JP4693209B2 - 磁気共鳴イメージング・システムのための高速スピン・エコーの位相補正法 - Google Patents

磁気共鳴イメージング・システムのための高速スピン・エコーの位相補正法 Download PDF

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JP4693209B2
JP4693209B2 JP2000163930A JP2000163930A JP4693209B2 JP 4693209 B2 JP4693209 B2 JP 4693209B2 JP 2000163930 A JP2000163930 A JP 2000163930A JP 2000163930 A JP2000163930 A JP 2000163930A JP 4693209 B2 JP4693209 B2 JP 4693209B2
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pulse
gradient
fse
pulse sequence
phase
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JP2001025463A (ja
JP2001025463A5 (enExample
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ジンフェイ・マー
イクシアーホン・ゾウ
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General Electric Co
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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
    • G01R33/565—Correction of image distortions, e.g. due to magnetic field inhomogeneities
    • G01R33/56554—Correction of image distortions, e.g. due to magnetic field inhomogeneities caused by acquiring plural, differently encoded echo signals after one RF excitation, e.g. correction for readout gradients of alternating polarity in 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

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  • 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)
JP2000163930A 1999-06-03 2000-06-01 磁気共鳴イメージング・システムのための高速スピン・エコーの位相補正法 Expired - Fee Related JP4693209B2 (ja)

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Application Number Priority Date Filing Date Title
US09/325081 1999-06-03
US09/325,081 US6369568B1 (en) 1999-06-03 1999-06-03 Fast spin echo phase correction for MRI system

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JP2001025463A5 JP2001025463A5 (enExample) 2007-07-12
JP4693209B2 true JP4693209B2 (ja) 2011-06-01

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US (1) US6369568B1 (enExample)
EP (1) EP1058123A1 (enExample)
JP (1) JP4693209B2 (enExample)

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JP4249215B2 (ja) * 2006-10-06 2009-04-02 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
JP5570713B2 (ja) 2007-09-27 2014-08-13 株式会社東芝 磁気共鳴イメージング装置
JP2009254583A (ja) * 2008-04-16 2009-11-05 Toshiba Corp 磁気共鳴イメージング装置及びその制御方法
JP5422194B2 (ja) * 2008-12-18 2014-02-19 株式会社東芝 磁気共鳴イメージング装置
US8653816B2 (en) * 2009-11-04 2014-02-18 International Business Machines Corporation Physical motion information capturing of a subject during magnetic resonce imaging automatically motion corrected by the magnetic resonance system
JP5686660B2 (ja) * 2010-05-27 2015-03-18 株式会社東芝 磁気共鳴イメージング装置及び方法
JP5611882B2 (ja) * 2010-05-31 2014-10-22 株式会社東芝 磁気共鳴イメージング装置
JP5925529B2 (ja) * 2011-03-31 2016-05-25 株式会社東芝 磁気共鳴イメージング装置
JP6194033B2 (ja) * 2011-03-31 2017-09-06 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
JP6084392B2 (ja) 2011-09-22 2017-02-22 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
DE102011083395B4 (de) * 2011-09-26 2013-06-13 Siemens Aktiengesellschaft Korrektur von Verzerrungen in MR-Bildern aufgrund von Inhomogenitäten des Grundmagnetfeldes
JP6139119B2 (ja) 2012-01-13 2017-05-31 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
JP6095669B2 (ja) * 2012-08-22 2017-03-15 株式会社日立製作所 磁気共鳴イメージング装置及び方法
WO2014164963A1 (en) * 2013-03-12 2014-10-09 Levin Pavel Method and apparatus for magnetic resonance imaging
US10274569B2 (en) * 2013-03-29 2019-04-30 Koninklijke Philips N.V. Magnetic resonance imaging system with ghost artifact reduction and method operation thereof
DE102014206929B4 (de) * 2014-04-10 2015-10-29 Siemens Aktiengesellschaft Unterdrückung unerwünschter Kohärenzpfade in der MR-Bildgebung
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
JP2018520730A (ja) * 2015-05-29 2018-08-02 メイヨ フォンデーシヨン フォー メディカル エジュケーション アンド リサーチ 非対称勾配を用いた磁気共鳴イメージングにおける随伴磁界補正のためのシステム及び方法
JP6591208B2 (ja) * 2015-06-09 2019-10-16 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
EP3324844A4 (en) 2015-07-23 2018-08-22 Shanghai United Imaging Healthcare Co., Ltd. System and method for magnetic resonance imaging
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US11085988B2 (en) 2019-03-20 2021-08-10 The Board Of Trustees Of The Leland Stanford Junior University Method for estimating systematic imperfections in medical imaging systems with deep learning
CN115685032B (zh) * 2022-11-02 2023-06-23 佛山瑞加图医疗科技有限公司 一种幅条k空间下的快速自旋回波的校正方法及系统
CN119165423B (zh) * 2024-09-06 2025-10-24 杭州微影医疗科技有限公司 一种平衡稳态自由进动序列的回波校准方法
CN119375799B (zh) * 2024-10-25 2025-04-15 安徽峻德医疗科技有限公司 一种超低场磁共振成像方法、系统、电子设备及产品

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US6369568B1 (en) 2002-04-09
EP1058123A1 (en) 2000-12-06
JP2001025463A (ja) 2001-01-30

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