CN100333690C - 核磁共振成像方法及装置 - Google Patents

核磁共振成像方法及装置 Download PDF

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CN100333690C
CN100333690C CNB038031485A CN03803148A CN100333690C CN 100333690 C CN100333690 C CN 100333690C CN B038031485 A CNB038031485 A CN B038031485A CN 03803148 A CN03803148 A CN 03803148A CN 100333690 C CN100333690 C CN 100333690C
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echo
phase
magnetic field
gradient magnetic
navigation
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CN1625366A (zh
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熊井秀树
川崎真司
竹内博幸
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Hitachi Ltd
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Hitachi Medical Corp
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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
    • G01R33/54—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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
    • A61B5/7235—Details of waveform analysis
    • A61B5/7253—Details of waveform analysis characterised by using transforms
    • A61B5/7257—Details of waveform analysis characterised by using transforms using Fourier transforms
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
    • A61B5/7271—Specific aspects of physiological measurement analysis
    • A61B5/7285—Specific aspects of physiological measurement analysis for synchronizing or triggering a physiological measurement or image acquisition with a physiological event or waveform, e.g. an ECG signal
    • A61B5/7289—Retrospective gating, i.e. associating measured signals or images with a physiological event after the actual measurement or image acquisition, e.g. by simultaneously recording an additional physiological signal during the measurement or image acquisition
    • 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
    • G01R33/563—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution of moving material, e.g. flow contrast angiography
    • G01R33/56341—Diffusion 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
    • G01R33/565—Correction of image distortions, e.g. due to magnetic field inhomogeneities
    • G01R33/56509—Correction of image distortions, e.g. due to magnetic field inhomogeneities due to motion, displacement or flow, e.g. gradient moment nulling
    • 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
    • G01R33/567—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution gated by physiological signals, i.e. synchronization of acquired MR data with periodical motion of an object of interest, e.g. monitoring or triggering system for cardiac or respiratory gating
    • G01R33/5676—Gating or triggering based on an MR signal, e.g. involving one or more navigator echoes for motion monitoring and correction

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  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Signal Processing (AREA)
  • General Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • General Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Molecular Biology (AREA)
  • Biophysics (AREA)
  • Medical Informatics (AREA)
  • Biomedical Technology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Pathology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Artificial Intelligence (AREA)
  • Psychiatry (AREA)
  • Physiology (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Vascular Medicine (AREA)
  • Mathematical Physics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
CNB038031485A 2002-02-01 2003-01-31 核磁共振成像方法及装置 Expired - Fee Related CN100333690C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002025910A JP4141147B2 (ja) 2002-02-01 2002-02-01 磁気共鳴イメージング装置
JP25910/2002 2002-02-01

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CN1625366A CN1625366A (zh) 2005-06-08
CN100333690C true CN100333690C (zh) 2007-08-29

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US (1) US7170289B2 (enExample)
EP (1) EP1472978B1 (enExample)
JP (1) JP4141147B2 (enExample)
CN (1) CN100333690C (enExample)
WO (1) WO2003063702A1 (enExample)

