JP4954464B2 - 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 - Google Patents

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 Download PDF

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Publication number
JP4954464B2
JP4954464B2 JP2004342627A JP2004342627A JP4954464B2 JP 4954464 B2 JP4954464 B2 JP 4954464B2 JP 2004342627 A JP2004342627 A JP 2004342627A JP 2004342627 A JP2004342627 A JP 2004342627A JP 4954464 B2 JP4954464 B2 JP 4954464B2
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Prior art keywords
excitation
transmit coil
coil
transmit
pulse
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JP2005152657A (ja
JP2005152657A5 (enExample
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ユドン・チュー
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General Electric Co
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General Electric Co
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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
    • G01R33/561—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
    • 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

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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)
JP2004342627A 2003-11-26 2004-11-26 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 Expired - Lifetime JP4954464B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/723,312 2003-11-26
US10/723,312 US7053618B2 (en) 2003-11-26 2003-11-26 Method and apparatus to generate an RF excitation consistent with a desired excitation profile using a transmit coil array

Publications (3)

Publication Number Publication Date
JP2005152657A JP2005152657A (ja) 2005-06-16
JP2005152657A5 JP2005152657A5 (enExample) 2008-01-17
JP4954464B2 true JP4954464B2 (ja) 2012-06-13

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JP2004342627A Expired - Lifetime JP4954464B2 (ja) 2003-11-26 2004-11-26 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

Country Status (4)

Country Link
US (2) US7053618B2 (enExample)
JP (1) JP4954464B2 (enExample)
DE (1) DE102004057030B4 (enExample)
NL (1) NL1027586C2 (enExample)

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Also Published As

Publication number Publication date
US20050134268A1 (en) 2005-06-23
US7075302B2 (en) 2006-07-11
US7053618B2 (en) 2006-05-30
DE102004057030A1 (de) 2005-06-23
NL1027586A1 (nl) 2005-05-27
JP2005152657A (ja) 2005-06-16
US20050110488A1 (en) 2005-05-26
NL1027586C2 (nl) 2006-11-14
DE102004057030B4 (de) 2016-06-16

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