IL87065A0 - Method and apparatus for carrying out a phase correction in mr angiography - Google Patents

Method and apparatus for carrying out a phase correction in mr angiography

Info

Publication number
IL87065A0
IL87065A0 IL87065A IL8706588A IL87065A0 IL 87065 A0 IL87065 A0 IL 87065A0 IL 87065 A IL87065 A IL 87065A IL 8706588 A IL8706588 A IL 8706588A IL 87065 A0 IL87065 A0 IL 87065A0
Authority
IL
Israel
Prior art keywords
angiography
carrying
phase correction
correction
phase
Prior art date
Application number
IL87065A
Other languages
English (en)
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Publication of IL87065A0 publication Critical patent/IL87065A0/xx

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
    • G01R33/54—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
    • G01R33/563—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution of moving material, e.g. flow contrast angiography
    • 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
    • G01R33/56518—Correction of image distortions, e.g. due to magnetic field inhomogeneities due to eddy currents, e.g. caused by switching of the gradient magnetic field

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • General Health & Medical Sciences (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Vascular Medicine (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
IL87065A 1987-07-13 1988-07-11 Method and apparatus for carrying out a phase correction in mr angiography IL87065A0 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8701642A NL8701642A (nl) 1987-07-13 1987-07-13 Werkwijze en inrichting voor het uitvoeren van een fasecorrectie bij mr angiografie.

Publications (1)

Publication Number Publication Date
IL87065A0 true IL87065A0 (en) 1988-12-30

Family

ID=19850298

Family Applications (1)

Application Number Title Priority Date Filing Date
IL87065A IL87065A0 (en) 1987-07-13 1988-07-11 Method and apparatus for carrying out a phase correction in mr angiography

Country Status (6)

Country Link
US (1) US4870361A (nl)
EP (1) EP0301629B1 (nl)
JP (1) JP2685233B2 (nl)
DE (1) DE3869689D1 (nl)
IL (1) IL87065A0 (nl)
NL (1) NL8701642A (nl)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL86231A (en) * 1988-04-29 1991-07-18 Elscint Ltd Correction for eddy current caused phase degradation
US5115812A (en) * 1988-11-30 1992-05-26 Hitachi, Ltd. Magnetic resonance imaging method for moving object
JPH0318347A (ja) * 1989-06-15 1991-01-25 Hitachi Ltd 核磁気共鳴イメージング装置のシーケンス形成方法
US4959611A (en) * 1989-06-29 1990-09-25 Picker International, Inc. Out-of-slice artifact reduction technique for magnetic resonance imagers
JPH03292934A (ja) * 1990-04-09 1991-12-24 Hitachi Medical Corp 核磁気共鳴を用いた検査方法
US5204625A (en) * 1990-12-20 1993-04-20 General Electric Company Segmentation of stationary and vascular surfaces in magnetic resonance imaging
US5226418A (en) * 1991-08-01 1993-07-13 General Electric Company Phase correction of complex - difference processed magnetic resonance angiograms
DE69211806T2 (de) * 1991-10-25 1996-10-31 Univ Queensland Korrektur von Signalverzerrungen in einem magnetischen Kernresonanzapparat
US5285158A (en) * 1992-08-06 1994-02-08 Wisconsin Alumni Research Foundation NMR angiography using fast pulse sequences with preparatory pulses
US5378985A (en) * 1993-07-15 1995-01-03 General Electric Company Fast spin echo prescan for MRI system
US5998996A (en) * 1997-03-27 1999-12-07 General Electric Company Correction of artifacts caused by Maxwell terms in phase contrast angiography
US7292032B1 (en) * 2004-09-28 2007-11-06 General Electric Company Method and system of enhanced phase suppression for phase-contrast MR imaging
US7847545B2 (en) * 2008-04-11 2010-12-07 General Electric Company System and method for correcting flow velocity measurements in phase contrast imaging using magnetic field monitoring
CN101843483B (zh) * 2009-03-23 2012-07-18 西门子(深圳)磁共振有限公司 一种水脂分离实现方法和装置
JP5611882B2 (ja) * 2010-05-31 2014-10-22 株式会社東芝 磁気共鳴イメージング装置
JP5925529B2 (ja) * 2011-03-31 2016-05-25 株式会社東芝 磁気共鳴イメージング装置
WO2013040546A1 (en) * 2011-09-16 2013-03-21 University Of Pittsburgh - Of The Commonwealth Noncontact electrophysiological measurement and imaging of the heart
US10109050B2 (en) 2016-06-01 2018-10-23 Siemens Healthcare Gmbh Spatiotemporal background phase correction for phase contrast velocity encoded MRI
CN107907846B (zh) * 2017-11-27 2020-05-01 深圳先进技术研究院 涡流校正方法、装置、移动终端及可读存储介质

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4649346A (en) * 1983-11-09 1987-03-10 Technicare Corporation Complex quotient nuclear magnetic resonance imaging
US4595879A (en) * 1983-11-14 1986-06-17 Technicare Corporation Nuclear magnetic resonance flow imaging
US4609872A (en) * 1984-08-10 1986-09-02 General Electric Company NMR multiple-echo phase-contrast blood flow imaging
JPH07108288B2 (ja) * 1985-02-15 1995-11-22 株式会社日立製作所 Ｎｍｒイメ−ジング方法
US4724388A (en) * 1985-06-07 1988-02-09 Hitachi, Ltd. Magnetic resonance imaging method
US4683431A (en) * 1985-08-16 1987-07-28 Picker International, Inc. Magnetic resonance imaging of high velocity flows
US4689560A (en) * 1985-08-16 1987-08-25 Picker International, Inc. Low R.F. dosage magnetic resonance imaging of high velocity flows
US4718424A (en) * 1986-08-07 1988-01-12 Stanford University NMR imaging of blood flow by moment variation of magnetic gradients

Also Published As

Publication number Publication date
JP2685233B2 (ja) 1997-12-03
EP0301629A1 (en) 1989-02-01
JPS6427545A (en) 1989-01-30
NL8701642A (nl) 1989-02-01
US4870361A (en) 1989-09-26
EP0301629B1 (en) 1992-04-01
DE3869689D1 (de) 1992-05-07

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