BR112017012452B1 - Método de imageamento por ressonância magnética e dispositivo de ressonância magnética - Google Patents

Método de imageamento por ressonância magnética e dispositivo de ressonância magnética Download PDF

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Publication number
BR112017012452B1
BR112017012452B1 BR112017012452-1A BR112017012452A BR112017012452B1 BR 112017012452 B1 BR112017012452 B1 BR 112017012452B1 BR 112017012452 A BR112017012452 A BR 112017012452A BR 112017012452 B1 BR112017012452 B1 BR 112017012452B1
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BR
Brazil
Prior art keywords
magnetic field
unit
gradient
sequence
spin echo
Prior art date
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BR112017012452-1A
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English (en)
Portuguese (pt)
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BR112017012452A2 (pt
Inventor
Tim Nielsen
Original Assignee
Koninklijke Philips N.V.
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Publication date
Application filed by Koninklijke Philips N.V. filed Critical Koninklijke Philips N.V.
Publication of BR112017012452A2 publication Critical patent/BR112017012452A2/pt
Publication of BR112017012452B1 publication Critical patent/BR112017012452B1/pt

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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
    • G01R33/5613—Generating steady state signals, e.g. low flip angle sequences [FLASH]
    • 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
    • G01R33/50—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
    • G01R33/565—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)
  • Health & Medical Sciences (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Radiology & Medical Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
BR112017012452-1A 2014-12-15 2015-12-11 Método de imageamento por ressonância magnética e dispositivo de ressonância magnética BR112017012452B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP14197935 2014-12-15
EP14197935.1 2014-12-15
PCT/EP2015/079333 WO2016096623A1 (en) 2014-12-15 2015-12-11 Spin echo mr imaging

Publications (2)

Publication Number Publication Date
BR112017012452A2 BR112017012452A2 (pt) 2018-02-20
BR112017012452B1 true BR112017012452B1 (pt) 2022-03-15

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Family Applications (1)

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BR112017012452-1A BR112017012452B1 (pt) 2014-12-15 2015-12-11 Método de imageamento por ressonância magnética e dispositivo de ressonância magnética

Country Status (7)

Country Link
US (1) US11137466B2 (enExample)
EP (1) EP3234624B1 (enExample)
JP (1) JP6416413B2 (enExample)
CN (1) CN107548464B (enExample)
BR (1) BR112017012452B1 (enExample)
RU (1) RU2702843C2 (enExample)
WO (1) WO2016096623A1 (enExample)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013205528B3 (de) * 2013-03-27 2014-08-28 Universitätsklinikum Freiburg Verfahren der Magnetresonanz mit Anregung durch einen prewinding pulse
EP3540453A1 (en) * 2018-03-13 2019-09-18 Koninklijke Philips N.V. Mr imaging with spiral acquisition
CN108982567A (zh) * 2018-06-04 2018-12-11 中国科学院电工研究所无锡分所 一种核磁共振岩心自旋回波成像方法
EP3715896B1 (en) * 2019-03-27 2023-02-15 Siemens Healthcare GmbH Minimization of signal losses in multi-echo imaging
CN111352054B (zh) * 2020-03-31 2020-10-13 浙江大学 一种振荡梯度准备的3d梯度自旋回波成像方法及设备
CN115561689A (zh) * 2021-07-02 2023-01-03 西门子医疗有限公司 具有第一材料和第二材料的对象的磁共振成像

