[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

IN2014CN02547A - - Google Patents

Download PDF

Info

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

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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (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)
  • Magnetic Resonance Imaging Apparatus (AREA)

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

ID=47226231

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)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US11158029B2 (en) * 2016-02-12 2021-10-26 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
US8736265B2 (en) * 2008-09-17 2014-05-27 Koninklijke Philips N.V. B1-mapping and B1L-shimming for MRI
JP5814912B2 (en) * 2010-03-31 2015-11-17 株式会社日立メディコ Magnetic resonance imaging apparatus and SAR adjustment method

Also Published As

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

Similar Documents

Publication Publication Date Title
IN2014CN02547A (en)
Setsompop et al. Pushing the limits of in vivo diffusion MRI for the Human Connectome Project
WO2020028257A3 (en) Deep learning techniques for magnetic resonance image reconstruction
IN2013CN00309A (en)
BR112014028903A2 (en) magnetic resonance imaging system, and method of magnetic resonance imaging
EP2500742A1 (en) Restriction of the imaging region for MRI in an inhomogeneous magnetic field
GB2497692A (en) Virtual coil emulation in parallel transmission mri
WO2013001399A3 (en) Bone mri using an ultrashort echo time pulse sequence with fid and multiple gradient echo acquisition and water - fat separation processing
WO2010108161A3 (en) Multi-phase pseudo-continuing arterial spin labeling
WO2011139745A3 (en) Systems and methods for susceptibility tensor imaging
JP2011521760A5 (en)
IN2014CN05013A (en)
SA516371728B1 (en) T2 inversions with reduced motion artifacts
WO2010104855A3 (en) Apparatus and method for magnetic resonance imaging with high spatial and temporal resolutions
IN2014MN02502A (en)
CN106646301B (en) A method of eliminating magnetic resonance imaging gradin-echo odd even phase difference
GB2488288A (en) Method and apparatus to incorporated internal gradient and resticted diffusion in NMR inversion
EP2735882A3 (en) MRI system and method of diagnosing the same
EP3523669B1 (en) Combined arterial spin labeling and magnetic resonance fingerprinting
GB2552434A (en) System and method for magnetic resonance coil arrangement
AU2018329432A1 (en) Method for performing diffusion weighted magnetic resonance measurements
GB2594124B (en) Dynamic B0 shimming for improved fat saturation in magnetic resonance imaging (MRI)
EP2708909A3 (en) Method of generating a susceptibility weighted MR image
ATE405850T1 (en) MAGNETIC RESONANCE-BASED METHOD FOR CREATING A FAST DYNAMIC IMAGE
Obuchowicz et al. Improvement of brain tractography using the BSD-DTI method on the example of subcortical u-fibers visualisation