DE69524290T2 - Verfahren und Apparat zur Bilderzeugung mittels magnetischer Resonanz - Google Patents

Verfahren und Apparat zur Bilderzeugung mittels magnetischer Resonanz

Info

Publication number
DE69524290T2
DE69524290T2 DE69524290T DE69524290T DE69524290T2 DE 69524290 T2 DE69524290 T2 DE 69524290T2 DE 69524290 T DE69524290 T DE 69524290T DE 69524290 T DE69524290 T DE 69524290T DE 69524290 T2 DE69524290 T2 DE 69524290T2
Authority
DE
Germany
Prior art keywords
magnetic resonance
resonance imaging
imaging method
magnetic
resonance
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
DE69524290T
Other languages
English (en)
Other versions
DE69524290D1 (de
Inventor
Satoru Kohno
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shimadzu Corp
Original Assignee
Shimadzu Corp
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 Shimadzu Corp filed Critical Shimadzu Corp
Publication of DE69524290D1 publication Critical patent/DE69524290D1/de
Application granted granted Critical
Publication of DE69524290T2 publication Critical patent/DE69524290T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves 
    • A61B5/055—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves  involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
    • 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]
    • 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]
    • G01R33/5618—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 both RF and gradient refocusing, e.g. GRASE
    • 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
DE69524290T 1994-05-31 1995-04-05 Verfahren und Apparat zur Bilderzeugung mittels magnetischer Resonanz Expired - Fee Related DE69524290T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6142551A JPH07323021A (ja) 1994-05-31 1994-05-31 Ｍｒイメージング装置

Publications (2)

Publication Number Publication Date
DE69524290D1 DE69524290D1 (de) 2002-01-17
DE69524290T2 true DE69524290T2 (de) 2002-05-23

Family

ID=15317984

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69524290T Expired - Fee Related DE69524290T2 (de) 1994-05-31 1995-04-05 Verfahren und Apparat zur Bilderzeugung mittels magnetischer Resonanz

Country Status (6)

Country Link
US (1) US5615676A (de)
EP (1) EP0685747B1 (de)
JP (1) JPH07323021A (de)
KR (1) KR100362452B1 (de)
CN (1) CN1085342C (de)
DE (1) DE69524290T2 (de)

