JP4926976B2 - 磁気共鳴撮像システム及び方法 - Google Patents

磁気共鳴撮像システム及び方法 Download PDF

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Publication number
JP4926976B2
JP4926976B2 JP2007547755A JP2007547755A JP4926976B2 JP 4926976 B2 JP4926976 B2 JP 4926976B2 JP 2007547755 A JP2007547755 A JP 2007547755A JP 2007547755 A JP2007547755 A JP 2007547755A JP 4926976 B2 JP4926976 B2 JP 4926976B2
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Japan
Prior art keywords
coil
magnetic resonance
resonance imaging
coils
weighting factor
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Japanese (ja)
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JP2008525088A (ja
JP2008525088A5 (enExample
Inventor
ウルリヒ カチエル
クリスティアン フィンデクレー
ペテル フェルニッケル
クリストフ ロイッスレル
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Koninklijke Philips NV
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Koninklijke Philips NV
Koninklijke Philips Electronics NV
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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
    • G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
    • G01R33/36—Electrical details, e.g. matching or coupling of the coil to the receiver
    • G01R33/3607—RF waveform generators, e.g. frequency generators, amplitude-, frequency- or phase modulators or shifters, pulse programmers, digital to analog converters for the RF signal, means for filtering or attenuating of the RF signal
    • 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

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  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
JP2007547755A 2004-12-22 2005-12-19 磁気共鳴撮像システム及び方法 Expired - Fee Related JP4926976B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP04106844.6 2004-12-22
EP04106844 2004-12-22
PCT/IB2005/054312 WO2006067727A2 (en) 2004-12-22 2005-12-19 Magnetic resonance imaging system and method

Publications (3)

Publication Number Publication Date
JP2008525088A JP2008525088A (ja) 2008-07-17
JP2008525088A5 JP2008525088A5 (enExample) 2012-02-02
JP4926976B2 true JP4926976B2 (ja) 2012-05-09

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ID=36578683

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JP2007547755A Expired - Fee Related JP4926976B2 (ja) 2004-12-22 2005-12-19 磁気共鳴撮像システム及び方法

Country Status (7)

Country Link
US (1) US7701211B2 (enExample)
EP (1) EP1831712B8 (enExample)
JP (1) JP4926976B2 (enExample)
CN (1) CN101088022B (enExample)
AT (1) ATE428120T1 (enExample)
DE (1) DE602005013821D1 (enExample)
WO (1) WO2006067727A2 (enExample)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8049497B2 (en) 2006-10-31 2011-11-01 Koninklijke Philips Electronics N.V. MRI RF encoding using multiple transmit coils
DE102007023251B4 (de) * 2007-05-18 2017-11-23 Siemens Healthcare Gmbh Verfahren zur Steuerung eines Magnetresonanzsystems
US7508214B2 (en) 2007-05-21 2009-03-24 Medrad, Inc. Transmit-mode phased array coils for reduced SAR and artifact issues
US8698495B2 (en) * 2008-03-27 2014-04-15 Koninklijke Philips N.V. Flip angle imaging with improved B1 mapping for multi-RF transmit systems
US8686726B2 (en) * 2008-09-17 2014-04-01 Koninklijke Philips N.V. RF shimming with RF power regularization using a multi-channel RF transmit system for MRI
DE102009012109B4 (de) * 2009-03-06 2011-05-12 Siemens Aktiengesellschaft Digitales Verfahren zur Kanalreduktion in MR Empfangs-Systemen und entsprechende Vorrichtung
CN101615214B (zh) * 2009-07-23 2012-05-16 清华大学 一种对磁共振成像rf线圈进行性能分析的方法
EP2478382A1 (en) 2009-09-17 2012-07-25 Koninklijke Philips Electronics N.V. Image intensity correction for magnetic resonance imaging
DE102011083395B4 (de) * 2011-09-26 2013-06-13 Siemens Aktiengesellschaft Korrektur von Verzerrungen in MR-Bildern aufgrund von Inhomogenitäten des Grundmagnetfeldes
US9411032B2 (en) 2012-07-31 2016-08-09 General Electric Company Sensitivity distribution generating apparatus, magnetic resonance system, sensitivity distribution generating method, and program
JP6884101B2 (ja) 2015-01-21 2021-06-09 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． 多チャンネルｒｆコイルアセンブリの自動化されたインピーダンス調節
JP6976711B2 (ja) 2017-04-28 2021-12-08 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パルス設計方法
US10705166B2 (en) 2017-05-18 2020-07-07 Synaptive Medical (Barbados) Inc. Transmit coil frequency response correction for magnetic resonance imaging
JP7000119B2 (ja) 2017-10-31 2022-02-04 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パルス設計方法
CN112401868A (zh) * 2019-08-21 2021-02-26 西门子(深圳)磁共振有限公司 呼吸检测装置、方法及磁共振成像系统

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005152657A (ja) * 2003-11-26 2005-06-16 General Electric Co <Ge> 送信コイルアレイを用いて望ましい励起プロフィールに一致するｒｆ励起を発生する方法及び装置
JP2006508759A (ja) * 2002-12-06 2006-03-16 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 複数の送信コイルを有する磁気共鳴映像システム

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10136481A1 (de) 2001-07-27 2003-02-20 Leica Microsystems Anordnung zum Mikromanipulieren von biologischen Objekten
US5759152A (en) * 1996-10-02 1998-06-02 Mayo Foundation For Medical Education And Research Phase-aligned NMR surface coil image reconstruction
DE10124465A1 (de) * 2001-05-19 2002-11-21 Philips Corp Intellectual Pty Sende- und Empfangsspule für MR-Gerät
WO2004061469A1 (en) * 2003-01-07 2004-07-22 Philips Intellectual Property & Standards Gmbh High-frequency system for an mr apparatus with multiple transmit channels
US7259562B2 (en) * 2005-02-11 2007-08-21 Baylor College Of Medicine RF coil for a highly uniform B1 amplitude for high field MRI
US7439742B2 (en) * 2006-11-28 2008-10-21 Siemens Aktiengesellschaft Magnetic resonance RF transmission array
US7508214B2 (en) * 2007-05-21 2009-03-24 Medrad, Inc. Transmit-mode phased array coils for reduced SAR and artifact issues

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006508759A (ja) * 2002-12-06 2006-03-16 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 複数の送信コイルを有する磁気共鳴映像システム
JP2005152657A (ja) * 2003-11-26 2005-06-16 General Electric Co <Ge> 送信コイルアレイを用いて望ましい励起プロフィールに一致するｒｆ励起を発生する方法及び装置

Also Published As

Publication number Publication date
JP2008525088A (ja) 2008-07-17
ATE428120T1 (de) 2009-04-15
EP1831712B1 (en) 2009-04-08
US7701211B2 (en) 2010-04-20
WO2006067727A3 (en) 2006-10-05
DE602005013821D1 (de) 2009-05-20
WO2006067727A2 (en) 2006-06-29
EP1831712A2 (en) 2007-09-12
CN101088022B (zh) 2011-02-16
CN101088022A (zh) 2007-12-12
US20090251144A1 (en) 2009-10-08
EP1831712B8 (en) 2009-06-17

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