JP4122452B2 - 磁気共鳴撮像装置 - Google Patents

磁気共鳴撮像装置 Download PDF

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Publication number
JP4122452B2
JP4122452B2 JP2001317262A JP2001317262A JP4122452B2 JP 4122452 B2 JP4122452 B2 JP 4122452B2 JP 2001317262 A JP2001317262 A JP 2001317262A JP 2001317262 A JP2001317262 A JP 2001317262A JP 4122452 B2 JP4122452 B2 JP 4122452B2
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Japan
Prior art keywords
magnetic field
measurement data
gradient magnetic
pulse
magnetic resonance
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Expired - Lifetime
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JP2001317262A
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English (en)
Japanese (ja)
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JP2003116815A (ja
JP2003116815A5 (cg-RX-API-DMAC7.html
Inventor
秀樹 熊井
博幸 竹内
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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 JP2001317262A priority Critical patent/JP4122452B2/ja
Priority to US10/492,640 priority patent/US7418286B2/en
Priority to CNB028204638A priority patent/CN100415161C/zh
Priority to PCT/JP2002/010662 priority patent/WO2003032830A1/ja
Publication of JP2003116815A publication Critical patent/JP2003116815A/ja
Publication of JP2003116815A5 publication Critical patent/JP2003116815A5/ja
Application granted granted Critical
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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
    • 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
    • G01R33/56518—Correction of image distortions, e.g. due to magnetic field inhomogeneities due to eddy currents, e.g. caused by switching of the 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
    • G01R33/56563—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

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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)
JP2001317262A 2001-10-15 2001-10-15 磁気共鳴撮像装置 Expired - Lifetime JP4122452B2 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2001317262A JP4122452B2 (ja) 2001-10-15 2001-10-15 磁気共鳴撮像装置
US10/492,640 US7418286B2 (en) 2001-10-15 2002-10-15 Magnetic resonance imaging apparatus and magnetic resonance imaging method
CNB028204638A CN100415161C (zh) 2001-10-15 2002-10-15 磁共振摄像装置以及磁共振摄像方法
PCT/JP2002/010662 WO2003032830A1 (en) 2001-10-15 2002-10-15 Magnetic resonance imaging apparatus and magnetic resonance imaging method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001317262A JP4122452B2 (ja) 2001-10-15 2001-10-15 磁気共鳴撮像装置

Publications (3)

Publication Number Publication Date
JP2003116815A JP2003116815A (ja) 2003-04-22
JP2003116815A5 JP2003116815A5 (cg-RX-API-DMAC7.html) 2005-06-30
JP4122452B2 true JP4122452B2 (ja) 2008-07-23

Family

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JP2001317262A Expired - Lifetime JP4122452B2 (ja) 2001-10-15 2001-10-15 磁気共鳴撮像装置

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US (1) US7418286B2 (cg-RX-API-DMAC7.html)
JP (1) JP4122452B2 (cg-RX-API-DMAC7.html)
CN (1) CN100415161C (cg-RX-API-DMAC7.html)
WO (1) WO2003032830A1 (cg-RX-API-DMAC7.html)

