GB2288464B - Improvements in or relating to magnetic resonance imaging apparatus - Google Patents

Improvements in or relating to magnetic resonance imaging apparatus

Info

Publication number
GB2288464B
GB2288464B GB9408543A GB9408543A GB2288464B GB 2288464 B GB2288464 B GB 2288464B GB 9408543 A GB9408543 A GB 9408543A GB 9408543 A GB9408543 A GB 9408543A GB 2288464 B GB2288464 B GB 2288464B
Authority
GB
United Kingdom
Prior art keywords
relating
magnetic resonance
imaging apparatus
resonance imaging
magnetic
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.)
Revoked
Application number
GB9408543A
Other versions
GB9408543D0 (en
GB2288464A (en
Inventor
Jonathan Leslie Allis
Philip Nigel Smith
Graham Gilgrass
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens Magnet Technology Ltd
Original Assignee
Oxford Magnet Technology Ltd
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 Oxford Magnet Technology Ltd filed Critical Oxford Magnet Technology Ltd
Publication of GB9408543D0 publication Critical patent/GB9408543D0/en
Priority to DE1995619121 priority Critical patent/DE69519121T2/en
Priority to EP19950104102 priority patent/EP0677751B1/en
Priority to JP7087102A priority patent/JPH0838454A/en
Publication of GB2288464A publication Critical patent/GB2288464A/en
Application granted granted Critical
Publication of GB2288464B publication Critical patent/GB2288464B/en
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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
    • G01R33/387—Compensation of inhomogeneities
    • G01R33/3873—Compensation of inhomogeneities using ferromagnetic bodies ; Passive shimming

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
GB9408543A 1994-04-13 1994-04-29 Improvements in or relating to magnetic resonance imaging apparatus Revoked GB2288464B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE1995619121 DE69519121T2 (en) 1994-04-13 1995-03-20 Improvements in or related to magnetic resonance imaging devices
EP19950104102 EP0677751B1 (en) 1994-04-13 1995-03-20 Improvements in or relating to magnetic resonance imaging apparatus
JP7087102A JPH0838454A (en) 1994-04-13 1995-04-12 Magnet of magnetic resonance image device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9407309A GB9407309D0 (en) 1994-04-13 1994-04-13 Improvements in or relating to magnetic resonance imaging apparatus

Publications (3)

Publication Number Publication Date
GB9408543D0 GB9408543D0 (en) 1994-06-22
GB2288464A GB2288464A (en) 1995-10-18
GB2288464B true GB2288464B (en) 1998-01-28

Family

ID=10753466

Family Applications (2)

Application Number Title Priority Date Filing Date
GB9407309A Pending GB9407309D0 (en) 1994-04-13 1994-04-13 Improvements in or relating to magnetic resonance imaging apparatus
GB9408543A Revoked GB2288464B (en) 1994-04-13 1994-04-29 Improvements in or relating to magnetic resonance imaging apparatus

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB9407309A Pending GB9407309D0 (en) 1994-04-13 1994-04-13 Improvements in or relating to magnetic resonance imaging apparatus

Country Status (1)

Country Link
GB (2) GB9407309D0 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3769831B2 (en) * 1996-04-08 2006-04-26 タカタ株式会社 Air bag and air bag device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0216404A1 (en) * 1985-08-26 1987-04-01 Koninklijke Philips Electronics N.V. Magnetic resonance imaging apparatus including-homogenizing magnetic elements
GB2219406A (en) * 1988-04-08 1989-12-06 Magnex Scient Limited Electromagnets
US4931759A (en) * 1989-04-06 1990-06-05 General Atomics Magnetic resonance imaging magnet having minimally symmetric ferromagnetic shield

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0216404A1 (en) * 1985-08-26 1987-04-01 Koninklijke Philips Electronics N.V. Magnetic resonance imaging apparatus including-homogenizing magnetic elements
GB2219406A (en) * 1988-04-08 1989-12-06 Magnex Scient Limited Electromagnets
US4931759A (en) * 1989-04-06 1990-06-05 General Atomics Magnetic resonance imaging magnet having minimally symmetric ferromagnetic shield

Also Published As

Publication number Publication date
GB9408543D0 (en) 1994-06-22
GB9407309D0 (en) 1994-06-08
GB2288464A (en) 1995-10-18

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Legal Events

Date Code Title Description
773K Patent revoked under sect. 73(2)/1977