KR101721730B1 - 자기 공명 장치를 이용한 b0 필드 맵의 결정 방법 및 자기 공명 장치 - Google Patents

자기 공명 장치를 이용한 b0 필드 맵의 결정 방법 및 자기 공명 장치 Download PDF

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KR101721730B1
KR101721730B1 KR1020140085419A KR20140085419A KR101721730B1 KR 101721730 B1 KR101721730 B1 KR 101721730B1 KR 1020140085419 A KR1020140085419 A KR 1020140085419A KR 20140085419 A KR20140085419 A KR 20140085419A KR 101721730 B1 KR101721730 B1 KR 101721730B1
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phase
magnetic resonance
different
field map
field
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Korean (ko)
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KR20150007968A (ko
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한스-페터 파우츠
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지멘스 악티엔게젤샤프트
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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
    • G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/443—Assessment of an electric or a magnetic field, e.g. spatial mapping, determination of a B0 drift or dosimetry
    • 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
    • G01R33/44—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
    • G01R33/56563—Correction of image distortions, e.g. due to magnetic field inhomogeneities caused by a distortion of the main magnetic field B0, e.g. temporal variation of the magnitude or spatial inhomogeneity of B0

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  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (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)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
KR1020140085419A 2013-07-11 2014-07-08 자기 공명 장치를 이용한 b0 필드 맵의 결정 방법 및 자기 공명 장치 Expired - Fee Related KR101721730B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013213591.2A DE102013213591B4 (de) 2013-07-11 2013-07-11 Ermittlung einer B0-Feldkarte mittels Anregungen mit unterschiedlichen Anregungsfeldern
DE102013213591.2 2013-07-11

Publications (2)

Publication Number Publication Date
KR20150007968A KR20150007968A (ko) 2015-01-21
KR101721730B1 true KR101721730B1 (ko) 2017-04-10

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KR1020140085419A Expired - Fee Related KR101721730B1 (ko) 2013-07-11 2014-07-08 자기 공명 장치를 이용한 b0 필드 맵의 결정 방법 및 자기 공명 장치

Country Status (5)

Country Link
US (1) US9897674B2 (enExample)
JP (1) JP6178760B2 (enExample)
KR (1) KR101721730B1 (enExample)
CN (1) CN104280707B (enExample)
DE (1) DE102013213591B4 (enExample)

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US8970217B1 (en) 2010-04-14 2015-03-03 Hypres, Inc. System and method for noise reduction in magnetic resonance imaging
DE102013213592B4 (de) * 2013-07-11 2016-06-09 Siemens Healthcare Gmbh Verfahren zur Ermittlung einer B1-Phasenkarte und Magnetresonanzeinrichtung
DE102013213591B4 (de) * 2013-07-11 2015-02-12 Siemens Aktiengesellschaft Ermittlung einer B0-Feldkarte mittels Anregungen mit unterschiedlichen Anregungsfeldern
US10571543B2 (en) * 2017-01-18 2020-02-25 Shanghai United Imaging Healthcare Co., Ltd Methods and apparatuses for phase unwrapping
EP3451008B1 (en) 2017-08-28 2020-02-19 Siemens Healthcare GmbH Magnetic field map determination in a mr system
CN109521383B (zh) * 2018-10-17 2019-08-30 浙江大学 一种基于频率稳定模块的磁共振cest成像序列及装置
CN109793518B (zh) * 2019-01-24 2022-08-26 奥泰医疗系统有限责任公司 一种磁共振b0场图测量方法
CN109839608B (zh) * 2019-03-15 2021-04-30 上海联影医疗科技股份有限公司 磁共振场图确定方法、装置、电子设备及存储介质
DE102020202830A1 (de) * 2020-03-05 2021-09-09 Siemens Healthcare Gmbh Magnetresonanztomograph und Verfahren zum Betrieb mit dynamischer B0-Kompensation
CN117252807B (zh) * 2023-07-25 2025-08-26 长春理工大学 一种基于机器视觉的传爆管参数特征检测方法

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US20040027127A1 (en) * 2000-08-22 2004-02-12 Mills Randell L 4 dimensinal magnetic resonance imaging
US20090256567A1 (en) * 2008-04-10 2009-10-15 Pelin Aksit Three-point method and system for fast and robust field mapping for epi geometric distortion correction

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US6400147B1 (en) * 1998-11-05 2002-06-04 Schlumberger Technology Corporation Downhole NMR tool having a programmable pulse sequencer
US7064547B1 (en) * 2004-06-21 2006-06-20 General Electric Company Method and apparatus of M/r imaging with coil calibration data acquisition
DE102005049229B3 (de) 2005-10-14 2007-05-03 Siemens Ag Verfahren zur Ermittlung von Flipwinkelverteilungen in einer Magnetresonanzanlage, Magnetresonanzanlage und Computerprogrammprodukt
US7898254B2 (en) * 2008-02-19 2011-03-01 Advanced Mri Technologies, Llc Arterial spin labeled, segmented, interleaved 3D GRASE MRI
DE102008014060B4 (de) * 2008-03-13 2010-06-17 Siemens Aktiengesellschaft Verfahren zur Bestimmung einer Phasenlage einer Magnetisierung und Magnetresonanzanlage
DE102010039693B4 (de) * 2010-08-24 2012-10-31 Siemens Aktiengesellschaft Phasensensitive Magnetresonanz-Bildgebung
US8934694B2 (en) * 2010-10-07 2015-01-13 Duke University Multi-dimensional iterative phase-cycled reconstruction for MRI images
DE102011081039A1 (de) 2011-08-16 2013-02-21 Siemens Aktiengesellschaft Lokalspulenanordnung mit integriertem Shimleiter
DE102011081508B3 (de) 2011-08-24 2013-02-28 Siemens Aktiengesellschaft Flusssensitive, frequenzunabhängige Anregung von Magnetresonanzsignalen
DE102013213592B4 (de) * 2013-07-11 2016-06-09 Siemens Healthcare Gmbh Verfahren zur Ermittlung einer B1-Phasenkarte und Magnetresonanzeinrichtung
DE102013213591B4 (de) * 2013-07-11 2015-02-12 Siemens Aktiengesellschaft Ermittlung einer B0-Feldkarte mittels Anregungen mit unterschiedlichen Anregungsfeldern
DE102013218636B3 (de) * 2013-09-17 2015-01-22 Siemens Aktiengesellschaft Verfahren zur Ermittlung einer B0-Feldkarte mit einer Magnetresonanzeinrichtung und Recheneinrichtung
DE102014201207B4 (de) * 2014-01-23 2018-11-08 Siemens Healthcare Gmbh Korrektur einer B0-Karte auf chemische Verschiebungen

Patent Citations (2)

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US20040027127A1 (en) * 2000-08-22 2004-02-12 Mills Randell L 4 dimensinal magnetic resonance imaging
US20090256567A1 (en) * 2008-04-10 2009-10-15 Pelin Aksit Three-point method and system for fast and robust field mapping for epi geometric distortion correction

Also Published As

Publication number Publication date
CN104280707A (zh) 2015-01-14
CN104280707B (zh) 2017-07-07
DE102013213591A1 (de) 2015-01-15
US20150015257A1 (en) 2015-01-15
JP6178760B2 (ja) 2017-08-09
JP2015016333A (ja) 2015-01-29
DE102013213591B4 (de) 2015-02-12
US9897674B2 (en) 2018-02-20
KR20150007968A (ko) 2015-01-21

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