WO2008136274A1 - 磁気共鳴イメージング装置及び方法 - Google Patents

磁気共鳴イメージング装置及び方法 Download PDF

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Publication number
WO2008136274A1
WO2008136274A1 PCT/JP2008/057502 JP2008057502W WO2008136274A1 WO 2008136274 A1 WO2008136274 A1 WO 2008136274A1 JP 2008057502 W JP2008057502 W JP 2008057502W WO 2008136274 A1 WO2008136274 A1 WO 2008136274A1
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Prior art keywords
sequence
data
imaging system
magnetic resonance
dimensional area
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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.)
Ceased
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PCT/JP2008/057502
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English (en)
French (fr)
Inventor
Naoya Kitamoto
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Hitachi Healthcare Manufacturing Ltd
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Hitachi Medical Corp
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Publication date
Application filed by Hitachi Medical Corp filed Critical Hitachi Medical Corp
Priority to JP2009512921A priority Critical patent/JPWO2008136274A1/ja
Priority to US12/593,652 priority patent/US8148980B2/en
Publication of WO2008136274A1 publication Critical patent/WO2008136274A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • 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]
    • 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
    • G01R33/565—Correction of image distortions, e.g. due to magnetic field inhomogeneities
    • 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
    • G01R33/5602—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution by filtering or weighting based on different relaxation times within the sample, e.g. T1 weighting using an inversion pulse
    • 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
    • G01R33/5607—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution by reducing the NMR signal of a particular spin species, e.g. of a chemical species for fat suppression, or of a moving spin species for black-blood 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
    • G01R33/565—Correction of image distortions, e.g. due to magnetic field inhomogeneities
    • G01R33/56563—Correction of image distortions, e.g. due to magnetic field inhomogeneities caused by a distortion of the main magnetic field B0, e.g. temporal variation of the magnitude or spatial inhomogeneity of B0
    • 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
    • G01R33/565—Correction of image distortions, e.g. due to magnetic field inhomogeneities
    • G01R33/56572—Correction of image distortions, e.g. due to magnetic field inhomogeneities caused by a distortion of a gradient magnetic field, e.g. non-linearity of a gradient magnetic field
    • 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
    • G01R33/565—Correction of image distortions, e.g. due to magnetic field inhomogeneities
    • G01R33/5659—Correction of image distortions, e.g. due to magnetic field inhomogeneities caused by a distortion of the RF magnetic field, e.g. spatial inhomogeneities of the RF magnetic field

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (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)
  • Magnetic Resonance Imaging Apparatus (AREA)

Abstract

　前記制御部は、前記パルスシーケンスとして、k空間の所定の二次元領域のデータを取得する第1シーケンスと、前記被検体に反転回復パルスを照射して、画像再構成に必要なデータを取得する第2シーケンスとを実行させ、第1シーケンスにおいて取得した前記二次元領域のデータを用いて、前記第2シーケンスで取得したデータの位相を補正し、 　前記信号処理部は、補正後のデータを用いて、実数成分画像を再構成することを特徴とする磁気共鳴イメージング装置において、 前記制御部は、前記第1のシーケンスを実行する際に、位相エンコード量を変えながら前記k空間の所定の二次元領域のデータを取得する。
PCT/JP2008/057502 2007-04-27 2008-04-17 磁気共鳴イメージング装置及び方法 Ceased WO2008136274A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2009512921A JPWO2008136274A1 (ja) 2007-04-27 2008-04-17 磁気共鳴イメージング装置及び方法
US12/593,652 US8148980B2 (en) 2007-04-27 2008-04-17 Magnetic resonance imaging system and method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-119247 2007-04-27
JP2007119247 2007-04-27

Publications (1)

Publication Number Publication Date
WO2008136274A1 true WO2008136274A1 (ja) 2008-11-13

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PCT/JP2008/057502 Ceased WO2008136274A1 (ja) 2007-04-27 2008-04-17 磁気共鳴イメージング装置及び方法

Country Status (3)

