DE69900494D1 - Verfahren zur messung, bestimmung und anzeige von effektivwerten der stromdichteverteilung - Google Patents

Verfahren zur messung, bestimmung und anzeige von effektivwerten der stromdichteverteilung

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Publication number
DE69900494D1
DE69900494D1 DE69900494T DE69900494T DE69900494D1 DE 69900494 D1 DE69900494 D1 DE 69900494D1 DE 69900494 T DE69900494 T DE 69900494T DE 69900494 T DE69900494 T DE 69900494T DE 69900494 D1 DE69900494 D1 DE 69900494D1
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DE
Germany
Prior art keywords
voxels
array
current density
computing
selected time
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 - Lifetime
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DE69900494T
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English (en)
Inventor
Ellis Robinson
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CTF Systems Inc
Original Assignee
CTF Systems Inc
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by CTF Systems Inc filed Critical CTF Systems Inc
Application granted granted Critical
Publication of DE69900494D1 publication Critical patent/DE69900494D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • A61B5/242—Detecting biomagnetic fields, e.g. magnetic fields produced by bioelectric currents
    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2218/00—Aspects of pattern recognition specially adapted for signal processing
    • G06F2218/22—Source localisation; Inverse modelling
DE69900494T 1998-01-23 1999-01-20 Verfahren zur messung, bestimmung und anzeige von effektivwerten der stromdichteverteilung Expired - Lifetime DE69900494D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US7234098P 1998-01-23 1998-01-23
PCT/CA1999/000044 WO1999037206A1 (en) 1998-01-23 1999-01-20 System and method for measuring, estimating and displaying rms current density maps

Publications (1)

Publication Number Publication Date
DE69900494D1 true DE69900494D1 (de) 2002-01-10

Family

ID=22106978

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69900494T Expired - Lifetime DE69900494D1 (de) 1998-01-23 1999-01-20 Verfahren zur messung, bestimmung und anzeige von effektivwerten der stromdichteverteilung

Country Status (8)

Country Link
US (1) US6370414B1 (de)
EP (1) EP1049402B1 (de)
JP (1) JP2002500909A (de)
AT (1) ATE209465T1 (de)
AU (1) AU2043699A (de)
CA (1) CA2319227C (de)
DE (1) DE69900494D1 (de)
WO (1) WO1999037206A1 (de)

