DE3482336D1 - Geraet zur bilderzeugung mittels magnetischer kernresonanz. - Google Patents
Geraet zur bilderzeugung mittels magnetischer kernresonanz.Info
- Publication number
- DE3482336D1 DE3482336D1 DE8484301793T DE3482336T DE3482336D1 DE 3482336 D1 DE3482336 D1 DE 3482336D1 DE 8484301793 T DE8484301793 T DE 8484301793T DE 3482336 T DE3482336 T DE 3482336T DE 3482336 D1 DE3482336 D1 DE 3482336D1
- Authority
- DE
- Germany
- Prior art keywords
- magnetic core
- generating images
- core resonance
- resonance
- images
- 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
Links
Classifications
-
- 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
- G01R33/3806—Open magnet assemblies for improved access to the sample, e.g. C-type or U-type magnets
-
- 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
-
- 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
- G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
- G01R33/34—Constructional details, e.g. resonators, specially adapted to MR
- G01R33/34046—Volume type coils, e.g. bird-cage coils; Quadrature bird-cage coils; Circularly polarised coils
- G01R33/34061—Helmholtz 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
- G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
- G01R33/34—Constructional details, e.g. resonators, specially adapted to MR
- G01R33/341—Constructional details, e.g. resonators, specially adapted to MR comprising surface 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
- G01R33/42—Screening
- G01R33/422—Screening of the radio frequency field
-
- 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
- G01R33/58—Calibration of imaging systems, e.g. using test probes, Phantoms; Calibration objects or fiducial markers such as active or passive RF coils surrounding an MR active material
- G01R33/583—Calibration of signal excitation or detection systems, e.g. for optimal RF excitation power or frequency
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8308778 | 1983-03-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3482336D1 true DE3482336D1 (de) | 1990-06-28 |
Family
ID=10540482
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8484301793T Expired - Lifetime DE3482336D1 (de) | 1983-03-30 | 1984-03-16 | Geraet zur bilderzeugung mittels magnetischer kernresonanz. |
Country Status (5)
Country | Link |
---|---|
US (1) | US4534358A (de) |
EP (1) | EP0121367B1 (de) |
JP (1) | JPS602243A (de) |
DE (1) | DE3482336D1 (de) |
GB (1) | GB2137756B (de) |
Families Citing this family (70)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8329196D0 (en) * | 1983-11-02 | 1983-12-07 | Bydder G M | Nuclear magnetic resonance apparatus |
GB8500248D0 (en) * | 1985-01-04 | 1985-02-13 | Oxford Magnet Tech | Solenoids |
DE3623711A1 (de) * | 1985-07-12 | 1987-01-15 | Med & Tech Handels Gmbh | Vorrichtung zum feststellen von eigenschaften, verschiedenheiten und veraenderungen des menschlichen oder tierischen koerpers |
US4793356A (en) * | 1985-08-14 | 1988-12-27 | Picker International, Inc. | Surface coil system for magnetic resonance imaging |
US4875486A (en) * | 1986-09-04 | 1989-10-24 | Advanced Techtronics, Inc. | Instrument and method for non-invasive in vivo testing for body fluid constituents |
