CN101609132B - 确定控制高频发送线圈的脉冲序列的方法和磁共振设备 - Google Patents

确定控制高频发送线圈的脉冲序列的方法和磁共振设备 Download PDF

Info

Publication number
CN101609132B
CN101609132B CN200910146894.4A CN200910146894A CN101609132B CN 101609132 B CN101609132 B CN 101609132B CN 200910146894 A CN200910146894 A CN 200910146894A CN 101609132 B CN101609132 B CN 101609132B
Authority
CN
China
Prior art keywords
control
equation
equations
control device
determined
Prior art date
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.)
Expired - Fee Related
Application number
CN200910146894.4A
Other languages
English (en)
Chinese (zh)
Other versions
CN101609132A (zh
Inventor
迪克·迪尔
勒内·冈布雷赫特
于尔根·尼斯特勒
沃尔夫冈·伦兹
马库斯·维斯特
塞巴斯蒂安·沃尔夫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens Healthineers AG
Original Assignee
Siemens Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens Corp filed Critical Siemens Corp
Publication of CN101609132A publication Critical patent/CN101609132A/zh
Application granted granted Critical
Publication of CN101609132B publication Critical patent/CN101609132B/zh
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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

Landscapes

  • 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)
CN200910146894.4A 2008-06-19 2009-06-19 确定控制高频发送线圈的脉冲序列的方法和磁共振设备 Expired - Fee Related CN101609132B (zh)

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

Publications (2)

Publication Number Publication Date
CN101609132A CN101609132A (zh) 2009-12-23
CN101609132B true CN101609132B (zh) 2013-08-21

Family

ID=41334896

Family Applications (1)

Application Number Title Priority Date Filing Date
CN200910146894.4A Expired - Fee Related CN101609132B (zh) 2008-06-19 2009-06-19 确定控制高频发送线圈的脉冲序列的方法和磁共振设备

Country Status (4)

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

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1433737A (zh) * 2002-01-23 2003-08-06 Ge医疗系统环球技术有限公司 磁共振成像装置
US6989673B2 (en) * 2003-11-26 2006-01-24 General Electric Company Method and apparatus to reduce RF power deposition during MR data acquisition
CN1851494A (zh) * 2005-04-22 2006-10-25 西门子公司 改进发送侧加速的体积选择磁共振成像的方法和设备
WO2007092740A3 (en) * 2006-02-07 2008-01-17 Univ California Method and system for the amplification of nuclear magnetic resonance imaging
US7336145B1 (en) * 2006-11-15 2008-02-26 Siemens Aktiengesellschaft Method for designing RF excitation pulses in magnetic resonance tomography
DE102006058162B3 (de) * 2006-12-09 2008-06-12 Bruker Biospin Mri Gmbh Verfahren zur Gewinnung von Amplituden- und Phasenverläufen von HF-Pulsen für die räumlich-selektive Anregung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4709212A (en) * 1986-01-03 1987-11-24 General Electric Company Method of enhancing image signal-to-noise ratio by combining NMR images of differing pulse sequence timing
EP1004034A1 (en) * 1997-08-13 2000-05-31 Btg International Limited Apparatus for and method of determining values of relaxation parameters
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
US7786729B2 (en) * 2006-10-31 2010-08-31 Regents Of The University Of Minnesota Method for magnetic resonance imaging

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1433737A (zh) * 2002-01-23 2003-08-06 Ge医疗系统环球技术有限公司 磁共振成像装置
US6989673B2 (en) * 2003-11-26 2006-01-24 General Electric Company Method and apparatus to reduce RF power deposition during MR data acquisition
CN1851494A (zh) * 2005-04-22 2006-10-25 西门子公司 改进发送侧加速的体积选择磁共振成像的方法和设备
WO2007092740A3 (en) * 2006-02-07 2008-01-17 Univ California Method and system for the amplification of nuclear magnetic resonance imaging
US7336145B1 (en) * 2006-11-15 2008-02-26 Siemens Aktiengesellschaft Method for designing RF excitation pulses in magnetic resonance tomography
DE102006058162B3 (de) * 2006-12-09 2008-06-12 Bruker Biospin Mri Gmbh Verfahren zur Gewinnung von Amplituden- und Phasenverläufen von HF-Pulsen für die räumlich-selektive Anregung

Also Published As

Publication number Publication date
JP5641713B2 (ja) 2014-12-17
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
JP2010000358A (ja) 2010-01-07

Similar Documents

Publication Publication Date Title
CN101609132B (zh) 确定控制高频发送线圈的脉冲序列的方法和磁共振设备
CN102007423B (zh) 磁共振系统和方法
EP1991887B1 (en) High field magnetic resonance
CN102736045B (zh) 具有局部sar 约束的并行发射射频脉冲设计
CN100520435C (zh) 在磁共振设备的检查空间内产生均匀高频磁场的方法
Childs et al. Impact of number of channels on RF shimming at 3T
JP5184049B2 (ja) 磁気共鳴検査装置及び高周波パルス波形算出方法
Zelinski et al. Specific absorption rate studies of the parallel transmission of inner‐volume excitations at 7T
Sbrizzi et al. Fast design of local N‐gram‐specific absorption rate–optimized radiofrequency pulses for parallel transmit systems
US8779769B2 (en) Method and system for determining a magnetic resonance system activation sequence
US8049497B2 (en) MRI RF encoding using multiple transmit coils
US8482282B2 (en) Magnetic resonance method and apparatus to determine k-space positions for modeling radio-frequency pulses
CN103371825B (zh) 磁共振系统的控制
US20160223632A1 (en) Magnetic resonance imaging apparatus and magnetic resonance spectroscopic method using the same
US9606208B2 (en) Magnetic resonance system, and device and method for control thereof
US10718836B2 (en) Method and device for compensating for magnetic noise fields in spatial volumes, and nuclear magnetic resonance imaging apparatus
JP2013503677A (ja) 湾曲スポークのｋ空間軌道に沿ったＲＦシミングＭＲＩスライス励起
EP2296000B1 (en) Parallel excitation of nuclear spins with local SAR control
US9594137B2 (en) Controlling magnetic resonance systems
CN104820198B (zh) Hf脉冲调节方法和hf脉冲调节装置
US8891846B2 (en) Correction of changing local transmit phases during parallel transmission
EP4170372A1 (en) Magnetic resonance imaging with machine-learning based shim settings
US20130257427A1 (en) Determining a Magnetic Resonance System Control Sequence
JP4969933B2 (ja) 磁気共鳴イメージング装置
Darji Efficiency of parallel transmission methods at 7T magnetic resonance

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20220111

Address after: Erlangen

Patentee after: Siemens Healthineers AG

Address before: Munich, Germany

Patentee before: SIEMENS AG

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130821