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JP3516421B2 (ja) * 1995-07-27 2004-04-05 株式会社日立メディコ Ｍｒｉ装置
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JPH09234188A (ja) * 1996-02-29 1997-09-09 Shimadzu Corp Ｍｒイメージング装置
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US5749834A (en) * 1996-12-30 1998-05-12 General Electric Company Intersecting multislice MRI data acquistion method
DE19901171C2 (de) * 1999-01-14 2001-12-13 Axel Haase Verfahren und Vorrichtung zum Gewinnen von Daten für Magnetresonanz-Bildgebung
US6459922B1 (en) * 1999-03-30 2002-10-01 Toshiba America Mri, Inc. Post data-acquisition method for generating water/fat separated MR images having adjustable relaxation contrast
US6393449B1 (en) 1999-05-11 2002-05-21 The Ohio State University Research Foundation Arbitrary function generator
JP2001000415A (ja) * 1999-06-24 2001-01-09 Ge Yokogawa Medical Systems Ltd 勾配磁場印加方法および装置並びに磁気共鳴撮像装置
KR100367419B1 (ko) * 2000-01-25 2003-01-10 주식회사 메디슨 Ｋ공간을 공유함으로써 ＦＳＥ기법에 3-포인트 Ｄｉｘｏｎ기법을 적용한 방법
JP4822376B2 (ja) * 2000-12-27 2011-11-24 株式会社日立メディコ 磁気共鳴イメージング方法及び装置
DE10112879A1 (de) * 2001-03-15 2002-10-02 Forschungszentrum Juelich Gmbh Verfahren zur Untersuchung einer Probe mittels Erzeugung und Ermittlung von Echosignalen
JP3814157B2 (ja) * 2001-04-17 2006-08-23 ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー Ｍｒｉ装置
CN100414316C (zh) * 2001-11-26 2008-08-27 皇家飞利浦电子股份有限公司 能降低声学噪声的磁共振成像方法
US20040102692A1 (en) * 2002-11-27 2004-05-27 General Electric Company Magnetic resonance imaging system and methods for the detection of brain iron deposits
DE10326174B4 (de) * 2003-06-10 2008-11-27 Siemens Ag Verfahren zur Verhinderung des Doppeldeutigkeitsartefaktes in der Magnetresonanz-Tomographie-Bildgebung
DE10333746B4 (de) * 2003-07-23 2009-04-09 Forschungszentrum Jülich GmbH MRI-Verfahren mit keyhole-Technik
JP4434753B2 (ja) * 2004-01-13 2010-03-17 株式会社東芝 磁気共鳴イメージング装置および磁気共鳴イメージング収集データの処理方法
FR2873450B1 (fr) * 2004-07-26 2006-09-29 Gen Electric Procede d'acquisition d'une image par resonance magnetique nucleaire
JP4739767B2 (ja) * 2005-02-03 2011-08-03 ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー 磁気共鳴イメージング装置
JP5142979B2 (ja) * 2005-03-23 2013-02-13 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 緩和パラメータを空間的に分解して決定するための磁気共鳴方法
DE102006011253B4 (de) * 2006-03-10 2009-04-02 Siemens Ag Magnet-Resonanz-Bildgebung mit verbessertem Kontrast zwischen weißer und grauer Hirnsubstanz sowie CSF auf Basis einer Gradientenechosequenz
US7622920B2 (en) * 2006-07-06 2009-11-24 Kabushiki Kaisha Toshiba Magnetic resonance imaging apparatus capable of automatically determining RF coil positions
US7253627B1 (en) 2006-07-19 2007-08-07 Univ King Fahd Pet & Minerals Method for removing noise from nuclear magnetic resonance signals and images
WO2008135879A1 (en) * 2007-05-03 2008-11-13 Koninklijke Philips Electronics N.V. Accelerated t2-mapping in mri through undersampling and k-t reconstruction
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
CN101470178B (zh) * 2007-12-29 2013-06-05 西门子（中国）有限公司 一种抑制残余运动伪影的方法及装置
DE102009014498B4 (de) * 2009-03-23 2011-03-24 Siemens Aktiengesellschaft Verfahren, Magnetresonanzgerät und Computerprogramm zur Erstellung von Bildern mittels paralleler Akquisitionstechnik
CN103513202B (zh) * 2012-06-16 2016-04-27 上海联影医疗科技有限公司 一种磁共振成像中的dixon水脂分离方法
CN103576115B (zh) * 2012-08-06 2015-07-22 上海联影医疗科技有限公司 一种核磁共振图像梯度场变形校正方法
CN104062611B (zh) * 2013-03-22 2017-02-15 西门子(深圳)磁共振有限公司 一种磁共振系统的射频激发方法和装置
KR101475932B1 (ko) * 2013-04-01 2014-12-23 고려대학교 산학협력단 하이브리드 자기 공명 영상 처리 장치 및 방법
DE102015223658B4 (de) * 2015-11-30 2017-08-17 Siemens Healthcare Gmbh Verfahren zum Erfassen von Magnetresonanz-Signalen eines Untersuchungsobjekts
JP6809819B2 (ja) * 2016-06-20 2021-01-06 キヤノンメディカルシステムズ株式会社 磁気共鳴イメージング装置及び画像処理装置
CN106353706B (zh) * 2016-10-08 2019-07-23 上海东软医疗科技有限公司 磁共振成像序列相位校正方法及磁共振设备
CN107192929B (zh) * 2017-06-21 2023-11-03 贵州电网有限责任公司电力科学研究院 用于特高频监测系统校验的gis局放信号源系统及使用方法
CN107167751B (zh) * 2017-06-30 2019-08-02 上海联影医疗科技有限公司 一种磁共振射频发射场测量方法及磁共振系统
CN109507221B (zh) * 2018-12-03 2019-12-13 中国科学院生物物理研究所 一种多维核磁共振分子扩散耦合成像方法
CN110794351B (zh) * 2019-11-05 2021-11-16 国家纳米科学中心 一种双回波剪影磁共振成像方法及系统
CN113534030B (zh) * 2020-04-13 2023-03-21 上海联影医疗科技股份有限公司 磁共振成像的方法、装置、医疗设备及存储介质
CN113917378B (zh) * 2020-07-09 2023-06-27 上海联影医疗科技股份有限公司 磁共振成像方法和磁共振成像系统
US11366189B2 (en) * 2020-09-25 2022-06-21 Uih America, Inc. Systems and methods for magnetic resonance imaging
GB2614034A (en) * 2021-10-22 2023-06-28 Scient Magnetics Limited Method and apparatus for magnetic resonance imaging
CN115685032B (zh) * 2022-11-02 2023-06-23 佛山瑞加图医疗科技有限公司 一种幅条k空间下的快速自旋回波的校正方法及系统

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DE69418404T2 (de) * 1993-09-16 1999-11-11 Koninkl Philips Electronics Nv Korrektur der Polarität des Auslesegradienten in Bilderzeugung durch EPI und GRASE magnetische Resonanz

Also Published As

Publication number Publication date
EP0685747B1 (de) 2001-12-05
CN1120673A (zh) 1996-04-17
DE69524290D1 (de) 2002-01-17
US5615676A (en) 1997-04-01
KR950030988A (ko) 1995-12-18
CN1085342C (zh) 2002-05-22
JPH07323021A (ja) 1995-12-12
EP0685747A1 (de) 1995-12-06
KR100362452B1 (ko) 2003-02-05

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee