WO2009051123A1 - 磁気共鳴撮影装置 - Google Patents

磁気共鳴撮影装置 Download PDF

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Publication number
WO2009051123A1
WO2009051123A1 PCT/JP2008/068619 JP2008068619W WO2009051123A1 WO 2009051123 A1 WO2009051123 A1 WO 2009051123A1 JP 2008068619 W JP2008068619 W JP 2008068619W WO 2009051123 A1 WO2009051123 A1 WO 2009051123A1
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WO
WIPO (PCT)
Prior art keywords
measurement
sequence
imaging
region
imaging device
Prior art date
Application number
PCT/JP2008/068619
Other languages
English (en)
French (fr)
Inventor
Hiroyuki Itagaki
Original Assignee
Hitachi Medical Corporation
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 Hitachi Medical Corporation filed Critical Hitachi Medical Corporation
Priority to US12/738,571 priority Critical patent/US8384382B2/en
Priority to JP2009538101A priority patent/JP5237957B2/ja
Publication of WO2009051123A1 publication Critical patent/WO2009051123A1/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
    • G01R33/44—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
    • 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
    • G01R33/5611—Parallel magnetic resonance imaging, e.g. sensitivity encoding [SENSE], simultaneous acquisition of spatial harmonics [SMASH], unaliasing by Fourier encoding of the overlaps using the temporal dimension [UNFOLD], k-t-broad-use linear acquisition speed-up technique [k-t-BLAST], k-t-SENSE
    • 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
    • G01R33/56—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
    • G01R33/56308—Characterization of motion or flow; Dynamic imaging
    • G01R33/56333—Involving spatial modulation of the magnetization within an imaged region, e.g. spatial modulation of magnetization [SPAMM] tagging
    • 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
    • G01R33/54—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
    • G01R33/567—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution gated by physiological signals, i.e. synchronization of acquired MR data with periodical motion of an object of interest, e.g. monitoring or triggering system for cardiac or respiratory gating
    • G01R33/5673—Gating or triggering based on a physiological signal other than an MR signal, e.g. ECG gating or motion monitoring using optical systems for monitoring the motion of a fiducial marker

Landscapes

  • 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)

Abstract

　撮像パルスシーケンスは、撮像対象の核磁化を変調するタギングシーケンスと、k空間データの一部を非計測とする画像化シーケンスとを含むものであり、 　制御手段は、 　変調された核磁化の影響を前記再構成する画像に反映させるために必須となるk空間の計測領域(計測必須領域)を特定する計測必須領域特定手段と、 　計測必須領域特定手段で特定された計測領域を前記画像化シーケンス実行時に計測するよう当該画像化シーケンスを変更するシーケンス変更手段と、を備える。
PCT/JP2008/068619 2007-10-18 2008-10-15 磁気共鳴撮影装置 WO2009051123A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US12/738,571 US8384382B2 (en) 2007-10-18 2008-10-15 Magnetic resonance imaging apparatus
JP2009538101A JP5237957B2 (ja) 2007-10-18 2008-10-15 磁気共鳴撮影装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-271215 2007-10-18
JP2007271215 2007-10-18

Publications (1)

Publication Number Publication Date
WO2009051123A1 true WO2009051123A1 (ja) 2009-04-23

Family

ID=40567385

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/068619 WO2009051123A1 (ja) 2007-10-18 2008-10-15 磁気共鳴撮影装置

Country Status (3)

Country Link
US (1) US8384382B2 (ja)
JP (1) JP5237957B2 (ja)
WO (1) WO2009051123A1 (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014054565A (ja) * 2009-09-30 2014-03-27 Toshiba Corp 磁気共鳴イメージング装置、および、表示処理システム
JP2016101470A (ja) * 2014-11-27 2016-06-02 株式会社東芝 医用画像処理装置、医用画像処理方法および医用イメージング装置
WO2016125572A1 (ja) * 2015-02-06 2016-08-11 株式会社日立製作所 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

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012043311A1 (ja) * 2010-09-27 2012-04-05 株式会社 日立メディコ 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
JP5134068B2 (ja) * 2010-11-30 2013-01-30 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 磁気共鳴イメージング装置およびプログラム
DE102015206874B4 (de) * 2015-04-16 2017-04-13 Siemens Healthcare Gmbh Zeitaufgelöste MR-Abbildungen bei zyklischer Bewegung
JP7448418B2 (ja) 2020-05-29 2024-03-12 富士フイルムヘルスケア株式会社 磁気共鳴イメージング装置、及び、磁気共鳴イメージング方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010031037A1 (en) * 2000-02-10 2001-10-18 Prince Jerry L. Method for harmonic phase magnetic resonance imaging
JP2005525184A (ja) * 2002-05-13 2005-08-25 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ 前情報により向上される動的な磁気共鳴イメージング

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EP1171031B1 (en) * 1999-04-22 2012-02-15 Johns Hopkins University Cardiac motion tracking using cine harmonic phase (harp) magnetic resonance imaging
US6704594B1 (en) * 2000-11-06 2004-03-09 Topspin Medical (Israel) Limited Magnetic resonance imaging device
WO2006077715A1 (ja) * 2005-01-20 2006-07-27 Hitachi Medical Corporation 磁気共鳴イメージング装置
JP4864969B2 (ja) * 2006-06-16 2012-02-01 株式会社日立メディコ 磁気共鳴イメージング装置
JP5063279B2 (ja) * 2007-09-27 2012-10-31 株式会社日立製作所 磁気共鳴装置
US7755356B1 (en) * 2007-10-16 2010-07-13 Fonar Corporation Driven equilibrium and fast-spin echo scanning
DE102008021736B3 (de) * 2008-04-30 2009-12-10 Bruker Biospin Mri Gmbh Verfahren zur Bestimmung der räumlichen Verteilung von Magnetresonanzsignalen beim Einsatz von lokalen ortskodierenden Magnetfeldern
DE102010027312B4 (de) * 2010-07-16 2017-10-12 Siemens Healthcare Gmbh Verfahren zur Erstellung von MR-Bildern sowie entsprechend ausgestaltete Magnetresonanzanlage

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010031037A1 (en) * 2000-02-10 2001-10-18 Prince Jerry L. Method for harmonic phase magnetic resonance imaging
JP2005525184A (ja) * 2002-05-13 2005-08-25 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ 前情報により向上される動的な磁気共鳴イメージング

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
DERBYSHIRE J.A. ET AL.: "Cardiac Motion Encoding using HARP and DENSE: Tagging or Phase Contrast?", PROC. INTL. SOC. MAG. RESON. MED, vol. 9, April 2001 (2001-04-01), pages 1875 *
LIU W.ET AL.: "Fast Imaging of Cardiac Strain Using Partial k-Space HARP in Mice, Proc.", INTL. SOC. MAG. RESON. MED., vol. 12, May 2004 (2004-05-01), pages 1790 *
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014054565A (ja) * 2009-09-30 2014-03-27 Toshiba Corp 磁気共鳴イメージング装置、および、表示処理システム
JP2016101470A (ja) * 2014-11-27 2016-06-02 株式会社東芝 医用画像処理装置、医用画像処理方法および医用イメージング装置
WO2016125572A1 (ja) * 2015-02-06 2016-08-11 株式会社日立製作所 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

Also Published As

Publication number Publication date
JP5237957B2 (ja) 2013-07-17
JPWO2009051123A1 (ja) 2011-03-03
US8384382B2 (en) 2013-02-26
US20100290682A1 (en) 2010-11-18

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