EP2288941A4 - Étiquetage de phase utilisant le codage de sensibilité : acquisition de données et reconstruction d'image pour correction de distorsion géométrique en imagerie écho-planaire - Google Patents

Étiquetage de phase utilisant le codage de sensibilité : acquisition de données et reconstruction d'image pour correction de distorsion géométrique en imagerie écho-planaire

Info

Publication number
EP2288941A4
EP2288941A4 EP09739969A EP09739969A EP2288941A4 EP 2288941 A4 EP2288941 A4 EP 2288941A4 EP 09739969 A EP09739969 A EP 09739969A EP 09739969 A EP09739969 A EP 09739969A EP 2288941 A4 EP2288941 A4 EP 2288941A4
Authority
EP
European Patent Office
Prior art keywords
echo
data acquisition
image reconstruction
distortion correction
geometric distortion
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.)
Withdrawn
Application number
EP09739969A
Other languages
German (de)
English (en)
Other versions
EP2288941A1 (fr
Inventor
Udomchai Techavipoo
Thomas P Leist
Song Lai
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.)
Thomas Jefferson University
Original Assignee
Thomas Jefferson 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 Thomas Jefferson University filed Critical Thomas Jefferson University
Publication of EP2288941A1 publication Critical patent/EP2288941A1/fr
Publication of EP2288941A4 publication Critical patent/EP2288941A4/fr
Withdrawn legal-status Critical Current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
    • G01R33/54—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
    • G01R33/56563—Correction of image distortions, e.g. due to magnetic field inhomogeneities caused by a distortion of the main magnetic field B0, e.g. temporal variation of the magnitude or spatial inhomogeneity of B0
    • 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
    • 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
    • G01R33/5615—Echo train techniques involving acquiring plural, differently encoded, echo signals after one RF excitation, e.g. using gradient refocusing in echo planar imaging [EPI], RF refocusing in rapid acquisition with relaxation enhancement [RARE] or using both RF and gradient refocusing in gradient and spin echo imaging [GRASE]
    • G01R33/5616—Echo train techniques involving acquiring plural, differently encoded, echo signals after one RF excitation, e.g. using gradient refocusing in echo planar imaging [EPI], RF refocusing in rapid acquisition with relaxation enhancement [RARE] or using both RF and gradient refocusing in gradient and spin echo imaging [GRASE] using gradient refocusing, e.g. EPI
    • 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
    • G01R33/56341—Diffusion 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
    • G01R33/54—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
    • G01R33/56509—Correction of image distortions, e.g. due to magnetic field inhomogeneities due to motion, displacement or flow, e.g. gradient moment nulling
    • 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
    • G01R33/4806—Functional imaging of brain activation
    • 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
    • G01R33/56554—Correction of image distortions, e.g. due to magnetic field inhomogeneities caused by acquiring plural, differently encoded echo signals after one RF excitation, e.g. correction for readout gradients of alternating polarity in EPI

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • General Health & Medical Sciences (AREA)
  • Radiology & Medical Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Vascular Medicine (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
EP09739969A 2008-05-02 2009-05-01 Étiquetage de phase utilisant le codage de sensibilité : acquisition de données et reconstruction d'image pour correction de distorsion géométrique en imagerie écho-planaire Withdrawn EP2288941A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US5005208P 2008-05-02 2008-05-02
PCT/US2009/042593 WO2009135167A1 (fr) 2008-05-02 2009-05-01 Étiquetage de phase utilisant le codage de sensibilité : acquisition de données et reconstruction d'image pour correction de distorsion géométrique en imagerie écho-planaire

Publications (2)

Publication Number Publication Date
EP2288941A1 EP2288941A1 (fr) 2011-03-02
EP2288941A4 true EP2288941A4 (fr) 2011-12-21

Family

ID=41255455

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09739969A Withdrawn EP2288941A4 (fr) 2008-05-02 2009-05-01 Étiquetage de phase utilisant le codage de sensibilité : acquisition de données et reconstruction d'image pour correction de distorsion géométrique en imagerie écho-planaire

Country Status (2)

Country Link
EP (1) EP2288941A4 (fr)
WO (1) WO2009135167A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011077197B4 (de) * 2011-06-08 2013-05-16 Siemens Aktiengesellschaft Verzeichnungskorrektur bei einer Magnetresonanz-Bildgebung
DE102011083395B4 (de) * 2011-09-26 2013-06-13 Siemens Aktiengesellschaft Korrektur von Verzerrungen in MR-Bildern aufgrund von Inhomogenitäten des Grundmagnetfeldes
CN105308469B (zh) * 2013-06-06 2019-11-12 皇家飞利浦有限公司 一种mr成像方法、mr设备以及相关数据载体
US10302726B2 (en) 2014-07-03 2019-05-28 Koninklijke Philips N.V. Image reconstruction for MRI using multiplexed sensitivity encoding

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008004192A2 (fr) * 2006-07-06 2008-01-10 Koninklijke Philips Electronics N.V. Dispositif à résonance magnétique et procédé correspondant

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5498963A (en) * 1994-08-05 1996-03-12 General Electric Company Correction of geometric distortion in MRI phase and phase difference images
US6144772A (en) * 1998-01-29 2000-11-07 Canon Kabushiki Kaisha Variable compression encoding of digitized images
WO2001044828A1 (fr) * 1999-12-17 2001-06-21 Maxygen, Inc. Procedes de detection parallele de compositions ayant des caracteristiques desirees par spectroscopie irm
US6841998B1 (en) * 2001-04-06 2005-01-11 Mark Griswold Magnetic resonance imaging method and apparatus employing partial parallel acquisition, wherein each coil produces a complete k-space datasheet
US7945305B2 (en) * 2005-04-14 2011-05-17 The Board Of Trustees Of The University Of Illinois Adaptive acquisition and reconstruction of dynamic MR images

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008004192A2 (fr) * 2006-07-06 2008-01-10 Koninklijke Philips Electronics N.V. Dispositif à résonance magnétique et procédé correspondant

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
See also references of WO2009135167A1 *
TECHAVIPOO U. ET AL: "PLACE+SPHERE: A Robust Approach for Correction of Susceptibility Artifacts in EPI", JOINT ANNUAL MEETING ISMRM-ESMRMB, CONFERENCE PROCEEDINGS, 19 May 2007 (2007-05-19), Berlin, XP002661000 *
TECHAVIPOO UDOMCHAI ET AL: "Phase labeling using sensitivity encoding (PLUS): data acquisition and image reconstruction for geometric distortion correction in EPI.", MAGNETIC RESONANCE IN MEDICINE : OFFICIAL JOURNAL OF THE SOCIETY OF MAGNETIC RESONANCE IN MEDICINE / SOCIETY OF MAGNETIC RESONANCE IN MEDICINE MAR 2009 LNKD- PUBMED:19097237, vol. 61, no. 3, March 2009 (2009-03-01), pages 650 - 658, XP002661002, ISSN: 1522-2594 *
XIANG Q -S ET AL: "Correction for geometric distortion and N/2 ghosting in EPI by phase labeling for additional coordinate encoding (PLACE)", MAGNETIC RESONANCE IN MEDICINE WILEY USA, vol. 57, no. 4, April 2007 (2007-04-01), pages 731 - 741, XP002661001, ISSN: 0740-3194 *

Also Published As

Publication number Publication date
WO2009135167A1 (fr) 2009-11-05
EP2288941A1 (fr) 2011-03-02

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