JP5078141B2 - 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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JP5078141B2
JP5078141B2 JP2007312795A JP2007312795A JP5078141B2 JP 5078141 B2 JP5078141 B2 JP 5078141B2 JP 2007312795 A JP2007312795 A JP 2007312795A JP 2007312795 A JP2007312795 A JP 2007312795A JP 5078141 B2 JP5078141 B2 JP 5078141B2
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mpg
pattern
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magnetic resonance
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Japanese (ja)
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JP2008136871A5 (enExample
JP2008136871A (ja
Inventor
ウェイグォ・ツァン
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Canon Medical Systems Corp
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Toshiba Medical Systems Corp
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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
    • G01R33/44—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
    • G01R33/56—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution
    • G01R33/563—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution of moving material, e.g. flow contrast angiography
    • G01R33/56341—Diffusion 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
    • G01R33/54—Signal processing systems, e.g. using pulse sequences ; Generation or control of pulse sequences; Operator console
    • G01R33/56—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution
    • G01R33/561—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution by reduction of the scanning time, i.e. fast acquiring systems, e.g. using echo-planar pulse sequences
    • G01R33/5615—Echo train techniques involving acquiring plural, differently encoded, echo signals after one RF excitation, e.g. using gradient refocusing in echo planar imaging [EPI], RF refocusing in rapid acquisition with relaxation enhancement [RARE] or using both RF and gradient refocusing in gradient and spin echo imaging [GRASE]
    • G01R33/5616—Echo train techniques involving acquiring plural, differently encoded, echo signals after one RF excitation, e.g. using gradient refocusing in echo planar imaging [EPI], RF refocusing in rapid acquisition with relaxation enhancement [RARE] or using both RF and gradient refocusing in gradient and spin echo imaging [GRASE] using gradient refocusing, e.g. EPI
    • 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
    • G01R33/56—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution
    • G01R33/561—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution by reduction of the scanning time, i.e. fast acquiring systems, e.g. using echo-planar pulse sequences
    • G01R33/5615—Echo train techniques involving acquiring plural, differently encoded, echo signals after one RF excitation, e.g. using gradient refocusing in echo planar imaging [EPI], RF refocusing in rapid acquisition with relaxation enhancement [RARE] or using both RF and gradient refocusing in gradient and spin echo imaging [GRASE]
    • G01R33/5617—Echo train techniques involving acquiring plural, differently encoded, echo signals after one RF excitation, e.g. using gradient refocusing in echo planar imaging [EPI], RF refocusing in rapid acquisition with relaxation enhancement [RARE] or using both RF and gradient refocusing in gradient and spin echo imaging [GRASE] using RF refocusing, e.g. RARE
    • 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
    • G01R33/543—Control of the operation of the MR system, e.g. setting of acquisition parameters prior to or during MR data acquisition, dynamic shimming, use of one or more scout images for scan plane prescription

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • General Health & Medical Sciences (AREA)
  • Radiology & Medical Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Vascular Medicine (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
JP2007312795A 2006-12-03 2007-12-03 磁気共鳴イメージング装置 Active JP5078141B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/566,225 US7355407B1 (en) 2006-12-03 2006-12-03 Methods and apparatus for single-shot magnetic resonance imaging with optimized isotropic diffusion weighting
US11/566,225 2006-12-03

Publications (3)

Publication Number Publication Date
JP2008136871A JP2008136871A (ja) 2008-06-19
JP2008136871A5 JP2008136871A5 (enExample) 2011-01-20
JP5078141B2 true JP5078141B2 (ja) 2012-11-21

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JP2007312795A Active JP5078141B2 (ja) 2006-12-03 2007-12-03 磁気共鳴イメージング装置

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US (1) US7355407B1 (enExample)
JP (1) JP5078141B2 (enExample)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7355407B1 (en) * 2006-12-03 2008-04-08 Toshiba Medical Systems Corp. Methods and apparatus for single-shot magnetic resonance imaging with optimized isotropic diffusion weighting
SE531190C2 (sv) * 2007-05-31 2009-01-13 Colloidal Resource Ab Metod, system, datoravläsbart medium och användning för magnetisk resonanstomografi
JP2009050615A (ja) * 2007-08-29 2009-03-12 Ge Medical Systems Global Technology Co Llc 磁気共鳴イメージング装置および磁気共鳴画像表示方法
JP5481117B2 (ja) * 2008-09-29 2014-04-23 株式会社東芝 磁気共鳴診断装置およびその制御方法
JP5562598B2 (ja) 2008-10-24 2014-07-30 株式会社東芝 画像表示装置、画像表示方法および磁気共鳴イメージング装置
KR101845222B1 (ko) * 2011-11-09 2018-04-05 삼성전자주식회사 고차 확산자기공명 영상의 인공물 저감 장치 및 방법
SE537065C2 (sv) * 2012-05-04 2014-12-23 Cr Dev Ab Pulssekvensförfarande för MRI
WO2016104798A1 (ja) * 2014-12-26 2016-06-30 株式会社東芝 磁気共鳴イメージング装置、拡散強調画像の生成方法及び画像処理装置
JP6784697B2 (ja) 2015-05-12 2020-11-11 ハイパーファイン リサーチ，インコーポレイテッド 高周波コイルの方法および装置
DE102016218713B4 (de) * 2016-09-28 2019-02-07 Siemens Healthcare Gmbh Diffusionsgewichtete Magnetresonanz-Messung
EP3538910B1 (en) * 2016-11-09 2023-06-07 Random Walk Imaging AB A method of performing diffusion weighted magnetic resonance measurements on a sample

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3369688B2 (ja) * 1993-12-27 2003-01-20 株式会社日立製作所 核磁気共鳴を用いた検査装置
JPH09285457A (ja) * 1996-04-25 1997-11-04 Toshiba Corp 磁気共鳴イメージング装置
US5833609A (en) * 1996-11-26 1998-11-10 Picker International, Inc. Rotating diffusion MR imaging reduced motion artifacts
DE19834698C2 (de) * 1997-08-19 2001-06-21 Siemens Ag Diffusionserfassung mittels magnetischer Resonanz
US6160397A (en) * 1998-12-30 2000-12-12 General Electric Company Fast spin echo prescan for magnetic resonance imaging systems
US6288540B1 (en) * 1999-05-21 2001-09-11 University Of Rochester Optimized orthogonal gradient technique for fast quantitative diffusion MRI on a clinical scanner
DE10109511C2 (de) * 2001-02-28 2003-03-27 Max Planck Gesellschaft Verfahren und Gerät zum Gewinnen von Daten für diffusionsgewichtete Magnetresonanz-Bildgebung
WO2002082376A2 (en) * 2001-04-06 2002-10-17 Regents Of The University Of California Method for analyzing mri diffusion data
US6806705B2 (en) * 2002-05-15 2004-10-19 Koninklijke Philips Electronics N.V. Diffusion tensor magnetic resonance imaging including local weighted interpolation
US6969991B2 (en) * 2002-12-11 2005-11-29 The Board Of Trustees Of The Leland Stanford Junior University Correction of the effect of spatial gradient field distortions in diffusion-weighted imaging
US7355407B1 (en) * 2006-12-03 2008-04-08 Toshiba Medical Systems Corp. Methods and apparatus for single-shot magnetic resonance imaging with optimized isotropic diffusion weighting

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US7355407B1 (en) 2008-04-08
JP2008136871A (ja) 2008-06-19

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