ATE161106T1 - Positionierungs-system mit fernsteuerung zur bilderzeugung mittels magnetischer resonanz - Google Patents

Positionierungs-system mit fernsteuerung zur bilderzeugung mittels magnetischer resonanz

Info

Publication number
ATE161106T1
ATE161106T1 AT94300529T AT94300529T ATE161106T1 AT E161106 T1 ATE161106 T1 AT E161106T1 AT 94300529 T AT94300529 T AT 94300529T AT 94300529 T AT94300529 T AT 94300529T AT E161106 T1 ATE161106 T1 AT E161106T1
Authority
AT
Austria
Prior art keywords
nuclei
gradient
echo signals
field
spin echo
Prior art date
Application number
AT94300529T
Other languages
English (en)
Inventor
Christopher W Crowley
Freeman H Rose
Original Assignee
Panacea Medical Lab
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.)
Filing date
Publication date
Application filed by Panacea Medical Lab filed Critical Panacea Medical Lab
Application granted granted Critical
Publication of ATE161106T1 publication Critical patent/ATE161106T1/de

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
    • G01R33/3808—Magnet assemblies for single-sided MR wherein the magnet assembly is located on one side of a subject only; Magnet assemblies for inside-out MR, e.g. for MR in a borehole or in a blood vessel, or magnet assemblies for fringe-field MR

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Vascular Medicine (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Studio Devices (AREA)
AT94300529T 1993-02-01 1994-01-25 Positionierungs-system mit fernsteuerung zur bilderzeugung mittels magnetischer resonanz ATE161106T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/012,053 US5304930A (en) 1993-02-01 1993-02-01 Remotely positioned MRI system

Publications (1)

Publication Number Publication Date
ATE161106T1 true ATE161106T1 (de) 1997-12-15

Family

ID=21753148

Family Applications (1)

Application Number Title Priority Date Filing Date
AT94300529T ATE161106T1 (de) 1993-02-01 1994-01-25 Positionierungs-system mit fernsteuerung zur bilderzeugung mittels magnetischer resonanz

Country Status (8)

Country Link
US (1) US5304930A (de)
EP (1) EP0610012B1 (de)
JP (1) JP2693370B2 (de)
AT (1) ATE161106T1 (de)
AU (1) AU659593B2 (de)
BR (1) BR9400384A (de)
CA (1) CA2113584C (de)
DE (1) DE69407202T2 (de)

