JP2023027608A - 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プログラム - Google Patents

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プログラム Download PDF

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Publication number
JP2023027608A
JP2023027608A JP2021132819A JP2021132819A JP2023027608A JP 2023027608 A JP2023027608 A JP 2023027608A JP 2021132819 A JP2021132819 A JP 2021132819A JP 2021132819 A JP2021132819 A JP 2021132819A JP 2023027608 A JP2023027608 A JP 2023027608A
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imaging
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breath
holding
magnetic resonance
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Japanese (ja)
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JP2023027608A5 (enExample
Inventor
慎也 小澤
Shinya Ozawa
剛 石本
Takeshi Ishimoto
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Canon Medical Systems Corp
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Canon Medical Systems Corp
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Priority to JP2021132819A priority Critical patent/JP2023027608A/ja
Priority to US17/819,348 priority patent/US11933871B2/en
Publication of JP2023027608A publication Critical patent/JP2023027608A/ja
Publication of JP2023027608A5 publication Critical patent/JP2023027608A5/ja
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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
    • G01R33/543—Control of the operation of the MR system, e.g. setting of acquisition parameters prior to or during MR data acquisition, dynamic shimming, use of one or more scout images for scan plane prescription
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Measuring devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor or mobility of a limb
    • A61B5/113—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor or mobility of a limb occurring during breathing
    • A61B5/1135—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor or mobility of a limb occurring during breathing by monitoring thoracic expansion
    • 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
    • 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
    • A61B5/7292—Prospective gating, i.e. predicting the occurrence of a physiological event for use as a synchronisation signal
    • 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
    • G01R33/5673—Gating or triggering based on a physiological signal other than an MR signal, e.g. ECG gating or motion monitoring using optical systems for monitoring the motion of a fiducial marker
    • 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
    • G01R33/5602—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution by filtering or weighting based on different relaxation times within the sample, e.g. T1 weighting using an inversion pulse
    • 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

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Biophysics (AREA)
  • General Health & Medical Sciences (AREA)
  • Physiology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Signal Processing (AREA)
  • Public Health (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Veterinary Medicine (AREA)
  • Biomedical Technology (AREA)
  • Molecular Biology (AREA)
  • Medical Informatics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Psychiatry (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Artificial Intelligence (AREA)
  • Pulmonology (AREA)
  • Power Engineering (AREA)
  • Cardiology (AREA)
  • Dentistry (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
JP2021132819A 2021-08-17 2021-08-17 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プログラム Pending JP2023027608A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2021132819A JP2023027608A (ja) 2021-08-17 2021-08-17 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プログラム
US17/819,348 US11933871B2 (en) 2021-08-17 2022-08-12 MRI apparatus and MRI method

Applications Claiming Priority (1)

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JP2021132819A JP2023027608A (ja) 2021-08-17 2021-08-17 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プログラム

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JP2023027608A true JP2023027608A (ja) 2023-03-02
JP2023027608A5 JP2023027608A5 (enExample) 2024-07-31

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* Cited by examiner, † Cited by third party
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EP4449983A1 (de) * 2023-04-17 2024-10-23 Siemens Healthineers AG Verfahren zur vorhersage der atemanhaltedauer in einem medizinischen bildgebungsverfahren

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003339662A (ja) * 2002-05-22 2003-12-02 Ge Medical Systems Global Technology Co Llc 磁気共鳴撮像方法および装置
JP2011194241A (ja) * 2010-03-18 2011-10-06 General Electric Co <Ge> Ｍｒ撮像スキャンパラメータの自動算定のためのシステム及び方法
JP2012075509A (ja) * 2010-09-30 2012-04-19 Ge Medical Systems Global Technology Co Llc 磁気共鳴イメージング装置およびプログラム
JP2014042565A (ja) * 2012-08-24 2014-03-13 Toshiba Corp 磁気共鳴イメージング装置
JP2019092593A (ja) * 2017-11-17 2019-06-20 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

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014081022A1 (ja) 2012-11-22 2014-05-30 株式会社東芝 磁気共鳴イメージング装置及び磁気共鳴イメージング方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003339662A (ja) * 2002-05-22 2003-12-02 Ge Medical Systems Global Technology Co Llc 磁気共鳴撮像方法および装置
JP2011194241A (ja) * 2010-03-18 2011-10-06 General Electric Co <Ge> Ｍｒ撮像スキャンパラメータの自動算定のためのシステム及び方法
JP2012075509A (ja) * 2010-09-30 2012-04-19 Ge Medical Systems Global Technology Co Llc 磁気共鳴イメージング装置およびプログラム
JP2014042565A (ja) * 2012-08-24 2014-03-13 Toshiba Corp 磁気共鳴イメージング装置
JP2019092593A (ja) * 2017-11-17 2019-06-20 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

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US20230054048A1 (en) 2023-02-23

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