IN2014CN02547A - - Google Patents

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Publication number
IN2014CN02547A
IN2014CN02547A IN2547CHN2014A IN2014CN02547A IN 2014CN02547 A IN2014CN02547 A IN 2014CN02547A IN 2547CHN2014 A IN2547CHN2014 A IN 2547CHN2014A IN 2014CN02547 A IN2014CN02547 A IN 2014CN02547A
Authority
IN
India
Prior art keywords
sequence
magnetic resonance
scan
data
information
Prior art date
Application number
Inventor
Feng Huang
George Randall Duensing
Wei Lin
Original Assignee
Koninkl 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 Koninkl Philips Nv filed Critical Koninkl Philips Nv
Publication of IN2014CN02547A publication Critical patent/IN2014CN02547A/en

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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
    • 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
    • G01R33/543—Control of the operation of the MR system, e.g. setting of acquisition parameters prior to or during MR data acquisition, dynamic shimming, use of one or more scout images for scan plane prescription
    • 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
    • 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
    • G01R33/24—Arrangements or instruments for measuring magnetic variables involving magnetic resonance for measuring direction or magnitude of magnetic fields or magnetic flux
    • G01R33/243—Spatial mapping of the polarizing magnetic field
    • 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
    • G01R33/24—Arrangements or instruments for measuring magnetic variables involving magnetic resonance for measuring direction or magnitude of magnetic fields or magnetic flux
    • G01R33/246—Spatial mapping of the RF magnetic field B1
    • 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
    • G01R33/565—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

Abstract

A method of magnetic resonance imaging includes performing a first magnetic resonance scan sequence which saves a data store and performing a second magnetic resonance scan sequence which uses a data store from the first magnetic resonance scan sequence. A magnet (10) generates a B field in an examination region (12) a gradient coil system (14 22) creates magnetic gradients in the examination region and an RF system (16 18 20) induces resonance in and receives resonance signals from a subject in the examination region. One or more processors (30) are programmed to perform a magnetic resonance pre scan sequence to generate pre scan information perform a first sequence to generate first sequence data refine the pre scan information with the first sequence data perform a second imaging sequence to generate second sequence data. Further the second sequence data is either reconstructed using the refined pre scan information or performed using the refined pre scan sequence information.
IN2547CHN2014 2011-10-18 2012-10-10 IN2014CN02547A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201161548241P 2011-10-18 2011-10-18
PCT/IB2012/055471 WO2013057629A2 (en) 2011-10-18 2012-10-10 Mr imaging using shared information among images with different contrast

Publications (1)

Publication Number Publication Date
IN2014CN02547A true IN2014CN02547A (en) 2015-07-31

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
IN2547CHN2014 IN2014CN02547A (en) 2011-10-18 2012-10-10

Country Status (8)

Country Link
US (1) US20140239949A1 (en)
EP (1) EP2751586A2 (en)
JP (1) JP2014530080A (en)
CN (1) CN103930790A (en)
BR (1) BR112014009133A8 (en)
IN (1) IN2014CN02547A (en)
RU (1) RU2014119867A (en)
WO (1) WO2013057629A2 (en)

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* Cited by examiner, † Cited by third party
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CN105785297B (en) * 2014-12-18 2019-11-12 西门子(深圳)磁共振有限公司 Multi-slice collecting method and its MR imaging method
JP6495057B2 (en) * 2015-03-16 2019-04-03 キヤノンメディカルシステムズ株式会社 MRI apparatus and imaging time reduction method
WO2016180786A1 (en) * 2015-05-12 2016-11-17 Koninklijke Philips N.V. Magnetic resonance examination system with field probes
WO2016186644A1 (en) * 2015-05-18 2016-11-24 The Johns Hopkins University System and method of obtaining spatially-encoded nmr parameters from arbitrarily-shaped compartments and linear algebraic modeling
EP3184071A1 (en) * 2015-12-22 2017-06-28 SpineMind AG Device for intraoperative image-guided navigation during surgical interventions in the vicinity of the spine and the adjoining thoracic, pelvis or head area
CA3013939C (en) * 2016-02-12 2022-06-21 Vigilance Health Imaging Network Inc. Distortion correction of multiple mri images based on a full body reference image
EP3457160A1 (en) * 2017-09-14 2019-03-20 Koninklijke Philips N.V. Parallel magnetic resonance imaging with archived coil sensitivity maps
EP3457156A1 (en) * 2017-09-19 2019-03-20 Siemens Healthcare GmbH Integrated control device for a magnetic resonance device
CN108333544B (en) * 2018-01-03 2020-06-16 上海东软医疗科技有限公司 Planar echo imaging method and device
CN112423659B (en) * 2018-05-21 2023-04-21 上海联影医疗科技股份有限公司 System and method for multi-contrast magnetic resonance imaging
EP3719525A1 (en) 2019-04-01 2020-10-07 Koninklijke Philips N.V. Correction of magnetic resonance images using simulated magnetic resonance images
CN114515168B (en) * 2020-11-19 2024-04-16 深圳迈瑞生物医疗电子股份有限公司 Ultrasonic imaging system
US20230194639A1 (en) * 2021-12-16 2023-06-22 Siemens Healthcare Gmbh Method for acquiring a magnetic resonance image dataset of a subject and magnetic resonance imaging system

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2737608B2 (en) * 1993-07-31 1998-04-08 株式会社島津製作所 MR imaging device
US5713358A (en) * 1996-03-26 1998-02-03 Wisconsin Alumni Research Foundation Method for producing a time-resolved series of 3D magnetic resonance angiograms during the first passage of contrast agent
JP3748661B2 (en) * 1997-04-07 2006-02-22 ジーイー横河メディカルシステム株式会社 MRI equipment
JP5002099B2 (en) * 2001-08-31 2012-08-15 株式会社東芝 Magnetic resonance imaging system
US7245124B2 (en) * 2005-04-12 2007-07-17 Mayo Foundation For Medical Education And Research Under-sampled 3D MRI using a shells k-space sampling trajectory
CN102159965B (en) * 2008-09-17 2014-09-24 皇家飞利浦电子股份有限公司 B1-mapping and b1l-shimming for mri
US9198598B2 (en) * 2010-03-31 2015-12-01 Hitachi Medical Corporation Magnetic resonance imaging apparatus and SAR adjustment method

Also Published As

Publication number Publication date
CN103930790A (en) 2014-07-16
WO2013057629A3 (en) 2013-06-13
BR112014009133A2 (en) 2017-06-13
BR112014009133A8 (en) 2017-06-20
JP2014530080A (en) 2014-11-17
WO2013057629A2 (en) 2013-04-25
EP2751586A2 (en) 2014-07-09
RU2014119867A (en) 2015-11-27
US20140239949A1 (en) 2014-08-28

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