WO2009047690A3 - Dispositif et procédé de résonance magnétique - Google Patents

Dispositif et procédé de résonance magnétique Download PDF

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Publication number
WO2009047690A3
WO2009047690A3 PCT/IB2008/054081 IB2008054081W WO2009047690A3 WO 2009047690 A3 WO2009047690 A3 WO 2009047690A3 IB 2008054081 W IB2008054081 W IB 2008054081W WO 2009047690 A3 WO2009047690 A3 WO 2009047690A3
Authority
WO
WIPO (PCT)
Prior art keywords
segments
signals
shot
space
sub
Prior art date
Application number
PCT/IB2008/054081
Other languages
English (en)
Other versions
WO2009047690A2 (fr
Inventor
Gabriele M Beck
Becker Jan F L De
Alun C R Jones
Original Assignee
Koninkl Philips Electronics Nv
Gabriele M Beck
Becker Jan F L De
Alun C R Jones
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
Priority claimed from PCT/IB2007/054111 external-priority patent/WO2008041208A2/fr
Application filed by Koninkl Philips Electronics Nv, Gabriele M Beck, Becker Jan F L De, Alun C R Jones filed Critical Koninkl Philips Electronics Nv
Publication of WO2009047690A2 publication Critical patent/WO2009047690A2/fr
Publication of WO2009047690A3 publication Critical patent/WO2009047690A3/fr

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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
    • G01R33/5601—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution involving use of a contrast agent for contrast manipulation, e.g. a paramagnetic, super-paramagnetic, ferromagnetic or hyperpolarised contrast agent
    • 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
    • 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
    • G01R33/482—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 Cartesian trajectory
    • G01R33/4822—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 Cartesian trajectory in three dimensions
    • 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
    • G01R33/54—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
    • G01R33/5607—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution by reducing the NMR signal of a particular spin species, e.g. of a chemical species for fat suppression, or of a moving spin species for black-blood 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
    • G01R33/561—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]
    • 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
    • G01R33/5602—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution by filtering or weighting based on different relaxation times within the sample, e.g. T1 weighting using an inversion pulse

Landscapes

  • Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (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)
  • Magnetic Resonance Imaging Apparatus (AREA)

Abstract

L'invention porte sur un dispositif pour une imagerie à résonance magnétique d'au moins une partie d'un corps placé dans un volume d'examen. Le dispositif est agencé pour effectuer les étapes successives suivantes : a) l'acquisition de deux signaux de résonance magnétique (RM) codés en phase de manière différente ou plus (a, b, c, d) en soumettant la partie à une photographie d'une séquence d'impulsions d'imagerie comprenant au moins une impulsion RF et des gradients de champ magnétique commutés; b) la répétition de l'étape a) pour balayer complètement l'espace k par application d'une pluralité de photographies et par utilisation d'un schéma de codage de phase selon lequel l'espace k est divisé en au moins deux segments (17, 18, 19, 20), chaque segment (17, 18, 19, 20) étant en outre divisé en sous-segments, des signaux RM (a, b, c, d) étant acquis de différents sous-segments d'un seul segment pendant chaque photographie, chaque sous-segment étant successivement agencé dans l'espace k dans l'ordre de la succession temporelle des signaux RM (a, b, c, d), et c) la reconstruction d'une image RM à partir des signaux RM acquis.
PCT/IB2008/054081 2007-10-09 2008-10-06 Dispositif et procédé de résonance magnétique WO2009047690A2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
PCT/IB2007/054111 WO2008041208A2 (fr) 2006-10-03 2007-10-09 Dispositif de résonance magnétique et procédé
IBPCT/IB2007/054111 2007-10-09
EP08152258 2008-03-04
EP08152258.3 2008-03-04

Publications (2)

Publication Number Publication Date
WO2009047690A2 WO2009047690A2 (fr) 2009-04-16
WO2009047690A3 true WO2009047690A3 (fr) 2009-07-23

Family

ID=40549676

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2008/054081 WO2009047690A2 (fr) 2007-10-09 2008-10-06 Dispositif et procédé de résonance magnétique

Country Status (1)

