AU3502495A - Method of minimizing dead-periods in order to obtain hardware optimized gradient waveforms - Google Patents

Method of minimizing dead-periods in order to obtain hardware optimized gradient waveforms

Info

Publication number
AU3502495A
AU3502495A AU35024/95A AU3502495A AU3502495A AU 3502495 A AU3502495 A AU 3502495A AU 35024/95 A AU35024/95 A AU 35024/95A AU 3502495 A AU3502495 A AU 3502495A AU 3502495 A AU3502495 A AU 3502495A
Authority
AU
Australia
Prior art keywords
periods
order
gradient waveforms
obtain hardware
minimizing dead
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.)
Abandoned
Application number
AU35024/95A
Other languages
English (en)
Inventor
Ergin Atalar
Elliot Ross Mcveigh
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.)
Johns Hopkins University
Original Assignee
Johns Hopkins University
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 Johns Hopkins University filed Critical Johns Hopkins University
Publication of AU3502495A publication Critical patent/AU3502495A/en
Abandoned legal-status Critical Current

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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Geophysics And Detection Of Objects (AREA)
AU35024/95A 1994-11-25 1995-09-01 Method of minimizing dead-periods in order to obtain hardware optimized gradient waveforms Abandoned AU3502495A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/346,130 US5512825A (en) 1994-11-25 1994-11-25 Method of minimizing dead-periods in magnetic resonance imaging pulse sequences and associated apparatus
US346130 1994-11-25
PCT/US1995/011167 WO1996017261A1 (en) 1994-11-25 1995-09-01 Method of minimizing dead-periods in order to obtain hardware optimized gradient waveforms

Publications (1)

Publication Number Publication Date
AU3502495A true AU3502495A (en) 1996-06-19

Family

ID=23358098

Family Applications (1)

Application Number Title Priority Date Filing Date
AU35024/95A Abandoned AU3502495A (en) 1994-11-25 1995-09-01 Method of minimizing dead-periods in order to obtain hardware optimized gradient waveforms

Country Status (5)

Country Link
US (1) US5512825A (enExample)
EP (1) EP0809810A1 (enExample)
JP (1) JPH10509893A (enExample)
AU (1) AU3502495A (enExample)
WO (1) WO1996017261A1 (enExample)

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US6597935B2 (en) 2000-02-10 2003-07-22 The Johns Hopkins University Method for harmonic phase magnetic resonance imaging
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US8509913B2 (en) * 2001-04-13 2013-08-13 Greatbatch Ltd. Switched diverter circuits for minimizing heating of an implanted lead and/or providing EMI protection in a high power electromagnetic field environment
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US8977355B2 (en) 2001-04-13 2015-03-10 Greatbatch Ltd. EMI filter employing a capacitor and an inductor tank circuit having optimum component values
US8219208B2 (en) * 2001-04-13 2012-07-10 Greatbatch Ltd. Frequency selective passive component networks for active implantable medical devices utilizing an energy dissipating surface
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US9295828B2 (en) 2001-04-13 2016-03-29 Greatbatch Ltd. Self-resonant inductor wound portion of an implantable lead for enhanced MRI compatibility of active implantable medical devices
US6778847B2 (en) 2002-05-03 2004-08-17 The Trustees Of Columbia University In The City Of New York System and method for MRI tagging using spatial modulation of magnetization
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US7561909B1 (en) 2002-09-16 2009-07-14 The United States Of America As Represented By The Department Of Health And Human Services MRI navigator methods and systems
US7993285B2 (en) * 2002-11-05 2011-08-09 Boston Scientific Scimed, Inc. Medical device having flexible distal tip
US7301341B2 (en) * 2003-10-08 2007-11-27 The Board Of Trustees Of The Leland Stanford Junior University MRI gradient waveform design using convex optimization
US20100191306A1 (en) * 2006-01-25 2010-07-29 Greatbatch Ltd. Transient voltage suppression circuit for an implanted rfid chip
US8903505B2 (en) 2006-06-08 2014-12-02 Greatbatch Ltd. Implantable lead bandstop filter employing an inductive coil with parasitic capacitance to enhance MRI compatibility of active medical devices
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US8882763B2 (en) 2010-01-12 2014-11-11 Greatbatch Ltd. Patient attached bonding strap for energy dissipation from a probe or a catheter during magnetic resonance imaging
US10596369B2 (en) 2011-03-01 2020-03-24 Greatbatch Ltd. Low equivalent series resistance RF filter for an active implantable medical device
US10272252B2 (en) 2016-11-08 2019-04-30 Greatbatch Ltd. Hermetic terminal for an AIMD having a composite brazed conductive lead
US9931514B2 (en) 2013-06-30 2018-04-03 Greatbatch Ltd. Low impedance oxide resistant grounded capacitor for an AIMD
US9427596B2 (en) 2013-01-16 2016-08-30 Greatbatch Ltd. Low impedance oxide resistant grounded capacitor for an AIMD
US11198014B2 (en) 2011-03-01 2021-12-14 Greatbatch Ltd. Hermetically sealed filtered feedthrough assembly having a capacitor with an oxide resistant electrical connection to an active implantable medical device housing
US10350421B2 (en) 2013-06-30 2019-07-16 Greatbatch Ltd. Metallurgically bonded gold pocket pad for grounding an EMI filter to a hermetic terminal for an active implantable medical device
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Also Published As

Publication number Publication date
EP0809810A4 (enExample) 1997-12-03
US5512825A (en) 1996-04-30
WO1996017261A1 (en) 1996-06-06
JPH10509893A (ja) 1998-09-29
EP0809810A1 (en) 1997-12-03

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