RU2577172C2 - Пассивное шиммирование поля в1 - Google Patents

Пассивное шиммирование поля в1 Download PDF

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Publication number
RU2577172C2
RU2577172C2 RU2013132722/28A RU2013132722A RU2577172C2 RU 2577172 C2 RU2577172 C2 RU 2577172C2 RU 2013132722/28 A RU2013132722/28 A RU 2013132722/28A RU 2013132722 A RU2013132722 A RU 2013132722A RU 2577172 C2 RU2577172 C2 RU 2577172C2
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RU
Russia
Prior art keywords
field
coil
excitation
magnetic resonance
dielectric
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RU2013132722/28A
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English (en)
Russian (ru)
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RU2013132722A (ru
Inventor
Чжиюн ЧЖАЙ
Майкл Эндрю МОРИХ
Пол Ройстон ХАРВИ
Миха ФЮДЕРЕР
Original Assignee
Конинклейке Филипс Электроникс Н.В.
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    • 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
    • G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
    • G01R33/387—Compensation of inhomogeneities
    • G01R33/3873—Compensation of inhomogeneities using ferromagnetic bodies ; Passive shimming
    • 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
    • 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
    • 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
    • G01R33/24—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
    • G01R33/28—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
    • G01R33/34046—Volume type coils, e.g. bird-cage coils; Quadrature bird-cage coils; Circularly polarised coils
    • G01R33/34076—Birdcage coils

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  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • High Energy & Nuclear Physics (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)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
RU2013132722/28A 2010-12-16 2011-12-05 Пассивное шиммирование поля в1 RU2577172C2 (ru)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US42362410P 2010-12-16 2010-12-16
US61/423,624 2010-12-16
PCT/IB2011/055450 WO2012080898A1 (en) 2010-12-16 2011-12-05 Passive b1 field shimming

Publications (2)

Publication Number Publication Date
RU2013132722A RU2013132722A (ru) 2015-01-27
RU2577172C2 true RU2577172C2 (ru) 2016-03-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
RU2013132722/28A RU2577172C2 (ru) 2010-12-16 2011-12-05 Пассивное шиммирование поля в1

Country Status (7)

Country Link
US (1) US9689941B2 (enExample)
EP (1) EP2652516B1 (enExample)
JP (1) JP6085567B2 (enExample)
CN (1) CN103261906B (enExample)
BR (1) BR112013014672A2 (enExample)
RU (1) RU2577172C2 (enExample)
WO (1) WO2012080898A1 (enExample)

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US8686728B2 (en) * 2011-07-21 2014-04-01 Siemens Medical Solutions Usa, Inc. System for adapting an RF transmission magnetic field for image acquisition
US9297867B2 (en) * 2012-01-05 2016-03-29 General Electric Company Radio frequncy (RF) body coil and method for tuning an RF body coil for magnetic resonance imaging
JP6108953B2 (ja) * 2012-06-15 2017-04-05 キヤノン株式会社 医療用装置
DE102013009630A1 (de) 2013-06-10 2014-12-11 Forschungszentrum Jülich GmbH Verfahren zur Homogenisierung eines B1-Sendefeldes
DE102013213538B4 (de) * 2013-07-10 2018-08-16 Siemens Healthcare Gmbh Patienten-Bore mit integrierter HF-Rückflussraumformung zur Minimierung der Kopplung zwischen einer Energiekette und lokalen HF-Sendespulen
GB2524494A (en) * 2014-03-24 2015-09-30 Siemens Plc Shimming device for a magnetic resonance imaging apparatus with enhanced cooling and method for providing such a device
EP3145402A4 (en) * 2014-05-20 2018-03-07 The Medical College of Wisconsin, Inc. System and method for fabricating electromagnetic field enhancing objects for magnetic resonance imaging
EP3428673A1 (en) * 2017-07-13 2019-01-16 Koninklijke Philips N.V. Passive rf shim resonator for field homogenization of an rf antenna device for tx mode and rx mode
US11221382B2 (en) 2017-10-06 2022-01-11 Advanced Imaging Research, Inc. Optimized infant MRI system with cryocooled RF coil
WO2019126936A1 (zh) * 2017-12-25 2019-07-04 深圳先进技术研究院 一种用于磁共振成像的高介电常数衬垫新型结构
CN109953759A (zh) * 2017-12-26 2019-07-02 深圳先进技术研究院 一种胎儿磁共振成像方法及其装置
EP3511727A1 (en) * 2018-01-11 2019-07-17 Koninklijke Philips N.V. Active b1+ shimming of transmission coils
US12191082B2 (en) 2020-06-29 2025-01-07 HyQ Research Solutions, LLC Matrix assembly having solid dielectric elements and a tailored bulk dielectric constant and method of manufacturing same
CN112816923B (zh) * 2020-12-29 2023-07-28 深圳市联影高端医疗装备创新研究院 一种超高场发射匀场线圈结构
NL2031618B1 (en) * 2022-04-19 2023-11-06 Univ Delft Tech Shim for mitigating effects of field inhomogeneities in magnetic resonance imaging and method thereof

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US20080054902A1 (en) * 2006-09-05 2008-03-06 Max-Planck-Gesellschaft Zur Forderung Der Wissenschaften E.V. Passive shimming for MR spectroscopy at high magnetic fields
RU2008102642A (ru) * 2005-06-24 2009-07-27 Конинклейке Филипс Электроникс Н.В. (Nl) Магнитно-резонансное устройство и способ
US20100277174A1 (en) * 2007-12-21 2010-11-04 Koninklijke Philips Electronics N.V. PASSIVE SHIMS TO INCREASE THE EFFECTIVE B0 and B1 UNIFORMITY IN A BODY COIL
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US5623430A (en) * 1995-01-17 1997-04-22 General Electric Company Method for passively shimming an open magnet
RU2008102642A (ru) * 2005-06-24 2009-07-27 Конинклейке Филипс Электроникс Н.В. (Nl) Магнитно-резонансное устройство и способ
US20080054902A1 (en) * 2006-09-05 2008-03-06 Max-Planck-Gesellschaft Zur Forderung Der Wissenschaften E.V. Passive shimming for MR spectroscopy at high magnetic fields
RU2009120604A (ru) * 2006-10-31 2010-12-10 Конинклейке Филипс Электроникс Н.В. (Nl) Гибридные системы получения изображений методами позитронно-эмиссионной/магнитно-резонансной томографии
US20100277174A1 (en) * 2007-12-21 2010-11-04 Koninklijke Philips Electronics N.V. PASSIVE SHIMS TO INCREASE THE EFFECTIVE B0 and B1 UNIFORMITY IN A BODY COIL

Also Published As

Publication number Publication date
EP2652516B1 (en) 2019-11-27
JP6085567B2 (ja) 2017-02-22
CN103261906A (zh) 2013-08-21
RU2013132722A (ru) 2015-01-27
WO2012080898A1 (en) 2012-06-21
JP2013545573A (ja) 2013-12-26
US20130278262A1 (en) 2013-10-24
US9689941B2 (en) 2017-06-27
EP2652516A1 (en) 2013-10-23
CN103261906B (zh) 2016-03-16
BR112013014672A2 (pt) 2016-09-27

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Effective date: 20201206