WO2001016616A3 - Active acoustic control for gradient coil structures in mri - Google Patents

Active acoustic control for gradient coil structures in mri Download PDF

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Publication number
WO2001016616A3
WO2001016616A3 PCT/GB2000/003261 GB0003261W WO0116616A3 WO 2001016616 A3 WO2001016616 A3 WO 2001016616A3 GB 0003261 W GB0003261 W GB 0003261W WO 0116616 A3 WO0116616 A3 WO 0116616A3
Authority
WO
WIPO (PCT)
Prior art keywords
mri
acoustic control
active acoustic
gradient coil
coil structures
Prior art date
Application number
PCT/GB2000/003261
Other languages
French (fr)
Other versions
WO2001016616A2 (en
Inventor
Peter Mansfield
Original Assignee
Peter Mansfield
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 Peter Mansfield filed Critical Peter Mansfield
Priority to AU67122/00A priority Critical patent/AU6712200A/en
Publication of WO2001016616A2 publication Critical patent/WO2001016616A2/en
Publication of WO2001016616A3 publication Critical patent/WO2001016616A3/en

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
    • G01R33/385—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
    • 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
    • G01R33/3858—Manufacture and installation of gradient coils, means for providing mechanical support to parts of the gradient-coil assembly
    • 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
    • G01R33/421—Screening of main or gradient magnetic field
    • G01R33/4215—Screening of main or gradient magnetic field of the gradient magnetic field, e.g. using passive or active shielding of the gradient magnetic field

Abstract

An active acoustic control system for MRI coils includes means for reducing the noise created at the surfaces of support structures within which the coils are mounted.
PCT/GB2000/003261 1999-08-27 2000-08-25 Active acoustic control for gradient coil structures in mri WO2001016616A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU67122/00A AU6712200A (en) 1999-08-27 2000-08-25 Active acoustic control for gradient coil structures in mri

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9920185.7 1999-08-27
GBGB9920185.7A GB9920185D0 (en) 1999-08-27 1999-08-27 Active acoustic control for gradient coil structures in MRI

Publications (2)

Publication Number Publication Date
WO2001016616A2 WO2001016616A2 (en) 2001-03-08
WO2001016616A3 true WO2001016616A3 (en) 2001-07-26

Family

ID=10859822

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2000/003261 WO2001016616A2 (en) 1999-08-27 2000-08-25 Active acoustic control for gradient coil structures in mri

Country Status (3)

Country Link
AU (1) AU6712200A (en)
GB (1) GB9920185D0 (en)
WO (1) WO2001016616A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102906588B (en) * 2010-05-20 2015-12-02 皇家飞利浦电子股份有限公司 Magnetic resonance imaging gradient coil, magnet assembly and system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9923648D0 (en) * 1999-10-07 1999-12-08 Magnex Scient Limited Acoustic liner
US20090209842A1 (en) 2006-07-07 2009-08-20 Koninklijke Philips Electronics N. V. Mri gradient coil assembly with reduced acoustic noise

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4774486A (en) * 1985-06-04 1988-09-27 Mitsubishi Denki Kabushiki Kaisha Coil mounting for NMR diagnostic apparatus
JPH01208817A (en) * 1988-02-17 1989-08-22 Fuji Electric Co Ltd Magnet device for nuclear magnetic resonance type diagnostic apparatus
JPH0252638A (en) * 1988-08-16 1990-02-22 Toshiba Corp Magnetic resonance imaging device
JPH02224643A (en) * 1989-02-27 1990-09-06 Shimadzu Corp Nuclear magnetic resonance tomograph
JPH0382448A (en) * 1989-08-25 1991-04-08 Hitachi Ltd Inclined magnetic field coil of mri
JPH05132A (en) * 1991-06-24 1993-01-08 Hitachi Ltd Magnetic resonance imaging apparatus
US5256969A (en) * 1989-12-04 1993-10-26 Hitachi, Ltd. Gradient magnetic field coil for magnetic resonance imaging system
US5331281A (en) * 1991-09-04 1994-07-19 Hitachi, Ltd. Gradient magnetic field generating coil assembly of magnetic resonance imaging apparatus
WO1996031785A1 (en) * 1995-04-01 1996-10-10 Peter Mansfield Active acoustic control in quiet gradient coil design for mri
US5793210A (en) * 1996-08-13 1998-08-11 General Electric Company Low noise MRI scanner

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4774486A (en) * 1985-06-04 1988-09-27 Mitsubishi Denki Kabushiki Kaisha Coil mounting for NMR diagnostic apparatus
JPH01208817A (en) * 1988-02-17 1989-08-22 Fuji Electric Co Ltd Magnet device for nuclear magnetic resonance type diagnostic apparatus
JPH0252638A (en) * 1988-08-16 1990-02-22 Toshiba Corp Magnetic resonance imaging device
JPH02224643A (en) * 1989-02-27 1990-09-06 Shimadzu Corp Nuclear magnetic resonance tomograph
JPH0382448A (en) * 1989-08-25 1991-04-08 Hitachi Ltd Inclined magnetic field coil of mri
US5256969A (en) * 1989-12-04 1993-10-26 Hitachi, Ltd. Gradient magnetic field coil for magnetic resonance imaging system
JPH05132A (en) * 1991-06-24 1993-01-08 Hitachi Ltd Magnetic resonance imaging apparatus
US5331281A (en) * 1991-09-04 1994-07-19 Hitachi, Ltd. Gradient magnetic field generating coil assembly of magnetic resonance imaging apparatus
WO1996031785A1 (en) * 1995-04-01 1996-10-10 Peter Mansfield Active acoustic control in quiet gradient coil design for mri
US5793210A (en) * 1996-08-13 1998-08-11 General Electric Company Low noise MRI scanner

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 013, no. 513 (E - 847) 16 November 1989 (1989-11-16) *
PATENT ABSTRACTS OF JAPAN vol. 014, no. 220 (C - 0717) 10 May 1990 (1990-05-10) *
PATENT ABSTRACTS OF JAPAN vol. 014, no. 535 (C - 0781) 26 November 1990 (1990-11-26) *
PATENT ABSTRACTS OF JAPAN vol. 015, no. 252 (C - 0844) 26 June 1991 (1991-06-26) *
PATENT ABSTRACTS OF JAPAN vol. 017, no. 247 (C - 1059) 18 May 1993 (1993-05-18) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102906588B (en) * 2010-05-20 2015-12-02 皇家飞利浦电子股份有限公司 Magnetic resonance imaging gradient coil, magnet assembly and system

Also Published As

Publication number Publication date
GB9920185D0 (en) 1999-10-27
WO2001016616A2 (en) 2001-03-08
AU6712200A (en) 2001-03-26

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