, Inc. | Adaptive filtering system for patient signal monitoring |
US20100312094A1 (en) | 2009-06-08 | 2010-12-09 | Michael Guttman | Mri-guided surgical systems with preset scan planes |
CN102625670B (zh) | 2009-06-16 | 2015-07-15 | 核磁共振成像介入技术有限公司 | Mri导向装置以及能够近实时地跟踪和生成该装置的动态可视化的mri导向的介入系统 |
DE102009038059B4 (de) * | 2009-08-19 | 2015-05-13 | Siemens Aktiengesellschaft | Verfahren zur Korrektur eines Rohsignals im Hinblick auf ein durch Gradientenspulen hervorgerufenes Störsignal in einem Magnetresonanzgerät bei der Bestimmung eines Zeitpunkts im Herzzyklus eines Patienten und Magnetresonanzgerät |
CN102655805B (zh) * | 2009-09-14 | 2014-09-17 | 皇家飞利浦电子股份有限公司 | 用于使用mpi进行无创心脏内心电描记的设备和方法 |
US8970217B1 (en) | 2010-04-14 | 2015-03-03 | Hypres, Inc. | System and method for noise reduction in magnetic resonance imaging |
US8659297B2 (en) | 2012-02-27 | 2014-02-25 | Perinatronics Medical Systems, Inc. | Reducing noise in magnetic resonance imaging using conductive loops |
US10231671B2 (en) | 2012-05-24 | 2019-03-19 | Koninklijke Philips N.V. | Reduction of MRI interference from the electrocardiogram using lead information |
JP6004924B2 (ja) * | 2012-11-30 | 2016-10-12 | ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー | 磁気共鳴装置およびプログラム |
DE102013215549B4 (de) * | 2013-08-07 | 2017-08-31 | Siemens Healthcare Gmbh | Verfahren zur Steuerung eines Magnetresonanzgeräts |
US9320447B2 (en) * | 2014-02-07 | 2016-04-26 | Biosense Webster (Israel) Ltd. | Dynamic cancellation of MRI sequencing noise appearing in an ECG signal |
US20150223712A1 (en) * | 2014-02-07 | 2015-08-13 | Biosense Webster (Israel) Ltd. | Analog cancellation of mri sequencing noise appearing in an ecg signal |
US10307106B2 (en) | 2014-07-11 | 2019-06-04 | Brigham And Women's Hosptial, Inc. | Systems and methods for estimating and removing magnetic resonance imaging gradient field-induced voltages from electrophysiology signals |
CN104323769B (zh) * | 2014-09-19 | 2016-09-07 | 中国人民解放军第三军医大学 | 一种抑制心肺复苏引起的心电干扰的方法、系统及体外除颤仪 |
JP2017035131A (ja) * | 2015-08-06 | 2017-02-16 | 東芝メディカルシステムズ株式会社 | Ecg信号処理装置、mri装置及びecg信号処理方法 |
JP6639830B2 (ja) * | 2015-08-10 | 2020-02-05 | キヤノンメディカルシステムズ株式会社 | 磁気共鳴イメージング装置 |
CN110123315B (zh) * | 2019-05-10 | 2022-02-22 | 深圳市德力凯医疗设备股份有限公司 | 一种抗电刀干扰的脑电信号检测系统及装置 |
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 |
US20220361798A1 (en) * | 2021-04-23 | 2022-11-17 | Pertech Industries, Inc. | Multi sensor and method |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4093911A (en) * | 1977-02-22 | 1978-06-06 | Varian Associates, Inc. | Nuclear magnetic resonance spectrometer employing an improved resonance signal gating circuit |
US4649505A (en) * | 1984-07-02 | 1987-03-10 | General Electric Company | Two-input crosstalk-resistant adaptive noise canceller |
US4991587A (en) * | 1985-08-09 | 1991-02-12 | Picker International, Inc. | Adaptive filtering of physiological signals in physiologically gated magnetic resonance imaging |
US5038785A (en) * | 1985-08-09 | 1991-08-13 | Picker International, Inc. | Cardiac and respiratory monitor with magnetic gradient noise elimination |
US4675658A (en) * | 1985-09-17 | 1987-06-23 | Allied Corporation | System including tuned AC magnetic field transmit antenna and untuned AC magnetic field receive antenna |