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JP4619674B2 (ja) * 2004-03-24 2011-01-26 株式会社東芝 磁気共鳴イメージング装置
JP4625677B2 (ja) * 2004-10-25 2011-02-02 株式会社東芝 磁気共鳴イメージング装置および画像補正評価方法
WO2006118110A1 (ja) * 2005-04-26 2006-11-09 Hitachi Medical Corporation 磁気共鳴イメージング装置および方法
CN100589756C (zh) * 2005-04-28 2010-02-17 株式会社日立医药 磁共振摄影装置
US7375519B2 (en) * 2006-04-20 2008-05-20 General Electric Company Method and apparatus of MR imaging with two dimensional phase and magnitude correction
JP5366484B2 (ja) * 2007-09-28 2013-12-11 株式会社東芝 磁気共鳴イメージング装置およびこの磁気共鳴イメージング装置における脂肪抑制効果の分析方法
US8008915B2 (en) * 2007-12-28 2011-08-30 Kabushiki Kaisha Toshiba Magnetic resonance imaging apparatus and magnetic resonance imaging method
US9341691B2 (en) * 2008-11-12 2016-05-17 Regents Of The University Of Minnesota Short TE 3D radial sampling sequence for MRI
JP5275007B2 (ja) * 2008-12-16 2013-08-28 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
US9414766B2 (en) * 2010-02-25 2016-08-16 The Medical College Of Wisconsin, Inc. Method for simultaneous multi-slice magnetic resonance imaging using single and multiple channel receiver coils
US9256977B2 (en) * 2012-02-01 2016-02-09 Siemens Medical Solutions Usa, Inc. System for reconstruction of virtual frequency selective inversion MR images
DE102013209295B4 (de) * 2013-05-21 2016-11-17 Siemens Healthcare Gmbh Korrektur von MR-Bilddatensätzen unter Nutzung einer Ähnlichkeit zeitlich aufeinanderfolgender Datensätze
DE102014211034A1 (de) * 2014-06-10 2015-12-17 Siemens Aktiengesellschaft Medizinisches Gerät zur Bildgebung und Verfahren für ein medizinisches Gerät zur Bildgebung
US9971008B2 (en) * 2014-09-30 2018-05-15 Toshiba Medical Systems Corporation MRI gradient trajectory mapping
CN106659421A (zh) * 2014-10-30 2017-05-10 株式会社日立制作所 磁共振成像装置以及磁共振成像方法
JP2016198392A (ja) * 2015-04-13 2016-12-01 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
JP7539255B2 (ja) * 2020-05-21 2024-08-23 富士フイルムヘルスケア株式会社 磁気共鳴撮像装置
JP7609622B2 (ja) * 2020-12-14 2025-01-07 富士フイルム株式会社 磁気共鳴イメージング装置およびその制御方法
JP7557741B2 (ja) * 2021-02-25 2024-09-30 富士フイルム株式会社 磁気共鳴イメージング装置、画像補正方法、および静磁場不均一補正方法
CN115113122B (zh) * 2021-03-18 2025-09-12 佳能医疗系统株式会社 图像处理装置以及图像处理方法
JP7722899B2 (ja) * 2021-10-22 2025-08-13 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及び磁気共鳴イメージングプログラム
EP4261557A1 (en) * 2022-04-15 2023-10-18 Koninklijke Philips N.V. Mr imaging using partial echo acquisition
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

Family Cites Families (13)

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Publication number Priority date Publication date Assignee Title
JPH0811112B2 (ja) * 1985-03-11 1996-02-07 株式会社日立製作所 核磁気共鳴を用いた検査装置
US4780675A (en) * 1987-08-14 1988-10-25 Picker International, Inc. Conjugate symmetry magnetic resonance imaging
EP0644437B1 (en) * 1993-09-16 1999-05-12 Koninklijke Philips Electronics N.V. Correction of read-gradient polarity in EPI and GRASE MRI
JP3544782B2 (ja) * 1996-04-16 2004-07-21 株式会社東芝 磁気共鳴診断装置
US5742163A (en) * 1996-04-26 1998-04-21 Picker International, Inc. Magnetic resonance scan calibration and reconstruction technique for multi-shot, multi-echo imaging
US6172502B1 (en) * 1996-07-08 2001-01-09 U.S. Philips Corporation Method of and device for imaging by means of magnetic resonance
US6249595B1 (en) * 1998-01-22 2001-06-19 General Electric Company Iterative reconstruction for EPI
JP4127889B2 (ja) * 1998-03-04 2008-07-30 株式会社日立メディコ 磁気共鳴イメージング装置
JP3519270B2 (ja) * 1998-04-08 2004-04-12 独立行政法人理化学研究所 磁気共鳴撮像装置および磁気共鳴撮像装置における信号処理方法
US6285187B1 (en) * 1999-04-28 2001-09-04 General Electric Company Method and apparatus for reducing artifacts in echo planar imaging
US6259250B1 (en) * 1999-04-28 2001-07-10 General Electric Company Method and apparatus for reducing artifacts in echo planar imaging
US6424914B1 (en) * 2000-12-26 2002-07-23 American Gnc Corporation Fully-coupled vehicle positioning method and system thereof
US6841998B1 (en) * 2001-04-06 2005-01-11 Mark Griswold Magnetic resonance imaging method and apparatus employing partial parallel acquisition, wherein each coil produces a complete k-space datasheet

Also Published As

Publication number Publication date
CN100415161C (zh) 2008-09-03
CN1571647A (zh) 2005-01-26
WO2003032830A1 (en) 2003-04-24
US7418286B2 (en) 2008-08-26
JP2003116815A (ja) 2003-04-22
US20040245986A1 (en) 2004-12-09

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