DE102013206026B3 - Optimierte Gradientenecho-Multiecho-Messsequenz - Google Patents

Optimierte Gradientenecho-Multiecho-Messsequenz Download PDF

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Publication number
DE102013206026B3
DE102013206026B3 DE201310206026 DE102013206026A DE102013206026B3 DE 102013206026 B3 DE102013206026 B3 DE 102013206026B3 DE 201310206026 DE201310206026 DE 201310206026 DE 102013206026 A DE102013206026 A DE 102013206026A DE 102013206026 B3 DE102013206026 B3 DE 102013206026B3
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gradient pulse
amplitude
readout
gradient
maximum
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German (de)
English (en)
Inventor
Alto Stemmer
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Siemens Healthineers Ag De
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Siemens AG
Siemens Corp
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Priority to DE201310206026 priority Critical patent/DE102013206026B3/de
Priority to CN201410128849.7A priority patent/CN104101852B/zh
Priority to KR1020140040651A priority patent/KR101625735B1/ko
Priority to US14/245,294 priority patent/US9581667B2/en
Priority to JP2014077759A priority patent/JP6278803B2/ja
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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]
    • G01R33/48—NMR imaging systems
    • G01R33/50—NMR imaging systems based on the determination of relaxation times, e.g. T1 measurement by IR sequences; T2 measurement by multiple-echo sequences
    • 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
    • G01R33/5615—Echo train techniques involving acquiring plural, differently encoded, echo signals after one RF excitation, e.g. using gradient refocusing in echo planar imaging [EPI], RF refocusing in rapid acquisition with relaxation enhancement [RARE] or using both RF and gradient refocusing in gradient and spin echo imaging [GRASE]
    • G01R33/5616—Echo train techniques involving acquiring plural, differently encoded, echo signals after one RF excitation, e.g. using gradient refocusing in echo planar imaging [EPI], RF refocusing in rapid acquisition with relaxation enhancement [RARE] or using both RF and gradient refocusing in gradient and spin echo imaging [GRASE] using gradient refocusing, e.g. EPI

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  • Physics & Mathematics (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)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
DE201310206026 2013-04-05 2013-04-05 Optimierte Gradientenecho-Multiecho-Messsequenz Active DE102013206026B3 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE201310206026 DE102013206026B3 (de) 2013-04-05 2013-04-05 Optimierte Gradientenecho-Multiecho-Messsequenz
CN201410128849.7A CN104101852B (zh) 2013-04-05 2014-04-01 用于执行多回波测量序列的方法和磁共振设备
KR1020140040651A KR101625735B1 (ko) 2013-04-05 2014-04-04 멀티 에코 측정 시퀀스를 구현하는 방법 및 자기 공명 시스템
US14/245,294 US9581667B2 (en) 2013-04-05 2014-04-04 Method and magnetic resonance system to implement a multi-echo measurement sequence
JP2014077759A JP6278803B2 (ja) 2013-04-05 2014-04-04 マルチエコー測定シーケンスの実行方法および磁気共鳴装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201310206026 DE102013206026B3 (de) 2013-04-05 2013-04-05 Optimierte Gradientenecho-Multiecho-Messsequenz

Publications (1)

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DE102013206026B3 true DE102013206026B3 (de) 2014-08-28

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US (1) US9581667B2 (enExample)
JP (1) JP6278803B2 (enExample)
KR (1) KR101625735B1 (enExample)
CN (1) CN104101852B (enExample)
DE (1) DE102013206026B3 (enExample)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014203890B4 (de) * 2014-03-04 2016-03-24 MRB Forschungszentrum für Magnet - Resonanz - Bayern e.V. Leise echoplanare Bildgebung mit segmentiertem k-Raum
CN105334321B (zh) * 2014-07-31 2017-07-18 西门子(深圳)磁共振有限公司 磁共振成像方法和系统
KR101844514B1 (ko) 2016-09-02 2018-04-02 삼성전자주식회사 자기 공명 영상 장치 및 자기 공명 영상 획득 방법
CN112014782B (zh) * 2020-08-06 2023-07-28 深圳先进技术研究院 磁共振成像方法、装置及计算机存储介质
WO2022027419A1 (zh) 2020-08-06 2022-02-10 深圳先进技术研究院 磁共振成像方法、装置及计算机存储介质
CN112965018B (zh) * 2021-03-16 2022-04-01 厦门大学 基于时空编码螺旋磁共振成像的多回波采样及重建方法
CN114325531B (zh) * 2021-12-31 2024-06-25 深圳市联影高端医疗装备创新研究院 磁共振系统延迟的校正方法、装置、计算机设备和介质
DE102023202188A1 (de) * 2023-03-10 2024-09-12 Siemens Healthineers Ag Verringerung von Wirbelstromeinflüssen bei MRT-Bildgebung

