AU2020264065A1 - A method of performing diffusion weighted magnetic resonance measurements - Google Patents

A method of performing diffusion weighted magnetic resonance measurements Download PDF

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Publication number
AU2020264065A1
AU2020264065A1 AU2020264065A AU2020264065A AU2020264065A1 AU 2020264065 A1 AU2020264065 A1 AU 2020264065A1 AU 2020264065 A AU2020264065 A AU 2020264065A AU 2020264065 A AU2020264065 A AU 2020264065A AU 2020264065 A1 AU2020264065 A1 AU 2020264065A1
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AU
Australia
Prior art keywords
encoding
along
encoding block
diffusion
magnetic field
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Pending
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AU2020264065A
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English (en)
Inventor
Samo LASIC
Markus Nilsson
Filip SZCZEPANKIEWICZ
Irvin TEH
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Random Walk Imaging AB
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Random Walk Imaging AB
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Publication of AU2020264065A1 publication Critical patent/AU2020264065A1/en
Assigned to RANDOM WALK IMAGING AB reassignment RANDOM WALK IMAGING AB Request for Assignment Assignors: CR DEVELOPMENT AB
Pending legal-status Critical Current

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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
    • G01R33/563—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
    • 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
    • G01R33/565—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
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10072—Tomographic images
    • G06T2207/10088—Magnetic resonance imaging [MRI]
    • G06T2207/10092—Diffusion tensor magnetic resonance imaging [DTI]

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • General Health & Medical Sciences (AREA)
  • Radiology & Medical Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Signal Processing (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Vascular Medicine (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)
AU2020264065A 2019-04-26 2020-04-24 A method of performing diffusion weighted magnetic resonance measurements Pending AU2020264065A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE1950507-2 2019-04-26
SE1950507A SE543292C2 (en) 2019-04-26 2019-04-26 A method of performing diffusion weighted magnetic resonance measurements
PCT/SE2020/050414 WO2020218966A1 (en) 2019-04-26 2020-04-24 A method of performing diffusion weighted magnetic resonance measurements

Publications (1)

Publication Number Publication Date
AU2020264065A1 true AU2020264065A1 (en) 2021-11-25

Family

ID=72941152

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2020264065A Pending AU2020264065A1 (en) 2019-04-26 2020-04-24 A method of performing diffusion weighted magnetic resonance measurements

Country Status (10)

Country Link
US (2) US11747423B2 (enExample)
EP (1) EP3959531B1 (enExample)
JP (1) JP7500608B2 (enExample)
KR (1) KR102857970B1 (enExample)
CN (1) CN113811783B (enExample)
AU (1) AU2020264065A1 (enExample)
BR (1) BR112021021379A8 (enExample)
CA (1) CA3138172A1 (enExample)
SE (1) SE543292C2 (enExample)
WO (1) WO2020218966A1 (enExample)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE543292C2 (en) * 2019-04-26 2020-11-17 Cr Dev Ab A method of performing diffusion weighted magnetic resonance measurements
DE102020205692A1 (de) * 2020-05-06 2021-11-11 Siemens Healthcare Gmbh Verfahren zur Diffusionsbildgebung mit einer Magnetresonanzeinrichtung, Magnetresonanzeinrichtung, Computerprogramm und elektronisch lesbarer Datenträger
US12444526B2 (en) * 2023-03-31 2025-10-14 The University Of New Brunswick Methods of dynamic mechanical analysis using nuclear magnetic resonance