Families Citing this family (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5423315A (en) * 1993-11-22 1995-06-13 Picker International, Inc. Magnetic resonance imaging system with thin cylindrical uniform field volume and moving subjects
US5493225A (en) * 1993-12-14 1996-02-20 Panacea Medical Laboratories Method for maintaining encoded coherence for remotely positioned MRI device
US5517118A (en) * 1994-04-25 1996-05-14 Panacea Medical Laboratories Subslicing for remotely positioned MRI
US5767675A (en) * 1996-05-31 1998-06-16 Panacea Medical Laboratories Mixed timing CPMG sequence for remotely positioned MRI
FR2754066B1 (fr) * 1996-10-01 1998-10-30 Oreal Dispositif d'examen d'un volume de faible profondeur par resonance magnetique nucleaire
US5855555A (en) * 1997-01-06 1999-01-05 Crowely; Christopher W. MRI system and method for imaging skin
US6128522A (en) * 1997-05-23 2000-10-03 Transurgical, Inc. MRI-guided therapeutic unit and methods
US5935065A (en) * 1997-06-27 1999-08-10 Panacea Medical Laboratories MRI system with peripheral access and inhomogeneous field
US5999838A (en) * 1997-07-24 1999-12-07 Panacea Medical Laboratories Spread spectrum MRI
US6081117A (en) * 1997-08-11 2000-06-27 Panacea Medical Laboratories Noise modulation for open access and remotely positioned MRI
US6157853A (en) * 1997-11-12 2000-12-05 Stereotaxis, Inc. Method and apparatus using shaped field of repositionable magnet to guide implant
GB9808219D0 (en) 1998-04-17 1998-06-17 British Tech Group Magnetic gradient projection
JP3876561B2 (ja) * 1999-03-15 2007-01-31 宇部興産株式会社 ガス分離膜モジュールおよびガス分離方法
US6489872B1 (en) 1999-05-06 2002-12-03 New Mexico Resonance Unilateral magnet having a remote uniform field region for nuclear magnetic resonance
DE19939626C2 (de) 1999-08-20 2002-09-26 Intech Thueringen Gmbh Verfahren zur Erzeugung von Meßsignalen in Magnetfeldern mit einem NMR-Mouse-Gerät
US6817866B1 (en) * 1999-11-23 2004-11-16 Fonar Corporation Mobile MRI system and method of promoting use of MRI system
GB2357149A (en) 1999-12-08 2001-06-13 Topspin Medical MRI using non-homogeneous static field
US6704594B1 (en) 2000-11-06 2004-03-09 Topspin Medical (Israel) Limited Magnetic resonance imaging device
US6377048B1 (en) * 2000-11-08 2002-04-23 Topspin Medical (Israel) Limited Magnetic resonance imaging device for operation in external static magnetic fields
US6785578B2 (en) 2001-10-09 2004-08-31 General Electric Company User input device for controlling medical imaging equipment motion
US6518757B1 (en) * 2002-03-08 2003-02-11 Schlumberger Technology Corporation Use of CPMG sequences with phase cycled refocusing pulses in inside-out NMR for phase encoded imaging and to eliminate coherent ringing within one scan
US6977503B2 (en) * 2003-02-10 2005-12-20 Quantum Magnetics, Inc. System and method for single-sided magnetic resonance imaging
US20080234569A1 (en) * 2004-01-20 2008-09-25 Topspin Medical (Israel) Ltd. Mri Probe for Prostate Imaging
WO2006028588A2 (en) 2004-07-22 2006-03-16 The Regents Of The University Of California Nuclear magnetic resonance detection in inhomogeneous magnetic fields
US20060084866A1 (en) * 2004-10-18 2006-04-20 Gadi Lewkonya Expanding imaging probe
US20060084861A1 (en) * 2004-10-18 2006-04-20 Topspin Medical (Isreal) Ltd. Magnet and coil configurations for MRI probes
US7187169B2 (en) 2004-11-03 2007-03-06 The Regents Of The University Of California NMR and MRI apparatus and method
US20060155186A1 (en) * 2005-01-12 2006-07-13 James Timothy W Bone health assessment using spatial-frequency analysis
US20060241377A1 (en) * 2005-03-08 2006-10-26 James Timothy W System and method for bone strength assessment
US7309986B2 (en) * 2005-03-21 2007-12-18 The Trustees Of The University Of Pennsylvania Methods and apparatus for magnetic resonance imaging in inhomogeneous fields
WO2007061438A2 (en) * 2005-11-16 2007-05-31 The Trustees Of The University Of Pennsylvania Slant-slice imaging with inhomogeneous fields
KR101297143B1 (ko) * 2005-11-27 2013-08-21 아쿠이타스 메디컬 리미티드 공간 주파수 분석을 이용한 뼈와 같은 구조의 평가
US7525310B2 (en) * 2006-03-04 2009-04-28 Raju Viswanathan Signal acquisition and processing method and apparatus for magnetic resonance imaging
WO2008059474A1 (en) * 2006-11-15 2008-05-22 Doron Kwiat Magnet assembly being made from a ferromagnetic or rare-earth material
BRPI0810892A2 (pt) * 2007-05-02 2014-10-21 Derek D Feng Método e aparelho para rmn/mri de precisão contínua baseado na teoria quântica
WO2008140799A1 (en) * 2007-05-10 2008-11-20 Oni Medical Systems, Inc. Dedicated system for msk joint imaging
WO2009037711A2 (en) * 2007-09-20 2009-03-26 Topspin Medical (Israel) Ltd. Mri image reconstruction method involving nonlinear encoding gradients or phase cycling
US8299681B2 (en) 2009-03-06 2012-10-30 Life Services, LLC Remotely adjustable reactive and resistive electrical elements and method
DE102009026897A1 (de) * 2009-06-10 2010-12-16 Sirona Dental Systems Gmbh Sensor sowie Magnetfeldeinheit zur Verwendung innerhalb eines Magnetresonanztomographie-Systems oder eines Magnetresonanzspektroskopie-Systems
US8854042B2 (en) 2010-08-05 2014-10-07 Life Services, LLC Method and coils for human whole-body imaging at 7 T
US8604791B2 (en) 2010-09-09 2013-12-10 Life Services, LLC Active transmit elements for MRI coils and other antenna devices
US9097769B2 (en) 2011-02-28 2015-08-04 Life Services, LLC Simultaneous TX-RX for MRI systems and other antenna devices
US9500727B2 (en) 2012-04-20 2016-11-22 Regents Of The University Of Minnesota System and method for control of RF circuits for use with an MRI system
US10596393B2 (en) 2012-07-27 2020-03-24 University Health Network Radiotherapy system integrating a radiation source with a magnetic resonance imaging apparatus with movable magnet components
DE102013226745A1 (de) * 2013-12-19 2015-06-25 Sirona Dental Systems Gmbh Magnetresonanz-Abtastvorrichtung für die medizinische Diagnostik
US10191128B2 (en) 2014-02-12 2019-01-29 Life Services, LLC Device and method for loops-over-loops MRI coils
US10288711B1 (en) 2015-04-30 2019-05-14 Life Services, LLC Device and method for simultaneous TX/RX in strongly coupled MRI coil loops
US10827948B1 (en) 2015-11-25 2020-11-10 Life Services, LLC Method and apparatus for multi-part close fitting head coil
US10324146B2 (en) 2016-01-12 2019-06-18 Life Services, LLC Method and apparatus for multi-part body coil
US10488352B2 (en) * 2017-01-27 2019-11-26 Saudi Arabian Oil Company High spatial resolution nuclear magnetic resonance logging
US11609291B2 (en) 2019-03-25 2023-03-21 Promaxo, Inc. Single-sided fast MRI gradient field coils and applications thereof
EP4067925A1 (de) 2021-03-29 2022-10-05 Siemens Healthcare GmbH Magnetresonanztomografievorrichtung mit einheit zur asymmetrischen felderzeugung