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US (1) US8148980B2 (ja)
JP (1) JPWO2008136274A1 (ja)
WO (1) WO2008136274A1 (ja)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012065736A (ja) * 2010-09-22 2012-04-05 Hitachi Medical Corp 磁気共鳴イメージング装置及び実数成分画像取得方法
JP2015013061A (ja) * 2013-07-08 2015-01-22 株式会社日立メディコ 磁気共鳴イメージング装置及び実数成分画像取得方法
JP2017140532A (ja) * 2009-09-18 2017-08-17 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
JP2023548494A (ja) * 2020-11-10 2023-11-17 コーニンクレッカ フィリップス エヌ ヴェ スパイラル取得を用いたｍｒイメージング

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012151551A2 (en) * 2011-05-04 2012-11-08 Oregon Health And Science University Method and apparatus for using magnetic resonance imaging for cartilage assessment and monitoring
KR20130049461A (ko) * 2011-11-04 2013-05-14 삼성전자주식회사 자기 공명 영상 촬상 방법 및 장치
CN105640554B (zh) * 2014-11-12 2017-11-28 上海联影医疗科技有限公司 磁共振成像方法
CN115372873B (zh) * 2021-05-18 2025-07-25 哈尔滨医科大学 一种应用于杂核成像的k空间轨迹校正系统及方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002085376A (ja) * 2000-09-20 2002-03-26 Hitachi Medical Corp 核磁気共鳴イメージング装置および方法
JP2004073538A (ja) * 2002-08-20 2004-03-11 Ge Medical Systems Global Technology Co Llc 磁気共鳴撮影装置
JP3576069B2 (ja) * 2000-04-27 2004-10-13 株式会社東芝 Ｍｒｉ装置
JP2006081704A (ja) * 2004-09-16 2006-03-30 Hitachi Medical Corp 磁気共鳴イメージング装置

Family Cites Families (5)

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Publication number Priority date Publication date Assignee Title
JPH01250236A (ja) * 1988-03-31 1989-10-05 Toshiba Corp 磁気共鳴映像装置
US7797031B1 (en) * 2002-05-17 2010-09-14 General Electric Company Method and apparatus for breath-held MR data acquisition using interleaved acquisition
AU2003273242A1 (en) * 2002-08-27 2004-03-19 Xavier Golay (Nmi) Microvascular blood volume magnetic resonance imaging
US7821265B2 (en) * 2008-03-04 2010-10-26 General Electric Co. Method and apparatus for acquiring MRI data for pulse sequences with multiple phase encode directions and periodic signal modulation
US8143891B2 (en) * 2008-08-29 2012-03-27 Siemens Aktiengesellschaft System for image acquisition with fast magnetic resonance gradient echo sequences

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3576069B2 (ja) * 2000-04-27 2004-10-13 株式会社東芝 Ｍｒｉ装置
JP2002085376A (ja) * 2000-09-20 2002-03-26 Hitachi Medical Corp 核磁気共鳴イメージング装置および方法
JP2004073538A (ja) * 2002-08-20 2004-03-11 Ge Medical Systems Global Technology Co Llc 磁気共鳴撮影装置
JP2006081704A (ja) * 2004-09-16 2006-03-30 Hitachi Medical Corp 磁気共鳴イメージング装置

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017140532A (ja) * 2009-09-18 2017-08-17 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
US10058257B2 (en) 2009-09-18 2018-08-28 Toshiba Medical Systems Corporation Magnetic resonance imaging apparatus and magnetic resonance imaging method
JP2012065736A (ja) * 2010-09-22 2012-04-05 Hitachi Medical Corp 磁気共鳴イメージング装置及び実数成分画像取得方法
JP2015013061A (ja) * 2013-07-08 2015-01-22 株式会社日立メディコ 磁気共鳴イメージング装置及び実数成分画像取得方法
JP2023548494A (ja) * 2020-11-10 2023-11-17 コーニンクレッカ フィリップス エヌ ヴェ スパイラル取得を用いたｍｒイメージング
JP7803341B2 (ja) 2020-11-10 2026-01-21 コーニンクレッカ フィリップス エヌ ヴェ スパイラル取得を用いたｍｒイメージング

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JPWO2008136274A1 (ja) 2010-07-29
US20100134107A1 (en) 2010-06-03
US8148980B2 (en) 2012-04-03

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