NL2001591A1 - Systeem en werkwijze voor amplitudereductie in HF-pulsontwerp. - Google Patents

Systeem en werkwijze voor amplitudereductie in HF-pulsontwerp.

Info

Publication number
NL2001591A1
NL2001591A1 NL2001591A NL2001591A NL2001591A1 NL 2001591 A1 NL2001591 A1 NL 2001591A1 NL 2001591 A NL2001591 A NL 2001591A NL 2001591 A NL2001591 A NL 2001591A NL 2001591 A1 NL2001591 A1 NL 2001591A1
Authority
NL
Netherlands
Prior art keywords
amplitude reduction
pulse design
pulse
design
amplitude
Prior art date
Application number
NL2001591A
Other languages
English (en)
Other versions
NL2001591C2 (nl
Inventor
Dan Xu
Kevin F King
Original Assignee
Gen Electric
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 Gen Electric filed Critical Gen Electric
Publication of NL2001591A1 publication Critical patent/NL2001591A1/nl
Application granted granted Critical
Publication of NL2001591C2 publication Critical patent/NL2001591C2/nl

Links

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
    • G01R33/44—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
    • G01R33/4836—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 using an RF pulse being spatially selective in more than one spatial dimension, e.g. a 2D pencil-beam excitation pulse
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves 
    • A61B5/055—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves  involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
    • 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
    • G01R33/4818—MR characterised by data acquisition along a specific k-space trajectory or by the temporal order of k-space coverage, e.g. centric or segmented coverage of k-space
    • G01R33/4824—MR characterised by data acquisition along a specific k-space trajectory or by the temporal order of k-space coverage, e.g. centric or segmented coverage of k-space using a non-Cartesian trajectory
    • 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)
  • High Energy & Nuclear Physics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Optics & Photonics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Biophysics (AREA)
  • Molecular Biology (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
NL2001591A 2007-05-18 2008-05-19 Systeem en werkwijze voor amplitudereductie in HF-pulsontwerp. NL2001591C2 (nl)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US75047807 2007-05-18
US11/750,478 US7737690B2 (en) 2007-05-18 2007-05-18 System and method for amplitude reduction in RF pulse design

Publications (2)

Publication Number Publication Date
NL2001591A1 true NL2001591A1 (nl) 2008-11-20
NL2001591C2 NL2001591C2 (nl) 2009-09-29

Family

ID=40026873

Family Applications (1)

Application Number Title Priority Date Filing Date
NL2001591A NL2001591C2 (nl) 2007-05-18 2008-05-19 Systeem en werkwijze voor amplitudereductie in HF-pulsontwerp.

Country Status (3)

Country Link
US (1) US7737690B2 (nl)
JP (1) JP2008284361A (nl)
NL (1) NL2001591C2 (nl)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104583793A (zh) * 2012-07-25 2015-04-29 皇家飞利浦有限公司 能在不同转换速率工作的mri梯度放大器

