CN107407714B - 用于根据b0图和b1图来计算导出值的mri方法 - Google Patents

用于根据b0图和b1图来计算导出值的mri方法 Download PDF

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CN107407714B
CN107407714B CN201680017078.1A CN201680017078A CN107407714B CN 107407714 B CN107407714 B CN 107407714B CN 201680017078 A CN201680017078 A CN 201680017078A CN 107407714 B CN107407714 B CN 107407714B
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magnetic resonance
map
pulse sequence
resonance imaging
sequence data
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CN107407714A (zh
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U·卡切尔
J·J·迈内克
H·埃格斯
P·博尔纳特
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Koninklijke Philips NV
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    • 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]
    • G01R33/443—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
    • G01R33/24—Arrangements or instruments for measuring magnetic variables involving magnetic resonance for measuring direction or magnitude of magnetic fields or magnetic flux
    • G01R33/246—Spatial mapping of the RF magnetic field B1
    • 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
    • G01R33/4816—NMR imaging of samples with ultrashort relaxation times such as solid samples, e.g. MRI using ultrashort TE [UTE], single point imaging, constant time 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
    • G01R33/4818—MR characterised by data acquisition along a specific k-space trajectory or by the temporal order of k-space coverage, e.g. centric or segmented coverage of k-space
    • G01R33/4824—MR characterised by data acquisition along a specific k-space trajectory or by the temporal order of k-space coverage, e.g. centric or segmented coverage of k-space using a non-Cartesian trajectory
    • 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
    • G01R33/4828—Resolving the MR signals of different chemical species, e.g. water-fat 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
    • 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
    • G01R33/5608—Data processing and visualization specially adapted for MR, e.g. for feature analysis and pattern recognition on the basis of measured MR data, segmentation of measured MR data, edge contour detection on the basis of measured MR data, for enhancing measured MR data in terms of signal-to-noise ratio by means of noise filtering or apodization, for enhancing measured MR data in terms of resolution by means for deblurring, windowing, zero filling, or generation of gray-scaled images, colour-coded images or images displaying vectors instead of pixels
    • 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
    • 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

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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)
  • Engineering & Computer Science (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Signal Processing (AREA)
  • General Health & Medical Sciences (AREA)
  • Radiology & Medical Imaging (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Artificial Intelligence (AREA)
  • Medical Informatics (AREA)
  • Pathology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Biophysics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
CN201680017078.1A 2015-01-21 2016-01-21 用于根据b0图和b1图来计算导出值的mri方法 Expired - Fee Related CN107407714B (zh)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
EP15151936 2015-01-21
EP15151936.0 2015-01-21
US201562138492P 2015-03-26 2015-03-26
US62/138,492 2015-03-26
PCT/EP2016/051199 WO2016116545A1 (en) 2015-01-21 2016-01-21 Mri method for calculating derived values from b0 and b1 maps

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CN107407714A CN107407714A (zh) 2017-11-28
CN107407714B true CN107407714B (zh) 2020-04-14

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US (1) US10330757B2 (enExample)
EP (1) EP3248023A1 (enExample)
JP (1) JP6640859B2 (enExample)
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WO (1) WO2016116545A1 (enExample)

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EP3227701A1 (en) * 2014-12-04 2017-10-11 Koninklijke Philips N.V. Dixon magnetic resonance imaging using prior knowledge
US10197657B2 (en) * 2015-08-12 2019-02-05 The Regents Of The University Of California Methods and systems for generating a conductivity map of an in vivo tissue
EP3282272A1 (en) * 2016-08-08 2018-02-14 Medizinische Universität Wien Phase offset determination in magnetic resonance imaging
DE102016115216A1 (de) * 2016-08-16 2018-02-22 Mr Comp Gmbh Vorrichtung und Verfahren zur Prüfung der MR-Sicherheit von Implantaten
JP6615079B2 (ja) * 2016-09-29 2019-12-04 株式会社日立製作所 核磁気共鳴を利用した電気特性測定装置及び方法
WO2018065233A1 (en) * 2016-10-06 2018-04-12 Koninklijke Philips N.V. Direct measurement of the b0-off-resonance field during magnetic resonance fingerprinting
WO2018108643A1 (en) * 2016-12-15 2018-06-21 Koninklijke Philips N.V. Multi-state magnetic resonance fingerprinting
KR20180085976A (ko) * 2017-01-20 2018-07-30 삼성전자주식회사 자기 공명 영상 장치 및 자기 공명 영상 장치의 제어 방법
EP3378426A1 (en) * 2017-03-20 2018-09-26 Koninklijke Philips N.V. Locating ablated tissues using electric properties tomography
US10888246B2 (en) * 2017-07-18 2021-01-12 Synthetic Mr Ab Method and system for generating a contrast enhancement map
EP3336567B1 (de) * 2017-07-24 2020-11-04 Siemens Healthcare GmbH Bestimmung von phasenverteilungen in mr-bildgebungsverfahren
DE102017215002A1 (de) * 2017-08-28 2019-02-28 Siemens Healthcare Gmbh Verfahren zur Aufnahme einer B0-Karte mit einer Magnetresonanzeinrichtung, Magnetresonanzeinrichtung, Computerprogramm und elektronisch lesbarer Datenträger
EP3511725A1 (en) * 2018-01-11 2019-07-17 Koninklijke Philips N.V. Dual resolution dixon magnetic resonance imaging
EP3521849A1 (en) * 2018-02-02 2019-08-07 Koninklijke Philips N.V. Mri with fat/water separation
EP3550319A1 (en) * 2018-04-05 2019-10-09 Koninklijke Philips N.V. Emulation mode for mri
EP3543724A1 (en) * 2018-03-20 2019-09-25 Koninklijke Philips N.V. (3-n)-dimensional determination of electric conductivity
EP3581090A1 (en) * 2018-06-11 2019-12-18 Koninklijke Philips N.V. Electrical properties tomography mapping of conductivity changes
EP3754357A1 (en) * 2019-06-20 2020-12-23 Koninklijke Philips N.V. Magnetic resonance electric properties tomography without contrast agent
EP3885780A1 (en) * 2020-03-26 2021-09-29 Koninklijke Philips N.V. Magnetic resonance imaging of breast micro-calcifications
EP3893013A1 (en) * 2020-04-06 2021-10-13 Koninklijke Philips N.V. Mr imaging for radiation therapy planning
FR3115884B1 (fr) * 2020-10-29 2022-10-28 Olea Medical Procédé de post-traitement d’un échantillonnage d’une séquence d’acquisition WASAB1
US20230106452A1 (en) * 2021-10-04 2023-04-06 Calimetrix LLC Phantom apparatus and methods therefor
CN117783976B (zh) * 2023-11-17 2024-10-22 北京大学深圳研究生院 一种应用于超高场可重构式磁共振成像控制谱仪

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JPH08196522A (ja) * 1995-01-25 1996-08-06 Toshiba Corp 磁気共鳴イメージング装置
CN101903790A (zh) * 2007-12-21 2010-12-01 皇家飞利浦电子股份有限公司 增加体线圈中的有效b0和b1均匀性的无源匀场片
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CN101903790A (zh) * 2007-12-21 2010-12-01 皇家飞利浦电子股份有限公司 增加体线圈中的有效b0和b1均匀性的无源匀场片
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EP3248023A1 (en) 2017-11-29
JP2018506337A (ja) 2018-03-08
WO2016116545A1 (en) 2016-07-28
US20180011158A1 (en) 2018-01-11
US10330757B2 (en) 2019-06-25
CN107407714A (zh) 2017-11-28
JP6640859B2 (ja) 2020-02-05

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