JP6580953B2 - 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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JP6580953B2
JP6580953B2 JP2015224242A JP2015224242A JP6580953B2 JP 6580953 B2 JP6580953 B2 JP 6580953B2 JP 2015224242 A JP2015224242 A JP 2015224242A JP 2015224242 A JP2015224242 A JP 2015224242A JP 6580953 B2 JP6580953 B2 JP 6580953B2
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power ratio
body surface
magnetic resonance
surface area
resonance imaging
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Japanese (ja)
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JP2016112407A5 (enExample
JP2016112407A (ja
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シン・チェン
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Canon Medical Systems Corp
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Canon Medical Systems Corp
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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
    • G01R33/28—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
    • 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

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  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
JP2015224242A 2014-12-17 2015-11-16 磁気共鳴イメージング装置 Active JP6580953B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14/573,498 2014-12-17
US14/573,498 US9910111B2 (en) 2014-12-17 2014-12-17 Systems and methods for improved and efficient determination of the specific absorption rate (SAR) in MRI

Publications (3)

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JP2016112407A JP2016112407A (ja) 2016-06-23
JP2016112407A5 JP2016112407A5 (enExample) 2018-11-29
JP6580953B2 true JP6580953B2 (ja) 2019-09-25

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JP2015224242A Active JP6580953B2 (ja) 2014-12-17 2015-11-16 磁気共鳴イメージング装置

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US (2) US9910111B2 (enExample)
JP (1) JP6580953B2 (enExample)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9910111B2 (en) 2014-12-17 2018-03-06 Toshiba Medical Systems Corporation Systems and methods for improved and efficient determination of the specific absorption rate (SAR) in MRI
CN107137083B (zh) * 2017-06-16 2020-05-15 上海联影医疗科技有限公司 一种磁共振扫描方法、系统及计算机可读存储介质
US10444305B2 (en) * 2017-06-21 2019-10-15 Canon Medical Systems Corporation Magnetic resonance imaging apparatus and specific absorption rate calculation method
JP6965073B2 (ja) * 2017-09-19 2021-11-10 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
EP3584596A1 (en) * 2018-06-19 2019-12-25 Koninklijke Philips N.V. Tracking of image quality in magnetic resonance imaging
DE102018212091A1 (de) * 2018-07-19 2020-01-23 Siemens Healthcare Gmbh Ermittlung einer belastungsoptimierten MR-Sequenz

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10150137B4 (de) 2001-10-11 2006-08-17 Siemens Ag Verfahren und Vorrichtung zur Magnetresonanz-Bildgebung
DE10150138B4 (de) 2001-10-11 2009-10-08 Siemens Ag Verfahren zur Magnetresonanz-Bildgebung
DE10153320B4 (de) 2001-10-29 2006-08-31 Siemens Ag Verfahren und Vorrichtung zur Magnetresonanz-Bildgebung unter Einbeziehung der Leistungs-Historie
EP1642151A1 (en) 2003-06-30 2006-04-05 Koninklijke Philips Electronics N.V. Control of specific absorption rate (asr) in mri
JP4820601B2 (ja) * 2004-08-30 2011-11-24 株式会社東芝 磁気共鳴診断装置
JP2009082331A (ja) * 2007-09-28 2009-04-23 Toshiba Corp 磁気共鳴イメージング装置
EP2343567A1 (en) * 2009-12-31 2011-07-13 Koninklijke Philips Electronics N.V. Method for calculating local specific energy absorption rate (SAR) in nuclear magnetic resonance
JP5814912B2 (ja) * 2010-03-31 2015-11-17 株式会社日立メディコ 磁気共鳴イメージング装置及びｓａｒ調整方法
JP2013031633A (ja) * 2011-06-29 2013-02-14 Hitachi Medical Corp 磁気共鳴イメージング装置及びｓａｒ予測方法
BR112015008810A2 (pt) * 2012-10-23 2017-07-04 Koninklijke Philips Nv sistema e método de imageamento por ressonância magnética
US9714993B2 (en) * 2013-01-11 2017-07-25 Toshiba Medical Systems Corporation Determination of specific absorption rate (SAR) in magnetic resonance imaging (MRI)
WO2015056569A1 (ja) * 2013-10-16 2015-04-23 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その撮像パラメータ変更支援方法
US10016147B2 (en) * 2014-05-05 2018-07-10 Michael Thornton Method and system for estimating the specific absorption rate of a tissue region prior to a magnetic resonance imaging scan
US9910111B2 (en) 2014-12-17 2018-03-06 Toshiba Medical Systems Corporation Systems and methods for improved and efficient determination of the specific absorption rate (SAR) in MRI
US10088537B2 (en) * 2015-05-13 2018-10-02 The Board Of Trustees Of The Leland Stanford Junior University Method and apparatus for SAR focusing with an array of RF transmitters

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Publication number Publication date
US20160178711A1 (en) 2016-06-23
US10180470B2 (en) 2019-01-15
US9910111B2 (en) 2018-03-06
US20180156877A1 (en) 2018-06-07
JP2016112407A (ja) 2016-06-23

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