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EP0567194A3 (en) * 1992-04-24 1994-05-18 Philips Electronics Nv Method and apparatus for rapid spin echo magnetic resonance imaging
RU2063702C1 (ru) * 1992-07-20 1996-07-20 Леонид Аврамович Тютин Способ магнитно-резонансной томографии и устройство для его осуществления
JPH09506A (ja) * 1995-06-21 1997-01-07 Toshiba Corp 磁気共鳴イメージング装置
JP3688773B2 (ja) * 1995-10-31 2005-08-31 株式会社東芝 Ｍｒｉ装置
JPH09285457A (ja) * 1996-04-25 1997-11-04 Toshiba Corp 磁気共鳴イメージング装置
US5825184A (en) * 1996-04-26 1998-10-20 Picker International, Inc. Ultra-fast imaging technique using k-space segmentation with minimum phase and amplitude errors
DE19860488C1 (de) * 1998-12-28 2000-10-26 Siemens Ag Impulssequenz für ein Kernspintomographiegerät
US6239597B1 (en) * 1999-10-14 2001-05-29 General Electric Company Method and apparatus for rapid T2 weighted MR image acquisition
JP3796446B2 (ja) * 2002-01-23 2006-07-12 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
DE10250922B4 (de) * 2002-10-31 2008-01-31 Siemens Ag Verfahren zur Ermittlung des ADC-Koeffizienten in der Diffusionsgewichteten Magnetresonanz-Bildgebung bei Verwendung von Steady-State-Sequenzen
US7834625B2 (en) 2008-01-03 2010-11-16 Allegheny-Singer Research Institute Split-echo with fractional temporal-interpolation
JP5300279B2 (ja) * 2008-01-31 2013-09-25 株式会社東芝 磁気共鳴イメージング装置
DE102008044828B3 (de) * 2008-08-28 2010-04-15 Siemens Aktiengesellschaft Verwendung eines Magnetresonanz-Sequenzmodells zur formalen Beschreibung einer Messsequenz
EP2239592A1 (en) * 2009-04-08 2010-10-13 Universitätsklinikum Freiburg Simultaneous excitation and acquisition of signal from multiple slices in the RARE sequence (multiplex RARE)
JP2011229673A (ja) * 2010-04-27 2011-11-17 Ge Medical Systems Global Technology Co Llc 磁気共鳴イメージング装置
WO2011161566A1 (en) * 2010-06-24 2011-12-29 Koninklijke Philips Electronics N.V. Dynamic contrast enhanced mr imaging with compressed sensing reconstruction
EP2500742A1 (en) * 2011-03-17 2012-09-19 Koninklijke Philips Electronics N.V. Restriction of the imaging region for MRI in an inhomogeneous magnetic field
US8497680B2 (en) * 2011-03-24 2013-07-30 University Hospital Of Basel Magnetic resonance method for quantification of molecular diffusion using double echo steady state sequences
DE102011082266B4 (de) * 2011-09-07 2015-08-27 Siemens Aktiengesellschaft Abbilden eines Teilbereichs am Rand des Gesichtsfeldes eines Untersuchungsobjekts in einer Magnetresonanzanlage
JP5917077B2 (ja) * 2011-10-13 2016-05-11 株式会社東芝 磁気共鳴イメージング装置
KR101343029B1 (ko) * 2011-11-08 2013-12-18 한국과학기술원 자기 공명 영상 장치 및 그 제어 방법
JP6275148B2 (ja) * 2012-10-02 2018-02-07 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． 金属耐性ｍｒ撮像基準スキャン
US9551770B1 (en) * 2013-01-24 2017-01-24 Abbas Nasiraei Moghaddam Functional magnetic resonance imaging by spatially modulating steady-state signal in steady-state free precession
RU2015135815A (ru) * 2013-01-25 2017-03-02 Конинклейке Филипс Н.В. Устойчивая к металлам mr визуализация
DE102013201616B3 (de) 2013-01-31 2014-07-17 Siemens Aktiengesellschaft TSE-basierte, gegen lokale B0-Feldvariationen unempfindliche MR-Mulitschicht-Anregung
DE102013205208B4 (de) * 2013-03-25 2015-02-12 Siemens Aktiengesellschaft Multiecho-Magnetresonanz-Messsequenz mit erhöhter Auflösung
CN104166111B (zh) 2013-05-28 2015-07-01 上海联影医疗科技有限公司 磁共振图像采集与重建方法及装置

Also Published As

Publication number Publication date
US11137466B2 (en) 2021-10-05
RU2017125179A3 (enExample) 2019-04-24
WO2016096623A1 (en) 2016-06-23
CN107548464A (zh) 2018-01-05
JP6416413B2 (ja) 2018-10-31
EP3234624A1 (en) 2017-10-25
JP2017537763A (ja) 2017-12-21
BR112017012452A2 (pt) 2018-02-20
RU2017125179A (ru) 2019-01-17
US20170350954A1 (en) 2017-12-07
EP3234624B1 (en) 2018-11-07
RU2702843C2 (ru) 2019-10-11
CN107548464B (zh) 2024-11-26

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B06U Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]
B350 Update of information on the portal [chapter 15.35 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 11/12/2015, OBSERVADAS AS CONDICOES LEGAIS.

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