JP5641713B2 - 高周波送信コイルの駆動制御のためのパルスシーケンスを求めるための方法及び所属の磁気共鳴装置 - Google Patents

高周波送信コイルの駆動制御のためのパルスシーケンスを求めるための方法及び所属の磁気共鳴装置 Download PDF

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JP5641713B2
JP5641713B2 JP2009146568A JP2009146568A JP5641713B2 JP 5641713 B2 JP5641713 B2 JP 5641713B2 JP 2009146568 A JP2009146568 A JP 2009146568A JP 2009146568 A JP2009146568 A JP 2009146568A JP 5641713 B2 JP5641713 B2 JP 5641713B2
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JP2010000358A5 (https=
JP2010000358A (ja
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ディール ディルク
ディール ディルク
グンブレヒト レネ
グンブレヒト レネ
ニストラー ユルゲン
ニストラー ユルゲン
レンツ ヴォルフガング
レンツ ヴォルフガング
フェスター マルクス
フェスター マルクス
ヴォルフ ゼバスティアン
ヴォルフ ゼバスティアン
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Siemens AG
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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
    • G01R33/34—Constructional details, e.g. resonators, specially adapted to MR
    • G01R33/341—Constructional details, e.g. resonators, specially adapted to MR comprising surface coils
    • G01R33/3415—Constructional details, e.g. resonators, specially adapted to MR comprising surface coils comprising arrays of sub-coils, i.e. phased-array coils with flexible receiver channels
    • 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
    • G01R33/288—Provisions within MR facilities for enhancing safety during MR, e.g. reduction of the specific absorption rate [SAR], detection of ferromagnetic objects in the scanner room
    • 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
    • G01R33/5612—Parallel RF transmission, i.e. RF pulse transmission using a plurality of independent transmission channels
    • 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
    • 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
    • G01R33/483—NMR imaging systems with selection of signals or spectra from particular regions of the volume, e.g. in vivo spectroscopy
    • G01R33/4833—NMR imaging systems with selection of signals or spectra from particular regions of the volume, e.g. in vivo spectroscopy using spatially selective excitation of the volume of interest, e.g. selecting non-orthogonal or inclined slices

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  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General 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)
  • Magnetic Resonance Imaging Apparatus (AREA)
JP2009146568A 2008-06-19 2009-06-19 高周波送信コイルの駆動制御のためのパルスシーケンスを求めるための方法及び所属の磁気共鳴装置 Expired - Fee Related JP5641713B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008029175.7 2008-06-19
DE102008029175A DE102008029175B4 (de) 2008-06-19 2008-06-19 Verfahren zur Ermittlung einer Pulssequenz zur Ansteuerung einer Hochfrequenz-Sendespule

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JP2010000358A JP2010000358A (ja) 2010-01-07
JP2010000358A5 JP2010000358A5 (https=) 2012-06-21
JP5641713B2 true JP5641713B2 (ja) 2014-12-17

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US (1) US8120359B2 (https=)
JP (1) JP5641713B2 (https=)
CN (1) CN101609132B (https=)
DE (1) DE102008029175B4 (https=)

