JP6651330B2 - 磁気共鳴イメージング装置 - Google Patents

磁気共鳴イメージング装置 Download PDF

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JP6651330B2
JP6651330B2 JP2015223393A JP2015223393A JP6651330B2 JP 6651330 B2 JP6651330 B2 JP 6651330B2 JP 2015223393 A JP2015223393 A JP 2015223393A JP 2015223393 A JP2015223393 A JP 2015223393A JP 6651330 B2 JP6651330 B2 JP 6651330B2
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temperature
protocol
magnetic field
coil
gradient magnetic
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Japanese (ja)
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JP2017086701A (ja
JP2017086701A5 (enExample
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博志 草原
博志 草原
雄紀 高井
雄紀 高井
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Canon Medical Systems Corp
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Canon Medical Systems Corp
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Priority to US15/349,294 priority patent/US10481229B2/en
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Publication of JP2017086701A5 publication Critical patent/JP2017086701A5/ja
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    • 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
    • G01R33/3856—Means for cooling the gradient coils or thermal shielding of the gradient 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
    • G01R33/283—Intercom or optical viewing arrangements, structurally associated with NMR apparatus
    • 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
    • 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
    • G01R33/4816—NMR imaging of samples with ultrashort relaxation times such as solid samples, e.g. MRI using ultrashort TE [UTE], single point imaging, constant time 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
    • G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/48—NMR imaging systems
    • G01R33/4818—MR characterised by data acquisition along a specific k-space trajectory or by the temporal order of k-space coverage, e.g. centric or segmented coverage of k-space
    • 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
    • G01R33/4818—MR characterised by data acquisition along a specific k-space trajectory or by the temporal order of k-space coverage, e.g. centric or segmented coverage of k-space
    • G01R33/482—MR characterised by data acquisition along a specific k-space trajectory or by the temporal order of k-space coverage, e.g. centric or segmented coverage of k-space using a Cartesian trajectory
    • 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
    • G01R33/4818—MR characterised by data acquisition along a specific k-space trajectory or by the temporal order of k-space coverage, e.g. centric or segmented coverage of k-space
    • G01R33/482—MR characterised by data acquisition along a specific k-space trajectory or by the temporal order of k-space coverage, e.g. centric or segmented coverage of k-space using a Cartesian trajectory
    • G01R33/4822—MR characterised by data acquisition along a specific k-space trajectory or by the temporal order of k-space coverage, e.g. centric or segmented coverage of k-space using a Cartesian trajectory in three dimensions
    • 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
    • G01R33/4818—MR characterised by data acquisition along a specific k-space trajectory or by the temporal order of k-space coverage, e.g. centric or segmented coverage of k-space
    • G01R33/4824—MR characterised by data acquisition along a specific k-space trajectory or by the temporal order of k-space coverage, e.g. centric or segmented coverage of k-space using a non-Cartesian trajectory
    • 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
    • G01R33/4818—MR characterised by data acquisition along a specific k-space trajectory or by the temporal order of k-space coverage, e.g. centric or segmented coverage of k-space
    • G01R33/4824—MR characterised by data acquisition along a specific k-space trajectory or by the temporal order of k-space coverage, e.g. centric or segmented coverage of k-space using a non-Cartesian trajectory
    • G01R33/4826—MR characterised by data acquisition along a specific k-space trajectory or by the temporal order of k-space coverage, e.g. centric or segmented coverage of k-space using a non-Cartesian trajectory in three dimensions
    • 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
    • G01R33/54—Signal processing systems, e.g. using pulse sequences ; Generation or control of pulse sequences; Operator console
    • G01R33/546—Interface between the MR system and the user, e.g. for controlling the operation of the MR system or for the design of pulse sequences
    • 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
    • G01R33/483—NMR imaging systems with selection of signals or spectra from particular regions of the volume, e.g. in vivo spectroscopy
    • 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
    • G01R33/483—NMR imaging systems with selection of signals or spectra from particular regions of the volume, e.g. in vivo spectroscopy
    • G01R33/4831—NMR imaging systems with selection of signals or spectra from particular regions of the volume, e.g. in vivo spectroscopy using B1 gradients, e.g. rotating frame techniques, use of surface coils