Families Citing this family (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3712348B2 (ja) 2000-07-18 2005-11-02 独立行政法人科学技術振興機構 心房粗動および心房細動の心臓磁界診断装置およびその作動方法
US20050283053A1 (en) * 2002-01-30 2005-12-22 Decharms Richard C Methods for physiological monitoring, training, exercise and regulation
US6996261B2 (en) * 2001-01-30 2006-02-07 Decharms R Christopher Methods for physiological monitoring, training, exercise and regulation
JP3582495B2 (ja) * 2001-02-21 2004-10-27 株式会社日立製作所 生体磁場計測装置
JP3757815B2 (ja) * 2001-04-27 2006-03-22 株式会社日立製作所 生体磁場計測装置
JP2002355229A (ja) * 2001-05-31 2002-12-10 Japan Science & Technology Corp 磁界解析方法および電流分布可視化装置
AU2003231992A1 (en) * 2002-04-17 2003-11-03 Board Of Trustees Of The University Of Arkansas Uterine magnetomyography
US20040092809A1 (en) * 2002-07-26 2004-05-13 Neurion Inc. Methods for measurement and analysis of brain activity
WO2004109300A2 (en) * 2003-06-03 2004-12-16 Decharms R Christopher Methods for magnetic resonance signal perturbations measurement
US7672707B2 (en) * 2003-06-11 2010-03-02 Japan Science And Technology Agency Sensor for magnetoencephalography meter and supermultichannel magnetoencephalography meter system using the same
FI115737B (fi) * 2003-09-26 2005-06-30 Elekta Neuromag Oy Menetelmä monikanavaisen mittaussignaalin käyttämiseksi lähdemallinnuksessa
EP1814630A4 (de) * 2004-11-15 2008-05-07 Christopher Decharms Anwendungen zur nervengewebestimulierung mittels licht
US7844211B2 (en) * 2004-12-01 2010-11-30 Kaonetics Technologies, Inc. Ionizing communication disruptor unit
US8244342B2 (en) * 2004-12-03 2012-08-14 The Invention Science Fund I, Llc Method and system for adaptive vision modification
US7656569B2 (en) * 2004-12-03 2010-02-02 Searete Llc Vision modification with reflected image
US9155483B2 (en) 2004-12-03 2015-10-13 The Invention Science Fund I, Llc Vision modification with reflected image
US7390088B2 (en) * 2004-12-03 2008-06-24 Searete Llc Adjustable lens system with neural-based control
US7350919B2 (en) * 2004-12-03 2008-04-01 Searete Llc Vision modification with reflected image
US7470027B2 (en) * 2004-12-03 2008-12-30 Searete Llc Temporal vision modification
US7931373B2 (en) * 2004-12-03 2011-04-26 The Invention Science Fund I, Llc Vision modification with reflected image
US7334892B2 (en) * 2004-12-03 2008-02-26 Searete Llc Method and system for vision enhancement
US7594727B2 (en) * 2004-12-03 2009-09-29 Searete Llc Vision modification with reflected image
US7334894B2 (en) * 2004-12-03 2008-02-26 Searete, Llc Temporal vision modification
US8104892B2 (en) * 2004-12-03 2012-01-31 The Invention Science Fund I, Llc Vision modification with reflected image
US7486988B2 (en) * 2004-12-03 2009-02-03 Searete Llc Method and system for adaptive vision modification
US7344244B2 (en) * 2004-12-03 2008-03-18 Searete, Llc Adjustable lens system with neural-based control
WO2006122398A1 (en) * 2005-05-16 2006-11-23 Cerebral Diagnostics Canada Incorporated Near-real time three-dimensional localization, display , recording , and analysis of electrical activity in the cerebral cortex
US7698946B2 (en) 2006-02-24 2010-04-20 Caterpillar Inc. System and method for ultrasonic detection and imaging
US20070239059A1 (en) * 2006-03-21 2007-10-11 Mciver Christopher R Neurophysiology testing system
US7231723B1 (en) 2006-08-08 2007-06-19 The Boeing Company Device for neural sensor placement and reference system measurements
JP4893213B2 (ja) * 2006-10-05 2012-03-07 株式会社日立製作所 磁場計測装置
US8170304B2 (en) * 2007-04-03 2012-05-01 Siemens Aktiengesellschaft Modeling cerebral aneurysms in medical images
WO2008127720A2 (en) * 2007-04-13 2008-10-23 University Of Florida Research Foundation, Inc. Atomic magnetometer sensor array magnetoencephalogram systems and methods
US20090306532A1 (en) * 2008-06-06 2009-12-10 Tucker Don M Method for locating tracts of electrical brain activity
US8593141B1 (en) 2009-11-24 2013-11-26 Hypres, Inc. Magnetic resonance system and method employing a digital squid
US8970217B1 (en) 2010-04-14 2015-03-03 Hypres, Inc. System and method for noise reduction in magnetic resonance imaging
US8463571B2 (en) 2010-11-12 2013-06-11 International Business Machines Corporation Performing reliability analysis of signal wires
WO2018047083A2 (en) 2016-09-07 2018-03-15 Texas Tech University System Electric current imaging system
US11766204B2 (en) * 2017-05-12 2023-09-26 The Korea Research Institute of Standards and Science (“KRISS”) Multi-sensor magneto-monitoring-imaging system
WO2019060298A1 (en) 2017-09-19 2019-03-28 Neuroenhancement Lab, LLC METHOD AND APPARATUS FOR NEURO-ACTIVATION
US11717686B2 (en) 2017-12-04 2023-08-08 Neuroenhancement Lab, LLC Method and apparatus for neuroenhancement to facilitate learning and performance
WO2019133997A1 (en) 2017-12-31 2019-07-04 Neuroenhancement Lab, LLC System and method for neuroenhancement to enhance emotional response
US11364361B2 (en) 2018-04-20 2022-06-21 Neuroenhancement Lab, LLC System and method for inducing sleep by transplanting mental states
EP3849410A4 (de) 2018-09-14 2022-11-02 Neuroenhancement Lab, LLC System und verfahren zur verbesserung des schlafs
JP7293814B2 (ja) * 2019-04-01 2023-06-20 株式会社リコー 生体情報計測装置、生体情報計測方法およびプログラム
US11786694B2 (en) 2019-05-24 2023-10-17 NeuroLight, Inc. Device, method, and app for facilitating sleep
CN111973180B (zh) * 2020-09-03 2021-09-17 北京航空航天大学 一种基于meg和eeg融合的脑结构成像系统和方法

