WO2008026174A3 - Multi-channel magnetic resonance imaging and spectroscopy - Google Patents

Multi-channel magnetic resonance imaging and spectroscopy Download PDF

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Publication number
WO2008026174A3
WO2008026174A3 PCT/IB2007/053475 IB2007053475W WO2008026174A3 WO 2008026174 A3 WO2008026174 A3 WO 2008026174A3 IB 2007053475 W IB2007053475 W IB 2007053475W WO 2008026174 A3 WO2008026174 A3 WO 2008026174A3
Authority
WO
WIPO (PCT)
Prior art keywords
segment
magnetic resonance
spectroscopy
resonance imaging
acq
Prior art date
Application number
PCT/IB2007/053475
Other languages
French (fr)
Other versions
WO2008026174A2 (en
Inventor
Paul Royston Harvey
Original Assignee
Koninkl Philips Electronics Nv
Paul Royston Harvey
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 Electronics Nv, Paul Royston Harvey filed Critical Koninkl Philips Electronics Nv
Priority to EP07826192.2A priority Critical patent/EP2078210B1/en
Priority to CN2007800319335A priority patent/CN101512371B/en
Priority to US12/439,246 priority patent/US8072211B2/en
Publication of WO2008026174A2 publication Critical patent/WO2008026174A2/en
Publication of WO2008026174A3 publication Critical patent/WO2008026174A3/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
    • G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
    • G01R33/34—Constructional details, e.g. resonators, specially adapted to MR
    • G01R33/341—Constructional details, e.g. resonators, specially adapted to MR comprising surface coils
    • G01R33/3415—Constructional details, e.g. resonators, specially adapted to MR comprising surface coils comprising arrays of sub-coils, i.e. phased-array coils with flexible receiver channels
    • 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
    • G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
    • G01R33/36—Electrical details, e.g. matching or coupling of the coil to the receiver
    • G01R33/3664—Switching for purposes other than coil coupling or decoupling, e.g. switching between a phased array mode and a quadrature mode, switching between surface coil modes of different geometrical shapes, switching from a whole body reception coil to a local reception coil or switching for automatic coil selection in moving table MR or for changing the field-of-view
    • 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
    • G01R33/5659—Correction of image distortions, e.g. due to magnetic field inhomogeneities caused by a distortion of the RF magnetic field, e.g. spatial inhomogeneities of the RF 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
    • G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/48—NMR imaging systems
    • G01R33/483—NMR imaging systems with selection of signals or spectra from particular regions of the volume, e.g. in vivo spectroscopy
    • G01R33/4838—NMR imaging systems with selection of signals or spectra from particular regions of the volume, e.g. in vivo spectroscopy using spatially selective suppression or saturation of MR signals

Abstract

A magnetic resonance (MR) system comprising multiple radio-frequency (RP) coils (303) configured to apply an MR pulse sequence (100) including at least a preparation segment (PRP) and an acquisition segment (ACQ), wherein the preparation segment (PRP) and the acquisition segment (ACQ) each comprise one or more excitation pulses, is disclosed herein. The MR system further comprises a first control unit (308) configured to apply the one or more excitation pulses of the preparation segment (PRP) by activating the multiple radio -frequency coils in a first excitation pattern, and a second control unit configured to apply the one or more excitation pulses of the acquisition segment (ACQ) by activating the multiple radio-frequency coils in a second excitation pattern, thereby providing dynamic rf shimming.
PCT/IB2007/053475 2006-08-30 2007-08-29 Multi-channel magnetic resonance imaging and spectroscopy WO2008026174A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP07826192.2A EP2078210B1 (en) 2006-08-30 2007-08-29 Multi-channel magnetic resonance imaging and spectroscopy
CN2007800319335A CN101512371B (en) 2006-08-30 2007-08-29 Multi-channel magnetic resonance imaging and spectroscopy
US12/439,246 US8072211B2 (en) 2006-08-30 2007-08-29 Multi-channel magnetic resonance imaging and spectroscopy