FR2612641B1 (fr) * | 1987-03-19 | 1989-06-09 | Oreal | Appareil pour l'examen d'un corps par resonance magnetique nucleaire par des methodes lentes et rapides, notamment pour l'examen de la couche superficielle de ce corps, dispositif pour creer un gradient de champ magnetique pour un tel appareil, et application a l'imagerie de la peau du corps humain |
EP0296833B1 (de) * | 1987-06-23 | 1991-09-25 | Hafslund Nycomed Innovation AB | Bilderzeugung mittels magnetischer Resonanz |
US4829252A (en) * | 1987-10-28 | 1989-05-09 | The Regents Of The University Of California | MRI system with open access to patient image volume |
US5024229A (en) * | 1987-11-16 | 1991-06-18 | The University Of Rochester | Resonators for magnetic resonance imaging |
US5081071A (en) * | 1988-04-05 | 1992-01-14 | Biomagnetic Technologies, Inc. | Magnetically shielded enclosure |
JPH01305937A (ja) * | 1988-06-02 | 1989-12-11 | Toshiba Corp | 磁気共鳴診断装置 |
JPH0217038A (ja) * | 1988-07-06 | 1990-01-22 | Toshiba Corp | 磁気共鳴イメージング装置 |
US5023554A (en) * | 1989-05-22 | 1991-06-11 | The Reagents Of The University Of California | Fringe field MRI |
US5043529A (en) * | 1990-07-13 | 1991-08-27 | Biomagnetic Technologies, Inc. | Construction of shielded rooms using sealants that prevent electromagnetic and magnetic field leakage |
US5569266A (en) * | 1991-03-11 | 1996-10-29 | Fischer Imaging Corporation | Magnetic resonance imaging device useful for guiding a medical instrument |
US5250901A (en) * | 1991-11-07 | 1993-10-05 | The Regents Of The University Of California | Open architecture iron core electromagnet for MRI using superconductive winding |
US6697659B1 (en) * | 1991-12-04 | 2004-02-24 | Bonutti 2003 Trust-A | Method of imaging a joint in a body of patient |
US5305749B1 (en) * | 1992-09-24 | 2000-05-02 | Univ California | Side-loading of patient into mri c-magnet while maintaining adjacent open accessibility to patient |
US6023165A (en) * | 1992-09-28 | 2000-02-08 | Fonar Corporation | Nuclear magnetic resonance apparatus and methods of use and facilities for incorporating the same |
US6335623B1 (en) | 1992-12-18 | 2002-01-01 | Fonar Corporation | MRI apparatus |
US6414490B1 (en) | 1992-12-18 | 2002-07-02 | Fonar Corporation | MRI magnet with enhanced patient entry and positioning |
US6456075B1 (en) | 1992-12-18 | 2002-09-24 | Fornar Corporation | MRI magnet with enhanced patient entry and positioning |
US5396171A (en) * | 1993-01-04 | 1995-03-07 | General Electric Company | Field mapping fixture for a superconducting magnet for imaging human limbs |
US5542424A (en) * | 1993-03-25 | 1996-08-06 | Rochester Institute Of Technology | Resonator for magnetic resonance imaging |
EP0637755A1 (de) * | 1993-08-02 | 1995-02-08 | Koninklijke Philips Electronics N.V. | Apparat zur Bilderzeugung mittels magnetischer Resonanz |
US5363845A (en) * | 1993-08-13 | 1994-11-15 | Medical Advances, Inc. | Breast coil for magnetic resonance imaging |
FR2710449B1 (fr) * | 1993-09-24 | 1995-11-10 | Crescenzo Eric | Dispositif de magnétisation ou de désaimantation d'un objet sans contact direct avec des pôles magnétiques ou des touches d'amenée de courant. |
GB9513545D0 (en) * | 1995-07-04 | 1995-09-06 | Marconi Gec Ltd | Magnetic resonance methods and apparatus |
US5804969A (en) * | 1995-07-28 | 1998-09-08 | Advanced Mammography Systems, Inc. | MRI RF coil |
US5799653A (en) * | 1995-10-03 | 1998-09-01 | Toshiba America Mri, Inc. | Magnetic resonance imaging apparatus with decreased patient claustrophobia and increased access to patient |