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US8270077B2 (en) * 2004-01-16 2012-09-18 Carl Zeiss Smt Gmbh Polarization-modulating optical element
US8279524B2 (en) * 2004-01-16 2012-10-02 Carl Zeiss Smt Gmbh Polarization-modulating optical element
DE102005053269B3 (de) * 2005-11-08 2007-04-12 Siemens Ag Verfahren und Vorrichtung zur Ermittlung eines diffusionsgewichteten Bildes
JP4134187B2 (ja) * 2006-03-23 2008-08-13 ザイオソフト株式会社 拡散強調画像処理装置及び画像処理プログラム
CN101109791B (zh) * 2006-07-19 2010-09-29 西门子（中国）有限公司 回波平面成像序列的纠正方法
CN101143093B (zh) * 2006-09-11 2010-09-29 西门子（中国）有限公司 磁共振扩散成像方法
JP2008154887A (ja) * 2006-12-26 2008-07-10 Ge Medical Systems Global Technology Co Llc Ｍｒｉ装置
US8971992B2 (en) * 2007-05-07 2015-03-03 Kabushiki Kaisha Toshiba Magnetic resonance imaging apparatus and control method thereof
JP2009082609A (ja) * 2007-10-02 2009-04-23 Koninkl Philips Electronics Nv 磁気共鳴イメージング装置、イメージング方法及びイメージングプログラム
JP5377219B2 (ja) * 2008-12-16 2013-12-25 株式会社東芝 磁気共鳴画像診断装置および磁気共鳴画像撮像方法
CN102232849B (zh) * 2010-04-30 2014-09-03 西门子(深圳)磁共振有限公司 一种动态频率漂移校正方法
DE102011006230B4 (de) 2011-03-28 2013-01-24 Siemens Aktiengesellschaft Pixelweise Korrektur einer Phaseninformation in MR-Bildern unter Verwendung eines Navigatorsignals
JP5389103B2 (ja) * 2011-06-06 2014-01-15 株式会社東芝 磁気共鳴イメージング装置
KR101845222B1 (ko) * 2011-11-09 2018-04-05 삼성전자주식회사 고차 확산자기공명 영상의 인공물 저감 장치 및 방법
CN103505208B (zh) * 2012-06-21 2015-07-29 西门子(深圳)磁共振有限公司 一种磁共振成像方法
CN104379058B (zh) * 2012-06-28 2018-12-21 杜克大学 用于高分辨率mri合并复用灵敏度编码（muse）的多重拍摄扫描协议
EP2932291B1 (en) * 2012-12-12 2019-11-27 Koninklijke Philips N.V. Motion detection and correction method for magnetic resonance diffusion weighted imaging (dwi)
USD745875S1 (en) * 2012-12-13 2015-12-22 Symantec Corporation Display device with graphical user interface
JP2014210099A (ja) * 2013-04-19 2014-11-13 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 磁気共鳴装置およびプログラム
JP6461464B2 (ja) * 2013-10-31 2019-01-30 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 磁気共鳴装置およびプログラム
WO2016001836A2 (en) * 2014-07-03 2016-01-07 Koninklijke Philips N.V. Multi-shot magnetic-resonance (mr) imaging system and method of operation thereof
CN104323777B (zh) * 2014-10-30 2016-06-29 西安交通大学医学院第一附属医院 一种扩散磁共振成像运动伪影的消除方法
CN106154196B (zh) * 2015-03-31 2021-06-22 西门子(深圳)磁共振有限公司 磁共振成像系统的体线圈的检测方法和设备
US11105875B2 (en) 2016-09-12 2021-08-31 Aspect Imaging Ltd. Simultaneously frequency- and phase-shifted NMR signals and improved NMR signal analysis
DE102016218713B4 (de) * 2016-09-28 2019-02-07 Siemens Healthcare Gmbh Diffusionsgewichtete Magnetresonanz-Messung
US10809341B1 (en) * 2019-04-19 2020-10-20 Canon Medical Systems Corporation Readout-segmented echo planar imaging with k-space averaging
CN115727872B (zh) * 2022-11-07 2024-08-02 北京自动化控制设备研究所 Epr磁强计测量轴稳定性的测试评价方法及磁强计

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CN1216242A (zh) * 1997-10-17 1999-05-12 日立医药株式会社 磁共振成像方法及实施该方法的装置
JPH11128202A (ja) * 1997-10-27 1999-05-18 Hitachi Medical Corp 拡散ｍｒ撮影方法
JP2001276017A (ja) * 2000-03-31 2001-10-09 Ge Medical Systems Global Technology Co Llc ナビゲータエコーによる情報を用いた磁気共鳴画像アーティファクトの修正
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JPH11128202A (ja) * 1997-10-27 1999-05-18 Hitachi Medical Corp 拡散ｍｒ撮影方法
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Also Published As

Publication number Publication date
EP1472978A4 (en) 2010-04-07
US7170289B2 (en) 2007-01-30
WO2003063702A1 (en) 2003-08-07
EP1472978A1 (en) 2004-11-03
CN1625366A (zh) 2005-06-08
JP4141147B2 (ja) 2008-08-27
JP2003225223A (ja) 2003-08-12
EP1472978B1 (en) 2013-01-02
US20050218893A1 (en) 2005-10-06

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