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7705594B2 (en) * 2007-03-30 2010-04-27 General Electric Company System and method for designing improved RF pulse profiles
DE102008004256B4 (de) * 2008-01-14 2010-01-07 Siemens Aktiengesellschaft SAR-optimierte Ansteuerung eines Spulenarrays
US8085046B2 (en) * 2008-08-28 2011-12-27 The General Hospital Corporation Coil array mode compression for parallel transmission magnetic resonance imaging
US8049499B2 (en) 2009-03-20 2011-11-01 Case Western Reserve University Controlling multi-channel transmitter effects on specific absorption rate
CN102428382B (zh) * 2009-04-02 2015-02-25 皇家飞利浦电子股份有限公司 通过k空间相关rf脉冲选择来降低并行发射中的sar
CN102109586B (zh) * 2009-12-23 2015-02-11 Ge医疗系统环球技术有限公司 磁共振梯度脉冲波设计方法及其装置
JP5780512B2 (ja) * 2010-06-07 2015-09-16 株式会社東芝 磁気共鳴イメージング装置
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
CN102283649B (zh) * 2011-05-11 2012-11-21 浙江大学 用于磁共振成像的三维空间选择性激励的序列设计方法
DE102012215255B3 (de) * 2012-08-28 2014-02-27 Siemens Aktiengesellschaft Ansteuerung eines Magnetresonanzsystems unter Berücksichtigung aktueller komponentenbedingter B1-Feld-Maximalwerte
WO2014080781A1 (ja) * 2012-11-20 2014-05-30 株式会社 日立メディコ 磁気共鳴イメージング装置、及び、ｓａｒの予測方法
CN103323805B (zh) * 2013-05-29 2015-04-29 杭州电子科技大学 基于小波域稀疏表示的speed快速磁共振成像方法
US9766314B2 (en) * 2014-04-21 2017-09-19 General Electric Company Systems and methods for design of magnetic resonance imaging slice-select pulses
DE102016203757B4 (de) 2016-03-08 2018-05-30 Siemens Healthcare Gmbh Abschnittsweises Optimieren von radialen MR-Pulssequenzen
WO2017173617A1 (en) * 2016-04-07 2017-10-12 Shanghai United Imaging Healthcare Co., Ltd. System and method for fast imaging in magnetic resonance imaging
JP6804228B2 (ja) * 2016-08-01 2020-12-23 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
US10753994B2 (en) * 2017-04-21 2020-08-25 University Of Virginia Patent Foundation Systems and methods for simultaneous multi-slice imaging
CN107638179B (zh) * 2017-08-28 2020-09-04 上海联影医疗科技有限公司 磁共振翻转角的计算方法、系统和计算机可读存储介质
JP7169795B2 (ja) * 2018-07-11 2022-11-11 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および高周波増幅回路

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5105152A (en) 1990-03-22 1992-04-14 The Board Of Trustees Of The Leland Stanford Junior University Magnetic resonance imaging and spectroscopy using a linear class of large tip-angle selective excitation pulses
US5313163A (en) 1992-08-12 1994-05-17 General Electric Company Sampling-ring saturation pulse for two-dimensional magnetic resonance selective excitation
US5402067A (en) * 1993-08-04 1995-03-28 Board Of Trustees Of The Leland Stanford Junior University Apparatus and method for rare echo imaging using k-space spiral coverage
US6313630B1 (en) * 1999-08-25 2001-11-06 Ge Medical Systems Global Technology Company Llc Modular gradient system for MRI system
DE10214736B4 (de) * 2002-04-03 2005-03-31 Siemens Ag Verfahren zur Optimierung der k-Raum-Trajektorien bei der Ortskodierung eines Magnetresonanz-Tomographiegerätes und Gerät zur Durchführung des Verfahrens
US7030611B2 (en) * 2002-12-27 2006-04-18 Kabushiki Kaisha Toshiba Magnetic resonance imaging apparatus and method incorporating multi-mode gradient coil unit
US7046003B2 (en) * 2004-09-20 2006-05-16 The Board Of Trustees Of The Leland Stanford Junior University Reduced-time variable rate excitation pulses for rapid MRI
US7635977B2 (en) * 2006-04-06 2009-12-22 Catholic Healthcare West, California Nonprofit Public Benefit Corporation MR imaging with an RF pulse producing reduced magnetization transfer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104583793A (zh) * 2012-07-25 2015-04-29 皇家飞利浦有限公司 能在不同转换速率工作的mri梯度放大器

Also Published As

Publication number Publication date
NL2001591C2 (nl) 2009-09-29
US20080284439A1 (en) 2008-11-20
JP2008284361A (ja) 2008-11-27
US7737690B2 (en) 2010-06-15

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Legal Events

Date Code Title Description
AD1A A request for search or an international type search has been filed
RD2N Patents in respect of which a decision has been taken or a report has been made (novelty report)

Effective date: 20090527

PD2B A search report has been drawn up
V1 Lapsed because of non-payment of the annual fee

Effective date: 20141201