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6078176A (en) * 1996-11-08 2000-06-20 General Electric Company Fast spin echo pulse sequence for diffusion weighted imaging
AU780940B2 (en) * 1999-05-21 2005-04-28 Government Of The United States Of America, As Represented By The Secretary Of The Department Of Health And Human Services, The Determination of an empirical statistical distribution of the diffusion tensor in MRI
DE102009019895B4 (de) * 2009-05-04 2011-05-12 Siemens Aktiengesellschaft Verfahren und Magnetresonanzanlage zur diffusionsgewichteten Aufnahme von MR-Signalen
US8760163B2 (en) * 2011-05-10 2014-06-24 Isis Innovation Limited Diffusion-weighted magnetic resonance imaging using 3D mosaic segmentation and 3D navigator phase correction
WO2013025487A1 (en) * 2011-08-12 2013-02-21 The United States Of America, As Represented By The Secretary, Dpt Of Health And Human Services Spin echo sequences for diffusion weighted imaging of moving media
US9687172B2 (en) * 2012-01-24 2017-06-27 National Institute of Health (NIH), The United States of America, U.S. Dept. of Health and Human Services (DHHS) System for motion corrected MR diffusion imaging
CA2936624A1 (en) 2014-02-10 2015-08-13 Cr Development Ab Method for quantifying isotropic diffusion and/or anisotropic diffusion in a sample
DE102015205693A1 (de) 2015-03-30 2016-10-06 Siemens Healthcare Gmbh Geschwindigkeitskompensierte diffusionssensibilisierte Diffusionsbildgebung
CA2930091A1 (en) * 2015-05-13 2016-11-13 The Royal Institution For The Advancement Of Learning / Mcgill University Recovery of missing information in diffusion magnetic resonance imaging data
SE1551719A1 (sv) * 2015-12-29 2016-12-20 Cr Dev Ab Method of extracting information about a sample by nuclear magnetic resonance measurements
WO2017132180A1 (en) 2016-01-25 2017-08-03 The Regents Of The University Of California System and method for optimized diffusion--weighted imaging
DE102016202254B4 (de) * 2016-02-15 2017-11-30 Siemens Healthcare Gmbh Modellfreies Ermitteln von Bildbereichen mit anomaler Diffusion anhand von diffusionsgewichteten Magnetresonanzbilddaten
USRE49978E1 (en) * 2016-11-09 2024-05-21 The Brigham And Women's Hospital, Inc. Method of performing diffusion weighted magnetic resonance measurements on a sample
EP3299836B1 (de) * 2017-05-31 2024-09-25 Siemens Healthineers AG Lokale korrektur von gradienten-nichtlinearitäten in der diffusionsgewichteten mrt
US10816630B2 (en) * 2017-06-26 2020-10-27 Ohio State Innovation Foundation Method for computing optimal diffusion encoding gradient waveforms for MRI
US10545211B2 (en) * 2017-06-28 2020-01-28 Synaptive Medical (Barbados) Inc. Method of correcting gradient nonuniformity in gradient motion sensitive imaging applications
BR112020004488A8 (pt) * 2017-09-07 2023-01-24 Cr Dev Ab Métodos para formação de imagem de ressonância magnética ponderada por difusão e para projetar um gradiente de campo magnético dependente de tempo assimétrico
SE543292C2 (en) * 2019-04-26 2020-11-17 Cr Dev Ab A method of performing diffusion weighted magnetic resonance measurements

Also Published As

Publication number Publication date
KR102857970B1 (ko) 2025-09-09
EP3959531A1 (en) 2022-03-02
CA3138172A1 (en) 2020-10-29
JP7500608B2 (ja) 2024-06-17
JP2022530101A (ja) 2022-06-27
CN113811783A (zh) 2021-12-17
BR112021021379A8 (pt) 2023-02-14
SE543292C2 (en) 2020-11-17
US20220221542A1 (en) 2022-07-14
US11747423B2 (en) 2023-09-05
KR20220005040A (ko) 2022-01-12
BR112021021379A2 (enExample) 2021-12-21
WO2020218966A1 (en) 2020-10-29
EP3959531B1 (en) 2024-11-20
US20240192298A1 (en) 2024-06-13
US12164013B2 (en) 2024-12-10
SE1950507A1 (en) 2020-10-27
CN113811783B (zh) 2024-02-13
EP3959531A4 (en) 2023-01-18

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Owner name: RANDOM WALK IMAGING AB

Free format text: FORMER APPLICANT(S): CR DEVELOPMENT AB