Family Cites Families (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4949725A (en) 1988-07-01 1990-08-21 Bio-Logic Systems Corporation Apparatus and method for displaying electrical activity generated within a living body
US4947480A (en) 1988-10-31 1990-08-07 The United States Of America As Represented By The United States Department Of Energy Multichannel signal enhancement
JPH02246926A (ja) 1989-03-17 1990-10-02 Fujitsu Ltd 推定電流源の表示方式
US5269325A (en) 1989-05-26 1993-12-14 Biomagnetic Technologies, Inc. Analysis of biological signals using data from arrays of sensors
US4977896A (en) 1989-05-26 1990-12-18 Biomagnetic Technologies, Inc. Analysis of biological signals using data from arrays of sensors
DE3922150A1 (de) 1989-07-06 1991-01-17 Philips Patentverwaltung Verfahren zur rekonstruktion der raeumlichen stromverteilung in einem biologischen objekt und anordnung zur durchfuehrung des verfahrens
EP0443069A1 (de) 1990-02-22 1991-08-28 Siemens Aktiengesellschaft Verfahren zur Messung des Feldmusters elektrischer oder magnetischer Felder mit Hilfe einer Sensoranordnung
EP0449231B1 (de) 1990-03-28 1995-11-29 Hitachi, Ltd. Verfahren und Gerät zur Messung der Biostromverteilung
EP0504027A3 (en) 1991-03-15 1993-04-21 Centro De Neurociencias De Cuba Method and system for three-dimensional tomography of activity and connectivity of brain and heart electromagnetic waves generators
JPH0515504A (ja) 1991-07-09 1993-01-26 Hitachi Ltd 磁場発生源の推定方法
US5594849A (en) 1991-08-09 1997-01-14 Yale University Biomedical magnetism imaging apparatus and method
DE4126949A1 (de) 1991-08-16 1993-02-18 Siemens Ag Verfahren zur signalauswertung bei biomagnetischen messeinrichtungen
JPH05220123A (ja) 1992-02-12 1993-08-31 Hitachi Ltd 磁場発生源の推定方法
US5228443A (en) 1992-03-27 1993-07-20 General Electric Company Method for estimation and display of current source distribution from electric and magnetic measurements and 3D anatomical data
EP0582885A3 (en) 1992-08-05 1997-07-02 Siemens Ag Procedure to classify field patterns
US5263488A (en) 1992-10-05 1993-11-23 Nicolet Instrument Corporation Method and apparatus for localization of intracerebral sources of electrical activity
DE4326043C2 (de) 1992-10-19 1995-08-17 Siemens Ag Verfahren zur Lokalisierung von mit starkem Rauschen überlagerten elektrophysilogischen Aktivitäten
DE4326041C2 (de) 1992-10-19 1995-11-16 Siemens Ag Verfahren zur Lokalisierung von mit starkem Rauschen überlagerten elektrophysiologischen Aktivitäten
DE4326044C2 (de) 1992-10-19 1995-08-17 Siemens Ag Verfahren zur zeitgemittelten Lokalisierung von mit starkem Rauschen überlagerten elektrophysiologischen Aktivitäten
US5315308A (en) 1992-11-04 1994-05-24 Yale University Method for eletromagnetic source localization
FI98337C (fi) * 1992-11-30 1997-06-10 Risto Juhani Ilmoniemi Menetelmä ja laite aivojen herätevasteiden ja spontaanitoiminnan sekä sydämestä mitattujen signaalien eri komponenttien erottelemiseksi toisistaan
FR2699347B1 (fr) 1992-12-14 1995-02-10 Commissariat Energie Atomique Procédé et dispositif d'extraction d'un signal utile d'extension spatiale finie à chaque instant et variable avec le temps.
JPH06245916A (ja) 1993-02-25 1994-09-06 Hitachi Ltd 生体磁場計測における磁場発生源の推定手法
JP2739804B2 (ja) 1993-05-14 1998-04-15 日本電気株式会社 双極子推定装置
US5601081A (en) 1993-06-04 1997-02-11 Shimdaszu Corporation Method and apparatus for deducing bioelectric current sources
US5526811A (en) 1993-06-15 1996-06-18 Biomagnetic Technologies, Inc. Apparatus and process for determining the sources of biomagnetic activity
US5687724A (en) 1993-10-26 1997-11-18 Abratech Corporation Apparatus and method for determining variations in measured physical parameters of signal-generators
JP3519141B2 (ja) 1994-10-31 2004-04-12 株式会社東芝 生体内電流源推定方法
US5701909A (en) 1994-11-01 1997-12-30 Abratech Corporation Machine and method for the determination of nervous-system-generator parameters using lead fields
US5657756A (en) 1995-06-07 1997-08-19 Ctf Systems Inc. Method and systems for obtaining higher order gradiometer measurements with lower order gradiometers
JP3473210B2 (ja) 1995-08-31 2003-12-02 株式会社島津製作所 生体磁気計測装置

Also Published As

Publication number Publication date
CA2319227C (en) 2003-09-30
JP2002500909A (ja) 2002-01-15
AU2043699A (en) 1999-08-09
WO1999037206A1 (en) 1999-07-29
EP1049402B1 (de) 2001-11-28
CA2319227A1 (en) 1999-07-29
US6370414B1 (en) 2002-04-09
EP1049402A1 (de) 2000-11-08
ATE209465T1 (de) 2001-12-15

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