US6272370B1 (en) | 1998-08-07 | 2001-08-07 | The Regents Of University Of Minnesota | MR-visible medical device for neurological interventions using nonlinear magnetic stereotaxis and a method imaging |
US6023166A (en) * | 1997-11-19 | 2000-02-08 | Fonar Corporation | MRI antenna |
US7127802B1 (en) | 1997-11-21 | 2006-10-31 | Fonar Corporation | Method of fabricating a composite plate |
US6163154A (en) * | 1997-12-23 | 2000-12-19 | Magnetic Diagnostics, Inc. | Small scale NMR spectroscopic apparatus and method |
JP3110011B2 (ja) | 1998-01-28 | 2000-11-20 | ジーイー横河メディカルシステム株式会社 | Mri装置および移動型テーブル |
US6463317B1 (en) | 1998-05-19 | 2002-10-08 | Regents Of The University Of Minnesota | Device and method for the endovascular treatment of aneurysms |
JP3034841B2 (ja) * | 1998-06-05 | 2000-04-17 | ジーイー横河メディカルシステム株式会社 | Mri用コイル、クレードル及びmri装置 |
JP3040748B2 (ja) * | 1998-06-15 | 2000-05-15 | ジーイー横河メディカルシステム株式会社 | Mri用垂直マグネット装置およびmri装置 |
US6163717A (en) * | 1998-11-25 | 2000-12-19 | Toshiba America Mri, Inc. | Open structure breast coil and support arrangement for interventional MRI |
US6828792B1 (en) | 1999-11-24 | 2004-12-07 | Fonar Corporation | MRI apparatus and method for imaging |
US6677753B1 (en) | 1999-11-24 | 2004-01-13 | Fonar Corporation | Stand-up MRI apparatus |
US7697971B1 (en) | 2000-07-28 | 2010-04-13 | Fonar Corporation | Positioning system for an MRI |
US8190234B2 (en) | 2000-07-28 | 2012-05-29 | Fonar Corporation | Movable patient support with spatial locating feature |
US7196519B2 (en) * | 2000-07-28 | 2007-03-27 | Fonar Corporation | Stand-up vertical field MRI apparatus |
US6822449B1 (en) | 2000-11-22 | 2004-11-23 | Fonar Corporation | Ferromagnetic frame with laminated carbon steel |
US6934574B1 (en) | 2001-06-21 | 2005-08-23 | Fonar Corporation | MRI scanner and method for modular patient handling |
US6944492B1 (en) | 2001-10-01 | 2005-09-13 | Fonar Corporation | Patient bed support for an open MRI system |
US7701209B1 (en) | 2001-10-05 | 2010-04-20 | Fonar Corporation | Coils for horizontal field magnetic resonance imaging |
US7906966B1 (en) | 2001-10-05 | 2011-03-15 | Fonar Corporation | Quadrature foot coil antenna for magnetic resonance imaging |
US7680525B1 (en) | 2001-11-26 | 2010-03-16 | Fonar Corporation | Method for lateral motion magnetic resonance imaging |
AU2002258715A1 (en) * | 2002-04-04 | 2003-10-20 | Illusion Technologies, Llc | Miniature/micro scale power generation system |
US7239906B1 (en) | 2002-04-18 | 2007-07-03 | Fonar Corporation | Magnetic resonance imaging system including a transpolar fixture |
US8036730B1 (en) | 2002-04-19 | 2011-10-11 | Fonar Corporation | Temporal magnetic resonance imaging |
US7123008B1 (en) | 2002-04-19 | 2006-10-17 | Fonar Corporation | Positional magnetic resonance imaging |
AU2003294458A1 (en) * | 2002-11-25 | 2004-06-18 | Fonar Corporation | Method, apparatus, and facility for mri dual scanning |
US8064984B2 (en) * | 2003-03-18 | 2011-11-22 | Esaote S.P.A. | Magnetic resonance imaging apparatus |
US7030612B1 (en) | 2004-01-13 | 2006-04-18 | Fonar Corporation | Body rest for magnetic resonance imaging |
US8401615B1 (en) | 2004-11-12 | 2013-03-19 | Fonar Corporation | Planar coil flexion fixture for magnetic resonance imaging and use thereof |