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120013336A1 (en) * 2009-03-31 2012-01-19 Max-Planck-Gesellschaft Zur Foerderung Der Wissenschaften E.V. Magnetic resonance imaging with improved imaging contrast
DE102011005649A1 (de) * 2011-03-16 2012-09-20 Siemens Aktiengesellschaft Pulssequenz, Verfahren zur Bestimmung des tatsächlichen Kippwinkels, Verfahren zur Justierung der Transmitterspannung, Magnetresonanzgerät, Computerprogrammprodukt und elektronisch lesbarer Datenträger

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19520203C1 (de) * 1995-06-01 1996-11-21 Siemens Ag Verfahren zur Vermeidung von Bildabschattungen bei Kernspintomographiegeräten, die mit Multiechosequenzen betrieben werden
JP3525007B2 (ja) * 1996-03-28 2004-05-10 株式会社日立メディコ 磁気共鳴イメージング装置
US5917323A (en) * 1997-07-01 1999-06-29 General Electric Company Correction of axial image signal fall off caused by Maxwell terms
US6157192A (en) * 1998-04-14 2000-12-05 Wisconsin Alumni Research Foundation Recovery of signal void arising from field inhomogeneities in echo planar imaging
JP3964110B2 (ja) 2000-08-11 2007-08-22 株式会社日立メディコ 磁気共鳴イメージング装置
DE10063676B4 (de) 2000-12-20 2006-08-17 Siemens Ag Multiecho-Bildgebungsverfahren
US7999543B2 (en) * 2005-03-23 2011-08-16 Koninklijke Philips Electronics N.V. MR method for spatially-resolved determination of relaxation parameters
DE102005046732B4 (de) 2005-04-18 2010-04-15 Siemens Ag Verbessertes Rekonstruktionsverfahren bei der Propellerbildgebung in der Magnetresonanztomographie
WO2007094174A1 (ja) 2006-02-13 2007-08-23 Hitachi Medical Corporation 磁気共鳴撮影装置および方法
DE102006058316B4 (de) * 2006-12-11 2010-10-14 Siemens Ag Verfahren zur Aufnahme von Bilddaten einer Gefäßwand und Magnet-Resonanz-Gerät hierzu
US7535222B2 (en) 2007-01-02 2009-05-19 The Board Of Trustees Of The Leland Stanford Junior University MRI data acquisition using propeller k-space data acquisition
CN101470180B (zh) 2007-12-29 2016-01-20 西门子（中国）有限公司 磁共振成像中失真校准的方法和装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120013336A1 (en) * 2009-03-31 2012-01-19 Max-Planck-Gesellschaft Zur Foerderung Der Wissenschaften E.V. Magnetic resonance imaging with improved imaging contrast
DE102011005649A1 (de) * 2011-03-16 2012-09-20 Siemens Aktiengesellschaft Pulssequenz, Verfahren zur Bestimmung des tatsächlichen Kippwinkels, Verfahren zur Justierung der Transmitterspannung, Magnetresonanzgerät, Computerprogrammprodukt und elektronisch lesbarer Datenträger

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
N.-K. Chen, A.M. Wyrwicz: Correction for EPI distortions using multi-echo gradient-echo imaging. In: Magn. Reson. Med., 41, 1999, S. 1206-1213. *

Also Published As

Publication number Publication date
JP2014200687A (ja) 2014-10-27
US9581667B2 (en) 2017-02-28
KR20140121363A (ko) 2014-10-15
US20140300356A1 (en) 2014-10-09
KR101625735B1 (ko) 2016-05-30
CN104101852A (zh) 2014-10-15
CN104101852B (zh) 2017-01-18
JP6278803B2 (ja) 2018-02-14

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Owner name: SIEMENS HEALTHCARE GMBH, DE

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