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP06119762.0 2006-08-30
EP06119762 2006-08-30

Publications (2)

Publication Number Publication Date
WO2008026174A2 WO2008026174A2 (en) 2008-03-06
WO2008026174A3 true WO2008026174A3 (en) 2008-06-12

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2007/053475 WO2008026174A2 (en) 2006-08-30 2007-08-29 Multi-channel magnetic resonance imaging and spectroscopy

Country Status (4)

Country Link
US (1) US8072211B2 (en)
EP (1) EP2078210B1 (en)
CN (1) CN101512371B (en)
WO (1) WO2008026174A2 (en)

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US8217653B2 (en) * 2008-02-21 2012-07-10 Regents Of The University Of Minnesota Multi-channel RF coil system with multi-channel RF coil transceiver detecting more than one frequency at the same time for magnetic resonance imaging systems and methods
DE102008015054B3 (en) * 2008-03-19 2010-01-28 Universitätsklinikum Freiburg MR method for selective excitation
JP6133537B2 (en) * 2008-09-17 2017-05-24 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． MRI B1 mapping and B1 shimming
US8228061B2 (en) * 2009-03-20 2012-07-24 Griswold Mark A Mitigating off-resonance angle in steady-state coherent imaging
GB2497692B (en) * 2010-08-20 2017-06-07 Koninklijke Philips Nv Virtual coil emulation in parallel transmission mri
JP5971677B2 (en) * 2010-11-26 2016-08-17 東芝メディカルシステムズ株式会社 Magnetic resonance diagnostic apparatus and magnetic resonance spectroscopy data collection method
US9529064B2 (en) * 2011-02-15 2016-12-27 Koninklijke Philips N.V. Broad bandwidth magnetic resonance spectroscopy at high static (B0) magnetic field using polarization transfer
US10159413B2 (en) 2012-02-08 2018-12-25 Anatech Advanced Nmr Algorithms Technologies Ltd. Apparatus and method for non-invasive measurement of blood parameters
US20150309132A1 (en) * 2014-04-24 2015-10-29 New York University Apparatus, method and coil array for providing split parallel transmission magnetic resonance imaging
DE102014209783B4 (en) 2014-05-22 2018-06-14 Siemens Healthcare Gmbh Creating an MR image using a combination of a whole-body coil and a local transmitter coil
CN105548927B (en) * 2015-08-06 2018-11-09 清华大学 The magnetic resonance diffusion imaging method repeatedly excited excited simultaneously based on multilayer
JP5943159B2 (en) * 2016-01-04 2016-06-29 株式会社日立製作所 Magnetic resonance imaging system
KR101819908B1 (en) * 2016-05-27 2018-01-18 한국과학기술원 Method and Apparatus for Processing MRI Images
EP3546967B1 (en) * 2018-03-26 2022-11-23 Siemens Healthcare GmbH Local coil matrix and method for imaging
CN109799471B (en) * 2019-01-11 2021-02-26 中国科学院苏州生物医学工程技术研究所 Magnetic resonance spectrum imaging simulation method and system, storage medium and electronic equipment
CN110031786B (en) * 2019-05-14 2022-01-11 上海联影医疗科技股份有限公司 Magnetic resonance image reconstruction method, magnetic resonance imaging apparatus, and medium
CN112230271A (en) * 2019-07-15 2021-01-15 中国石油天然气集团有限公司 Communication method, device and system based on wired acquisition equipment

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Also Published As

Publication number Publication date
WO2008026174A2 (en) 2008-03-06
EP2078210A2 (en) 2009-07-15
US20110128000A1 (en) 2011-06-02
US8072211B2 (en) 2011-12-06
CN101512371B (en) 2012-09-05
EP2078210B1 (en) 2019-05-22
CN101512371A (en) 2009-08-19

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