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51127785A (en) * 1975-04-30 1976-11-08 Hokkaido Daigaku Measuring method of information around the surface of the substances t o be measured applying the nucleus magnet resonance phenomenon
US4296378A (en) * 1979-04-05 1981-10-20 Southwest Research Institute Apparatus providing enhanced detection of specimens in inhomogeneous fields
US4379262A (en) * 1979-08-10 1983-04-05 Picker International Limited Nuclear magnetic resonance systems
US4471306A (en) * 1982-02-03 1984-09-11 General Electric Company Method of NMR imaging which overcomes T2 * effects in an inhomogeneous static magnetic field
IL68344A (en) * 1983-04-10 1988-10-31 Yeda Res & Dev Method to eliminate the effects of magnetic field inhomogeneities in nmr imaging
US4521733A (en) * 1983-05-23 1985-06-04 General Electric Company NMR Imaging of the transverse relaxation time using multiple spin echo sequences
US4542343A (en) * 1983-06-17 1985-09-17 Chevron Research Company Computer-controlled, portable pulsed NMR instrument and method of use wherein depolarization is ultrashortened using pseudo randomly spaced and oriented RF depolarization pulses
JPS6024831A (ja) * 1983-07-20 1985-02-07 横河メデイカルシステム株式会社 核磁気共鳴検出器
US4721914A (en) * 1984-05-01 1988-01-26 The United States Of America As Represented By The United States Department Of Energy Apparatus for unilateral generation of a homogeneous magnetic field
EP0182873A1 (de) * 1984-06-01 1986-06-04 Advanced Nmr Systems Inc. Nmr-fourierbildformungssystem aus mehrfachen echos
US4608991A (en) * 1984-09-26 1986-09-02 Southwest Research Institute Method for in-vivo NMR measurements in the human breast to screen for small breast cancer in an otherwise healthy breast
US4651096A (en) * 1985-02-19 1987-03-17 Resonex Imaging method for nuclear magnetic resonance utilizing balanced gradient fields
US4684891A (en) * 1985-07-31 1987-08-04 The Regents Of The University Of California Rapid magnetic resonance imaging using multiple phase encoded spin echoes in each of plural measurement cycles
US4703270A (en) * 1986-04-18 1987-10-27 The University Of British Columbia Zero quantum NMR imaging and spectroscopy in a low homogeneity magnetic field
IL79732A (en) * 1986-08-15 1990-03-19 Elscint Ltd Magnetic resonance imaging with driven equilibrium
US4717877A (en) * 1986-09-25 1988-01-05 Numar Corporation Nuclear magnetic resonance sensing apparatus and techniques
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
US4868501A (en) * 1988-06-10 1989-09-19 Leland Stanford University Method and means for magnetic resonance spin-echo imaging using an adiabatic three pi pulse sequence
NL8802036A (nl) * 1988-08-17 1990-03-16 Philips Nv Werkwijze voor hetronucleaire ontkoppeling in magnetische resonantiespectroscopie en inrichting voor het bepalen van een spectrum.
US5023554A (en) * 1989-05-22 1991-06-11 The Reagents Of The University Of California Fringe field MRI
US4973906A (en) * 1989-08-17 1990-11-27 General Electric Company Flow compensated NMR fast pulse sequence
US5160888A (en) * 1991-04-29 1992-11-03 Bruker Instruments, Inc. Method and apparatus for one sided magnetic resonance imaging
US5168226A (en) * 1991-05-22 1992-12-01 General Electric Acquisition of multiple images in fast spin echo nmr scans
US5270654A (en) * 1991-07-05 1993-12-14 Feinberg David A Ultra-fast multi-section MRI using gradient and spin echo (grase) imaging
US5387865A (en) * 1991-09-20 1995-02-07 Exxon Research And Engineering Company Permeability determination from NMR relaxation measurements for fluids in porous media
AU655079B2 (en) * 1991-10-25 1994-12-01 University Of Queensland, The Compensation of pulsed linear magnet field gradient inducted eddy currents in NMR systems

Also Published As

Publication number Publication date
CA2113584C (en) 1999-03-16
JP2693370B2 (ja) 1997-12-24
EP0610012A1 (de) 1994-08-10
DE69407202T2 (de) 1998-04-30
DE69407202D1 (de) 1998-01-22
BR9400384A (pt) 1994-08-23
AU5396994A (en) 1994-08-04
CA2113584A1 (en) 1994-08-02
EP0610012B1 (de) 1997-12-10
AU659593B2 (en) 1995-05-18
JPH0779954A (ja) 1995-03-28
US5304930A (en) 1994-04-19

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