CN103733083B - 采集成像区域内受检者的磁共振数据的系统及操作方法 - Google Patents

采集成像区域内受检者的磁共振数据的系统及操作方法 Download PDF

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Publication number
CN103733083B
CN103733083B CN201280039731.6A CN201280039731A CN103733083B CN 103733083 B CN103733083 B CN 103733083B CN 201280039731 A CN201280039731 A CN 201280039731A CN 103733083 B CN103733083 B CN 103733083B
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radio frequency
magnetic resonance
imaging system
resonance imaging
input drive
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CN103733083A (zh
Inventor
H·H·霍曼
I·格雷斯林
U·卡切尔
T·R·福格特
O·H·德塞尔
S·A·塞茨
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Koninklijke Philips NV
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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
    • G01R33/32—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
    • 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
    • G01R33/288—Provisions within MR facilities for enhancing safety during MR, e.g. reduction of the specific absorption rate [SAR], detection of ferromagnetic objects in the scanner room
    • 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
    • G01R33/5612—Parallel RF transmission, i.e. RF pulse transmission using a plurality of independent transmission 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
    • G01R33/285—Invasive instruments, e.g. catheters or biopsy needles, specially adapted for tracking, guiding or visualization by NMR

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  • Physics & Mathematics (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)
  • High Energy & Nuclear Physics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
CN201280039731.6A 2011-08-17 2012-08-15 采集成像区域内受检者的磁共振数据的系统及操作方法 Active CN103733083B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201161524369P 2011-08-17 2011-08-17
US61/524,369 2011-08-17
PCT/IB2012/054163 WO2013024449A1 (en) 2011-08-17 2012-08-15 Reducing the radio-frequency transmit field in a predetermined volume during magnetic resonance imaging

Publications (2)

Publication Number Publication Date
CN103733083A CN103733083A (zh) 2014-04-16
CN103733083B true CN103733083B (zh) 2016-10-26

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US (1) US9702950B2 (enExample)
EP (1) EP2745133B1 (enExample)
JP (1) JP6169573B2 (enExample)
CN (1) CN103733083B (enExample)
MX (1) MX2014001716A (enExample)
WO (1) WO2013024449A1 (enExample)

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DE102013206055A1 (de) 2013-04-05 2014-10-09 Siemens Aktiengesellschaft Verfahren und Lokalspulensystem zur Erzeugung eines Magnetresonanz-Hochfrequenz-Feldes
DE102013206326B4 (de) * 2013-04-10 2014-11-20 Siemens Aktiengesellschaft Betriebsverfahren für eine Magnetresonanzanlage mit mehreren Sendeantennen
DE102014206011A1 (de) 2013-07-02 2015-01-08 Siemens Aktiengesellschaft Verfahren zur Aufnahme von Magnetresonanzdaten eines ein Metallobjekt enthaltenden Zielbereichs und Magnetresonanzeinrichtung
KR101666522B1 (ko) * 2013-09-25 2016-10-24 삼성전자 주식회사 자기공명영상 장치
US10353023B2 (en) * 2013-12-10 2019-07-16 Koninklijke Philips N.V. Calculating MRI RF coil sensitivities using interpolation into an enlarged field of view
US9891257B2 (en) * 2014-08-06 2018-02-13 Hand Held Products, Inc. Testing system and method using electromagnetic near field measurements
EP3207392B1 (en) * 2014-10-17 2020-09-02 Koninklijke Philips N.V. Spatially resolved metal detector
WO2016126288A2 (en) * 2015-02-06 2016-08-11 Ji Chen Use of absorption material to reduce radio frequency-induced heating in external fixation devices
US11266444B2 (en) 2015-02-06 2022-03-08 University Of Houston System External fixation device with absorption material for reducing radiofrequency induced heat transfer and method thereof
CN106175765B (zh) * 2015-04-29 2021-02-09 Ge医疗系统环球技术有限公司 磁共振成像系统及方法
US10672520B1 (en) * 2016-03-02 2020-06-02 AltaSim Technologies, LLC Precision medicine approach to improving patient safety and access to MRI
WO2017178796A1 (en) * 2016-04-13 2017-10-19 King's College London Parallel transmit rf power control for nmr imaging of a subject and invasive conductive objects
CN108627783B (zh) 2017-03-23 2022-01-14 通用电气公司 射频线圈阵列及磁共振成像发射阵列
US10866118B2 (en) 2018-06-18 2020-12-15 Allegro Microsystems, Llc High resolution magnetic field sensors
US10578679B2 (en) * 2018-06-18 2020-03-03 Allegro Microsystems, Llc Magnetic field sensors having virtual signals
US10908229B2 (en) 2018-06-18 2021-02-02 Allegro Microsystems, Llc Regulation of coefficients used in magnetic field sensor virtual signal generation
US10598739B2 (en) * 2018-06-18 2020-03-24 Allegro Microsystems, Llc Magnetic field sensors having virtual signals
EP3591418A1 (en) * 2018-07-03 2020-01-08 Koninklijke Philips N.V. Mri method for b0-mapping
CN112345989B (zh) * 2020-11-18 2024-05-28 中国科学院电工研究所 一种肿瘤组织磁特性成像方法
US11762043B2 (en) 2021-03-11 2023-09-19 Allegro Microsystems, Llc High resolution magnetic field sensors

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CN101438959A (zh) * 2007-11-22 2009-05-27 株式会社东芝 磁共振成像装置以及rf线圈
US20110156704A1 (en) * 2008-09-17 2011-06-30 Koninklijke Philips Electronics N.V. B1-mapping and b1l-shimming for mri
US20100237869A1 (en) * 2009-03-20 2010-09-23 Case Western Reserve University Controlling Multi-Channel Transmitter Effects on Specific Absorption Rate
CN101856228A (zh) * 2009-04-03 2010-10-13 株式会社东芝 磁共振成像装置
CN102100555A (zh) * 2009-12-17 2011-06-22 株式会社东芝 磁共振成像装置及磁共振成像方法

Also Published As

Publication number Publication date
JP6169573B2 (ja) 2017-07-26
US9702950B2 (en) 2017-07-11
MX2014001716A (es) 2014-03-21
EP2745133A1 (en) 2014-06-25
CN103733083A (zh) 2014-04-16
JP2014525812A (ja) 2014-10-02
WO2013024449A1 (en) 2013-02-21
US20140210472A1 (en) 2014-07-31
EP2745133B1 (en) 2022-03-09

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