Country Link
WO (1) WO2009047690A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2883071A2 (fr) 2012-08-08 2015-06-17 Koninklijke Philips N.V. Imagerie par résonance magnétique à coups multiples ayant une correction de stabilité d'effet fantôme
BR112015003886A2 (pt) 2012-08-27 2017-07-04 Koninklijke Philips Nv sistema de representação de imagem por ressonância magnética, e método de representação de imagem de ressonância magnética com um agente de contraste
CN110794352B (zh) * 2018-08-02 2023-05-26 上海康达卡勒幅医疗科技有限公司 一种抑制磁共振图像伪影的方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001073462A1 (fr) * 2000-03-27 2001-10-04 Koninklijke Philips Electronics N.V. Procede d'imagerie par resonance magnetique permettant d'imager un contraste temporel
WO2005024449A1 (fr) * 2003-09-08 2005-03-17 Koninklijke Philips Electronics, N.V. Sous-ensembles d'espace-k a ordonnancement aleatoire avec des pre-impulsions partagees dans le cadre de l'irm

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001073462A1 (fr) * 2000-03-27 2001-10-04 Koninklijke Philips Electronics N.V. Procede d'imagerie par resonance magnetique permettant d'imager un contraste temporel
WO2005024449A1 (fr) * 2003-09-08 2005-03-17 Koninklijke Philips Electronics, N.V. Sous-ensembles d'espace-k a ordonnancement aleatoire avec des pre-impulsions partagees dans le cadre de l'irm

Non-Patent Citations (8)

* Cited by examiner, † Cited by third party
Title
ALTBACH MI ET AL: "Radial fast spin-echo method for T2-weighted imaging and T2 mapping of the liver", JOURNAL OF MAGNETIC RESONANCE IMAGING, SOCIETY FOR MAGNETIC RESONANCE IMAGING, OAK BROOK, IL,, US, vol. 16, no. 2, 23 July 2002 (2002-07-23), pages 179 - 189, XP002333652, ISSN: 1053-1807 *
BECK GM ET AL: "A contrast-enhanced timing robust acquisition order with a preparation of the longitudinal signal component, CENTRA+, for 3D contrast enhanced abdominal imaging", PROCEEDINGS OF THE INTERNATIONAL SOCIETY FOR MAGNETIC RESONANCE IN MEDICINE, 15TH SCIENTIFIC MEETING AND EXHIBITION, BERLIN, GERMANY, 19-25 MAY 2007, 19 May 2007 (2007-05-19), pages 3454, XP002472138 *
BECK GM ET AL: "Contrast-enhanced timing robust acquisition order with a preparation of the longitudinal signal component (CENTRA Plus) for 3D contrast-enhanced abdominal imaging", JOURNAL OF MAGNETIC RESONANCE IMAGING, vol. 27, 26 May 2008 (2008-05-26), pages 1461 - 1467, XP002528786 *
BERNSTEIN MA ET AL: "Handbook of MRI pulse sequences", 2004, ELSEVIER ACADEMIC PRESS, BURLINGTON, MA, USA, XP002472143 *
DESMOND KL ET AL: "Optimal k-space acquisition reordering for intermittent fat saturation in breast MRI", PROCEEDINGS OF THE INTERNATIONAL SOCIETY FOR MAGNETIC RESONANCE IN MEDICINE, 14TH SCIENTIFIC MEETING AND EXHIBITION, SEATTLE, WASHINGTON, USA, 6-12 MAY 2006, 6 May 2006 (2006-05-06), pages 583, XP002472141 *
HAN ET ET AL: "3D segmented elliptic-centric spoiled gradient echo imaging for the in vivo quantitation of cartilage T1rho", PROCEEDINGS OF THE INTERNATIONAL SOCIETY FOR MAGNETIC RESONANCE IN MEDICINE, 13TH SCIENTIFIC MEETING AND EXHIBITION, MIAMI BEACH, FLORIDA, USA, 7-13 MAY 2005, 7 May 2005 (2005-05-07), pages 473, XP002472139 *
HOOGEVEEN RM ET AL: "Fast dynamic, high resolution contrast-enhanced MR angiography with CENTRA keyhole and SENSE", PROCEEDINGS OF THE INTERNATIONAL SOCIETY FOR MAGNETIC RESONANCE IN MEDICINE, 12TH SCIENTIFIC MEETING AND EXHIBITION, KYOTO, JAPAN, 15-21 MAY 2004, 15 May 2004 (2004-05-15), pages 9, XP002472142 *
LIN C, BERNSTEIN MA: "3D magnetization prepared elliptical centric fast gradient echo imaging", PROCEEDINGS OF THE INTERNATIONAL SOCIETY FOR MAGNETIC RESONANCE IN MEDICINE, 14TH SCIENTIFIC MEETING AND EXHIBITION, SEATTLE, WASHINGTON, USA, 6-12 MAY 2006, 6 May 2006 (2006-05-06), pages 209, XP002472140 *

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Publication number Publication date
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