JP6873686B2 - 磁気共鳴イメージング装置 - Google Patents

磁気共鳴イメージング装置 Download PDF

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Publication number
JP6873686B2
JP6873686B2 JP2016251960A JP2016251960A JP6873686B2 JP 6873686 B2 JP6873686 B2 JP 6873686B2 JP 2016251960 A JP2016251960 A JP 2016251960A JP 2016251960 A JP2016251960 A JP 2016251960A JP 6873686 B2 JP6873686 B2 JP 6873686B2
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Japan
Prior art keywords
image
pulse sequence
data
value
magnetic resonance
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JP2016251960A
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English (en)
Japanese (ja)
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JP2018102585A (ja
JP2018102585A5 (https=
Inventor
和大 末岡
和大 末岡
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Canon Medical Systems Corp
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Canon Medical Systems Corp
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Priority to JP2016251960A priority Critical patent/JP6873686B2/ja
Priority to US15/852,708 priority patent/US10459053B2/en
Publication of JP2018102585A publication Critical patent/JP2018102585A/ja
Publication of JP2018102585A5 publication Critical patent/JP2018102585A5/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
    • G01R33/50—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
    • G01R33/4816—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
    • G01R33/54—Signal processing systems, e.g. using pulse sequences ; Generation or control of pulse sequences; Operator console
    • G01R33/546—Interface between the MR system and the user, e.g. for controlling the operation of the MR system or for the design of pulse 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
    • G01R33/5602—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
    • G01R33/561—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

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  • Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • General Health & Medical Sciences (AREA)
  • Radiology & Medical Imaging (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
JP2016251960A 2016-12-26 2016-12-26 磁気共鳴イメージング装置 Expired - Fee Related JP6873686B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2016251960A JP6873686B2 (ja) 2016-12-26 2016-12-26 磁気共鳴イメージング装置
US15/852,708 US10459053B2 (en) 2016-12-26 2017-12-22 Magnetic resonance imaging apparatus and magnetic resonance imaging method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2016251960A JP6873686B2 (ja) 2016-12-26 2016-12-26 磁気共鳴イメージング装置

Publications (3)

Publication Number Publication Date
JP2018102585A JP2018102585A (ja) 2018-07-05
JP2018102585A5 JP2018102585A5 (https=) 2020-01-16
JP6873686B2 true JP6873686B2 (ja) 2021-05-19

Family

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Family Applications (1)

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JP2016251960A Expired - Fee Related JP6873686B2 (ja) 2016-12-26 2016-12-26 磁気共鳴イメージング装置

Country Status (2)

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US (1) US10459053B2 (https=)
JP (1) JP6873686B2 (https=)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019232437A1 (en) * 2018-06-01 2019-12-05 The Trustees of The Uniiversity of Pennsylvania Solid-state mri as a noninvasive alternative to computed tomography (ct)
CN112946546B (zh) * 2019-12-10 2023-10-27 西门子(深圳)磁共振有限公司 短t2组织的成像方法、系统及磁共振成像系统
US20250155535A1 (en) * 2022-04-29 2025-05-15 Koninklijke Philips N.V. Simulated computer tomographic imaging

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5101896B2 (ja) * 2007-01-17 2012-12-19 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 画像表示装置、画像表示方法、および、磁気共鳴イメージング装置
JP5483308B2 (ja) * 2007-11-21 2014-05-07 株式会社東芝 磁気共鳴イメージング装置
JP5591500B2 (ja) * 2009-07-30 2014-09-17 株式会社日立メディコ 磁気共鳴イメージング装置、および、画像再構成プログラム
WO2011089551A2 (en) * 2010-01-22 2011-07-28 Koninklijke Philips Electronics N.V. Susceptibility gradient mapping
JP5591582B2 (ja) 2010-04-27 2014-09-17 株式会社東芝 磁気共鳴イメージング装置
WO2013001399A2 (en) * 2011-06-27 2013-01-03 Koninklijke Philips Electronics N.V. Magnetic resonance imaging of bone tissue
WO2013175403A1 (en) * 2012-05-23 2013-11-28 Koninklijke Philips N.V. Multi-echo presto
US9545206B2 (en) * 2012-08-16 2017-01-17 Toshiba Medical Systems Corporation Non-contrast MRI with differentiation of ischemic, infarct and normal tissue
JP5966112B1 (ja) * 2013-04-02 2016-08-10 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． 磁気共鳴画像法を使用した骨組織の検出
US10089729B2 (en) 2014-04-23 2018-10-02 Toshiba Medical Systems Corporation Merging magnetic resonance (MR) magnitude and phase images

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Publication number Publication date
US20180180694A1 (en) 2018-06-28
JP2018102585A (ja) 2018-07-05
US10459053B2 (en) 2019-10-29

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