US4793361A (en) * | 1987-03-13 | 1988-12-27 | Cardiac Pacemakers, Inc. | Dual channel P-wave detection in surface electrocardiographs |
US4998058A (en) * | 1989-03-24 | 1991-03-05 | Micro-Trak Systems, Inc. | Apparatus including transmitter, receiver and display housings for locating corresponding points on opposite sides of a structure |
US4991580A (en) * | 1989-03-30 | 1991-02-12 | Invivo Research, Inc. | Method of improving the quality of an electrocardiogram obtained from a patient undergoing magnetic resonance imaging |
-
1991
- 1991-05-09 CA CA002042271A patent/CA2042271A1/en not_active Abandoned
- 1991-07-23 IL IL9892691A patent/IL98926A/he unknown
- 1991-07-29 JP JP3210505A patent/JPH0616771B2/ja not_active Expired - Fee Related
- 1991-08-01 EP EP19910307056 patent/EP0470764A3/en not_active Withdrawn
-
1992
- 1992-06-30 US US07/908,599 patent/US5436564A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0470764A2 (en) | 1992-02-12 |
CA2042271A1 (en) | 1992-02-07 |
IL98926A0 (en) | 1992-07-15 |
JPH04244136A (ja) | 1992-09-01 |
US5436564A (en) | 1995-07-25 |
EP0470764A3 (en) | 1992-08-05 |
JPH0616771B2 (ja) | 1994-03-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5436564A (en) | Bio-potential signal processor for magnetic resonance imaging | |
EP0429190B1 (en) | Non-invasive examination apparatus and methods | |
Murakami et al. | Intensity correction of phased‐array surface coil images | |
Wigström et al. | Temporally resolved 3D phase‐contrast imaging | |
US6148229A (en) | System and method for compensating for motion artifacts in a strong magnetic field | |
EP0411840A2 (en) | Radio frequency receiver for a NMR instrument | |
WO1996016340A1 (en) | Method of and device for magnetic resonance imaging | |
Abächerli et al. | Suppression of MR gradient artefacts on electrophysiological signals based on an adaptive real-time filter with LMS coefficient updates | |
US6242916B1 (en) | Partial fourier acquistion of MR data over a limited field of view and image reconstruction | |
EP0470224B1 (en) | Roll-over aliasing suppression in undersampled images | |
JP3563404B2 (ja) | 信号取得の間に時間的に変化する勾配を用いるmriシステム | |
US5084675A (en) | Method for improving the signal-to-noise ratio in a nuclear magnetic resonance tomography apparatus | |
Wu et al. | Adaptive noise cancellation to suppress electrocardiography artifacts during real‐time interventional MRI | |
US10231672B2 (en) | ECG signal processing apparatus, MRI apparatus, and ECG signal processing method | |
US4893082A (en) | Noise suppression in magnetic resonance imaging | |
EP0355556B1 (en) | Method for retrospectively gating NMR data | |
EP0409421A2 (en) | Magnetic resonance imaging methods and apparatus | |
US6853193B2 (en) | Simultaneous MR data acquisition with multiple mutually desensitized RF coils | |
JP4248588B1 (ja) | 小型磁気共鳴イメージング装置 | |
JPH03136635A (ja) | Mri信号の回復方法 | |
JP3246130B2 (ja) | Mrイメージング装置 | |
KR100375922B1 (ko) | Mra의 영상구현시 발생하는 아티펙트제거방법 | |
JP3129191B2 (ja) | 磁気共鳴断層撮影装置 | |
JPH0479937A (ja) | 磁気共鳴イメージング装置 | |
JPH1199136A (ja) | 磁気共鳴断層撮影装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
KB | Patent renewed |