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  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
JP2015223393A 2015-11-13 2015-11-13 磁気共鳴イメージング装置 Active JP6651330B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2015223393A JP6651330B2 (ja) 2015-11-13 2015-11-13 磁気共鳴イメージング装置
US15/349,294 US10481229B2 (en) 2015-11-13 2016-11-11 Magnetic-resonance imaging apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2015223393A JP6651330B2 (ja) 2015-11-13 2015-11-13 磁気共鳴イメージング装置

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JP2017086701A JP2017086701A (ja) 2017-05-25
JP2017086701A5 JP2017086701A5 (enExample) 2018-12-27
JP6651330B2 true JP6651330B2 (ja) 2020-02-19

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Publication number Priority date Publication date Assignee Title
US10712412B2 (en) * 2018-04-23 2020-07-14 Wisconsin Alumni Research Foundation System and method for stimulated echo based mapping (STEM) using magnetic resonance imaging (MRI)
US11703393B2 (en) * 2018-06-01 2023-07-18 Southwest Medical Resources, Inc. System and method for monitoring cooling system
EP3608929B1 (en) * 2018-08-09 2020-09-30 Siemens Healthcare GmbH A directly coolable multifilament conductor means
US11202583B2 (en) * 2019-02-07 2021-12-21 Yale University Magnetic resonance gradient accessory providing tailored gradients for diffusion encoding
GB2624749A (en) * 2022-09-19 2024-05-29 Bright Stewart System and methods for monitoring medical equipment by using cloud-based telemetry

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0698871A (ja) * 1992-09-18 1994-04-12 Hitachi Medical Corp 磁気共鳴イメ−ジング装置
JP2000023939A (ja) 1998-07-09 2000-01-25 Hitachi Medical Corp 磁気共鳴イメージング装置
JP4575579B2 (ja) 2000-11-16 2010-11-04 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 磁気共鳴撮影装置
JP5179827B2 (ja) 2006-10-13 2013-04-10 株式会社東芝 磁気共鳴装置
US7741847B2 (en) 2006-10-13 2010-06-22 Kabushiki Kaisha Toshiba Magnetic resonance apparatus with temperature controlled magnet shim pieces
EP2092360B1 (en) 2006-11-10 2017-07-12 Koninklijke Philips N.V. Preventing quench in a magnetic resonance examination system
JP5384043B2 (ja) * 2008-06-24 2014-01-08 株式会社日立メディコ 磁気共鳴イメージング装置
JP2010269136A (ja) 2009-04-23 2010-12-02 Toshiba Corp 磁気共鳴イメージング装置
JP2011010760A (ja) * 2009-06-30 2011-01-20 Toshiba Corp 磁気共鳴イメージング装置
JP5597515B2 (ja) 2009-12-17 2014-10-01 株式会社東芝 磁気共鳴イメージング装置、および、磁気共鳴イメージング方法
JP6230811B2 (ja) * 2013-04-26 2017-11-15 東芝メディカルシステムズ株式会社 磁気共鳴イメージング装置
JP6058477B2 (ja) * 2013-06-14 2017-01-11 東芝メディカルシステムズ株式会社 磁気共鳴イメージング装置
JP2015085137A (ja) * 2013-11-01 2015-05-07 株式会社東芝 磁気共鳴イメージング装置
JP6621978B2 (ja) * 2013-12-16 2019-12-18 キヤノンメディカルシステムズ株式会社 Ｍｒｉ装置
JP6433679B2 (ja) * 2014-05-02 2018-12-05 キヤノンメディカルシステムズ株式会社 磁気共鳴イメージング装置
US9636039B2 (en) * 2014-08-07 2017-05-02 Siemens Aktiengesellschaft Method and apparatus to acquire magnetic resonance images in a session, with acquisition of a consistently valid reference scan
JP6495057B2 (ja) * 2015-03-16 2019-04-03 キヤノンメディカルシステムズ株式会社 Ｍｒｉ装置及び撮像時間短縮方法
JP6639830B2 (ja) * 2015-08-10 2020-02-05 キヤノンメディカルシステムズ株式会社 磁気共鳴イメージング装置
JP6615530B2 (ja) 2015-08-10 2019-12-04 キヤノンメディカルシステムズ株式会社 磁気共鳴イメージング装置

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US10481229B2 (en) 2019-11-19
US20170139023A1 (en) 2017-05-18

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