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US8120358B2 (en) * 2006-04-13 2012-02-21 The Regents Of The University Of California Magnetic resonance imaging with high spatial and temporal resolution
DE102008061455B4 (de) * 2008-12-10 2011-03-17 Siemens Aktiengesellschaft Verfahren und Vorrichtung zur Bestimmung einer vorbestimmten Signalamplitude bei MR-Messungen
DE102008063630B4 (de) * 2008-12-18 2011-04-14 Siemens Aktiengesellschaft Verfahren zur Kontrolle einer Hochfrequenzsendeeinrichtung, Hochfrequenzsendeeinrichtung, Hochfrequenz-Kontrolleinrichtung und Magnetresonanztomographiesystem
DE102009024077B4 (de) * 2009-06-05 2012-09-13 Siemens Aktiengesellschaft Verfahren und Vorrichtung zur SAR-Überwachung bei Transmit-Array-Sendesystemen
DE102009025476B4 (de) * 2009-06-18 2012-03-08 Siemens Aktiengesellschaft Verfahren zur Ermittlung von Parametern zur Ansteuerung der Gradientenspulen und Hochfrequenzspulen einer Magnetresonanzeinrichtung
DE102010013672B4 (de) * 2010-04-01 2020-10-22 Siemens Healthcare Gmbh Verfahren und Einrichtung zur Ermittlung einer Magnetresonanzsystem-Ansteuersequenz und Verfahren zum Betrieb eines Magnetresonanzsystems
DE102010015044A1 (de) * 2010-04-15 2011-10-20 Siemens Aktiengesellschaft Verfahren und Einrichtung zur Ermittlung einer Magnetresonanzsystem-Ansteuersequenz und Verfahren zum Betrieb eines Magnetresonanzsystems
DE102010015066B4 (de) * 2010-04-15 2014-12-11 Siemens Aktiengesellschaft Verfahren und Einrichtung zur Ermittlung einer Magnetresonanzsystem-Ansteuersequenz und Verfahren zum Betrieb eines Magnetresonanzsystems
DE102011004432A1 (de) 2011-02-20 2012-08-23 Forschungszentrum Jülich GmbH Magnetresonanzverfahren und Kernspintomograph zur Durchführung des Magnetresonanzverfahrens
DE102011005174A1 (de) * 2011-03-07 2012-09-13 Friedrich-Alexander-Universität Erlangen-Nürnberg Verfahren und Einrichtung zur Ermittlung einer Magnetresonanzsystem-Ansteuersequenz
DE102011006149B4 (de) 2011-03-25 2012-10-31 Siemens Aktiengesellschaft Ermittlung einer Magnetresonanzsystem-Ansteuersequenz unter Optimierung der Sendebandbreite
DE102011006151B4 (de) 2011-03-25 2014-04-30 Siemens Aktiengesellschaft Ermittlung einer hinsichtlich eines HF-Energieparameters optimierten HF-Pulslänge eines Magnetresonanzsystems
DE102011006573B4 (de) * 2011-03-31 2014-09-04 Siemens Aktiengesellschaft Verfahren zur Ermittlung einer optimalen Struktur eines Hochfrequenzschirms einer Hochfrequenzantenne einer Magnetresonanzanordnung
DE102011007823B4 (de) 2011-04-20 2012-11-15 Bruker Biospin Mri Gmbh Verfahren zur Erzeugung eines gewünschten zeitlichen Verlaufs des Magnetisierungszustandes in einem Untersuchungsobjekt im Rahmen eines Experimentes der magnetischen Resonanz
CN102288929B (zh) * 2011-05-11 2013-04-17 浙江大学 用于磁共振系统的激发脉冲序列生成器
DE102011081508B3 (de) 2011-08-24 2013-02-28 Siemens Aktiengesellschaft Flusssensitive, frequenzunabhängige Anregung von Magnetresonanzsignalen
DE102011087915B4 (de) * 2011-12-07 2015-04-09 Siemens Aktiengesellschaft Verfahren zur Überwachung der Patientenbelastung in einer Magnetresonanzeinrichtung
DE102012212402B3 (de) * 2012-03-20 2013-10-17 Siemens Aktiengesellschaft Ermittlung einer MR-Sequenz unter Berücksichtigung der Energieverteilungsfunktion im k-Raum
DE102012205297B4 (de) * 2012-03-30 2015-02-12 Siemens Aktiengesellschaft Ermittlung einer Magnetresonanzsystem-Ansteuersequenz und Verfahren zum Betrieb eines Magnetresonanzsystems
DE102012205292B4 (de) * 2012-03-30 2013-12-12 Siemens Aktiengesellschaft Ansteuerung eines Magnetresonanzsystems
JP6101352B2 (ja) * 2013-08-27 2017-03-22 株式会社日立製作所 磁気共鳴撮像装置および撮像パラメータ決定方法
DE102013220933B3 (de) * 2013-10-16 2015-01-22 Bruker Biospin Ag Shim-Verfahren mit Festlegung der Zielfeldverteilung durch Optimierung in einem Parameterraum reduzierter Dimension
JP6410633B2 (ja) * 2015-02-20 2018-10-24 株式会社日立製作所 磁気共鳴イメージング装置およびｓａｒ算出方法
CN107874757B (zh) * 2016-09-30 2023-06-09 通用电气公司 磁共振射频子系统及用于其的线圈去耦合装置及方法
CN106569158B (zh) * 2016-10-24 2019-02-05 浙江大学 一种降低特殊吸收率的压缩型螺旋梯度射频脉冲设计方法
JP6965073B2 (ja) * 2017-09-19 2021-11-10 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
EP3644085A1 (de) * 2018-10-25 2020-04-29 Siemens Healthcare GmbH Auswahl von messspulen bei der magnetresonanz-bildgebung
CN111308405B (zh) * 2018-12-12 2022-08-09 西门子医疗有限公司 用于监控局部线圈的方法和设备

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EP2899561B1 (en) * 2006-02-17 2021-04-28 Regents of the University of Minnesota MRI method for generating a map of the transmit RF field for each coil of a RF coil array
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US20090322329A1 (en) 2009-12-31
CN101609132A (zh) 2009-12-23
US8120359B2 (en) 2012-02-21
DE102008029175B4 (de) 2010-09-30
DE102008029175A1 (de) 2009-12-24
CN101609132B (zh) 2013-08-21
JP2010000358A (ja) 2010-01-07

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