WO2006057701A2 (en) * | 2004-11-24 | 2006-06-01 | Fonar Corporation | Immobilization fixture for magnetic resonance imaging |
JP4231027B2 (ja) * | 2005-05-26 | 2009-02-25 | 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 | Rf受信コイル装置および磁気共鳴イメージング装置 |
DE102005024325A1 (de) * | 2005-05-27 | 2006-08-10 | Siemens Ag | Lokalspule zum Empfangen eines Magnetresonanzsignals eines weiblichen Oberkörpers |
US8055325B1 (en) | 2006-01-10 | 2011-11-08 | Fonar Corporation | Seated patient support and use thereof in magnetic resonance imaging |
US20080125641A1 (en) * | 2006-08-08 | 2008-05-29 | Intermagnetics General Corporation | Seat, a chair including a seat, and a method of using a magnetic resonance imaging system including a seat |
US8401612B1 (en) | 2006-09-11 | 2013-03-19 | Fonar Corporation | Magnetic resonance imaging system and method for detecting chiari malformations |
DE602006004456D1 (de) * | 2006-09-29 | 2009-02-05 | Esaote Spa | Gerät der Magnetresonanzbildgebung und Verfahren der Magnetresonanzbildgebung unter Verwendung eines derartigen Geräts |
US9386939B1 (en) | 2007-05-10 | 2016-07-12 | Fonar Corporation | Magnetic resonance imaging of the spine to detect scoliosis |
US8599215B1 (en) | 2008-05-07 | 2013-12-03 | Fonar Corporation | Method, apparatus and system for joining image volume data |
JP5955768B2 (ja) | 2009-08-11 | 2016-07-20 | コーニンクレッカ フィリップス エヌ ヴェKoninklijke Philips N.V. | 心臓刺激装置に用いられる非磁性高電圧充電システム |
US20130218000A1 (en) * | 2012-02-17 | 2013-08-22 | Qfix Systems, Llc | MRI Coil For Imaging Of The Breast And Thoracic Area |
US11141080B1 (en) | 2013-03-13 | 2021-10-12 | Fonar Corporation | Cervical vertebra angle measurement |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3557777A (en) * | 1967-05-04 | 1971-01-26 | David Cohen | Magnetic study of bioelectric phenomena |
US3622869A (en) * | 1967-06-28 | 1971-11-23 | Marcel J E Golay | Homogenizing coils for nmr apparatus |
JPS51131389A (en) * | 1975-05-12 | 1976-11-15 | Hitachi Ltd | Device for uniform polarized magnetic field |
US4354499A (en) * | 1978-11-20 | 1982-10-19 | Damadian Raymond V | Apparatus and method for nuclear magnetic resonance scanning and mapping |
US4333053A (en) * | 1979-03-13 | 1982-06-01 | Emi Limited | Imaging systems |
GB2082775B (en) * | 1980-08-06 | 1984-01-25 | Emi Ltd | Nmr imaging apparatus and method |
DE3123493A1 (de) * | 1981-06-13 | 1982-12-30 | Bruker Analytische Meßtechnik GmbH, 7512 Rheinstetten | Elektromagnet fuer die nmr-tomographie |
DE3140225A1 (de) * | 1981-10-09 | 1983-04-28 | Siemens AG, 1000 Berlin und 8000 München | Geraet zur erzeugung von bildern eines untersuchungsobjektes |
-
1984
- 1984-03-16 EP EP84301793A patent/EP0121367B1/de not_active Expired
- 1984-03-16 DE DE8484301793T patent/DE3482336D1/de not_active Expired - Lifetime
- 1984-03-16 GB GB08406949A patent/GB2137756B/en not_active Expired
- 1984-03-21 US US06/591,697 patent/US4534358A/en not_active Expired - Fee Related
- 1984-03-30 JP JP59063148A patent/JPS602243A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
EP0121367A2 (de) | 1984-10-10 |
GB2137756B (en) | 1986-04-30 |
JPH049055B2 (de) | 1992-02-19 |
GB8406949D0 (en) | 1984-04-18 |
JPS602243A (ja) | 1985-01-08 |
EP0121367A3 (en) | 1987-05-13 |
GB2137756A (en) | 1984-10-10 |
US4534358A (en) | 1985-08-13 |
EP0121367B1 (de) | 1990-05-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |