WO2008087822A1 - 磁気共鳴撮影装置および磁気共鳴スペクトル画像算出方法 - Google Patents

磁気共鳴撮影装置および磁気共鳴スペクトル画像算出方法 Download PDF

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Publication number
WO2008087822A1
WO2008087822A1 PCT/JP2007/074205 JP2007074205W WO2008087822A1 WO 2008087822 A1 WO2008087822 A1 WO 2008087822A1 JP 2007074205 W JP2007074205 W JP 2007074205W WO 2008087822 A1 WO2008087822 A1 WO 2008087822A1
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Prior art keywords
magnetic resonance
measurement
image signal
coils
water
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PCT/JP2007/074205
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English (en)
French (fr)
Inventor
Satoshi Hirata
Yoshitaka Bito
Kiyoharu Tanaka
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Hitachi Medical Corporation
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Priority to JP2008553988A priority Critical patent/JP4845972B2/ja
Priority to US12/523,259 priority patent/US8258785B2/en
Publication of WO2008087822A1 publication Critical patent/WO2008087822A1/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]
    • G01R33/46—NMR spectroscopy
    • 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
    • A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
    • A61B5/7235—Details of waveform analysis
    • A61B5/7253—Details of waveform analysis characterised by using transforms
    • A61B5/7257—Details of waveform analysis characterised by using transforms using Fourier transforms

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Biophysics (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)

Abstract

　マルチアレイコイル（ＭＡＣ）を備えた磁気共鳴撮影装置を用いたＭＲＳＩ計測において、各コイルの位相特性分布に空間的不均一がある場合であっても、短時間に高いＭＡＣ合成効果を得ること、すなわち位相特性の不均一によるＳＮＲ低下を防止することを目的とする。水抑圧を行わない非水抑圧計測（リファレンス計測）で取得されるＳＮＲの高い非水抑圧画像信号を用いて、コイル毎および画素毎に、位相歪みを揃えるための補正値を算出し、水抑圧を行って計測した本計測画像信号（水抑圧画像信号）に対して、前記補正値を適用して、コイル毎および画素毎の位相を揃えた後で、コイル毎に作成される画像の足し合わせ処理（合成）を行う。そして、合成後のスペクトルに対して、通常の位相補正を行う。
PCT/JP2007/074205 2007-01-17 2007-12-17 磁気共鳴撮影装置および磁気共鳴スペクトル画像算出方法 WO2008087822A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2008553988A JP4845972B2 (ja) 2007-01-17 2007-12-17 磁気共鳴スペクトル画像算出方法
US12/523,259 US8258785B2 (en) 2007-01-17 2007-12-17 Magnetic resonance imaging apparatus and magnetic resonance spectroscopic image computing method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007008008 2007-01-17
JP2007-008008 2007-01-17

Publications (1)

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WO2008087822A1 true WO2008087822A1 (ja) 2008-07-24

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US (1) US8258785B2 (ja)
JP (2) JP4845972B2 (ja)
WO (1) WO2008087822A1 (ja)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012057222A1 (ja) * 2010-10-28 2012-05-03 株式会社 日立メディコ 磁気共鳴撮影装置
WO2013027539A1 (ja) * 2011-08-24 2013-02-28 株式会社日立メディコ 磁気共鳴撮影装置、位相値補正方法およびプログラム
JP2014069038A (ja) * 2012-10-02 2014-04-21 Hitachi Medical Corp 多チャンネル画像合成方法及び磁気共鳴イメージング装置
JP2015509584A (ja) * 2012-02-10 2015-03-30 ザ・チルドレンズ・メデイカル・センター・コーポレーシヨン Ｎｍｒベースの代謝産物スクリーニングプラットフォーム

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8258785B2 (en) * 2007-01-17 2012-09-04 Hitachi Medical Corporation Magnetic resonance imaging apparatus and magnetic resonance spectroscopic image computing method
JP2010100474A (ja) * 2008-10-23 2010-05-06 Covalent Materials Corp シリコン単結晶引上げ水平磁場の最適化方法およびシリコン単結晶の製造方法
CN101963657B (zh) * 2009-07-24 2012-12-05 西门子(深圳)磁共振有限公司 边带抑制方法和边带抑制装置
WO2013063302A1 (en) * 2011-10-25 2013-05-02 New York University Apparatus, systems and methods which are based on magnetic resonance imaging for evaluation(s) of radio frequency emitting device(s)
US9008399B2 (en) * 2013-01-28 2015-04-14 Wisconsin Alumni Research Foundation System and method for joint reconstruction of spatial and spectral imaging data

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JPH1176191A (ja) * 1997-09-09 1999-03-23 Hitachi Medical Corp 磁気共鳴診断装置
JP2002315732A (ja) * 2001-04-23 2002-10-29 Toshiba Corp 磁気共鳴装置及び磁気共鳴装置における信号処理方法
JP2005537896A (ja) * 2002-09-13 2005-12-15 ウニヴェルジテート ブレーメン スペクトロスコピック・イメージ撮像方法、その方法を実行する手段を備えた装置、並びにその方法の材料特性分析における利用

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US5709208A (en) * 1994-04-08 1998-01-20 The United States Of America As Represented By The Department Of Health And Human Services Method and system for multidimensional localization and for rapid magnetic resonance spectroscopic imaging
JP3427059B2 (ja) 2001-04-13 2003-07-14 株式会社東芝 磁気共鳴診断装置
WO2004086060A2 (en) * 2003-03-20 2004-10-07 Case Western Reserve University Chemical species suppression for mri imaging using spiral trajectories with off-resonance correction
CN100396239C (zh) * 2005-02-28 2008-06-25 西门子（中国）有限公司 磁共振多通道成像水脂分离重建算法
US7298144B2 (en) * 2005-05-06 2007-11-20 The Board Of Trustee Of The Leland Stanford Junior University Homodyne reconstruction of water and fat images based on iterative decomposition of MRI signals
US8258785B2 (en) * 2007-01-17 2012-09-04 Hitachi Medical Corporation Magnetic resonance imaging apparatus and magnetic resonance spectroscopic image computing method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1176191A (ja) * 1997-09-09 1999-03-23 Hitachi Medical Corp 磁気共鳴診断装置
JP2002315732A (ja) * 2001-04-23 2002-10-29 Toshiba Corp 磁気共鳴装置及び磁気共鳴装置における信号処理方法
JP2005537896A (ja) * 2002-09-13 2005-12-15 ウニヴェルジテート ブレーメン スペクトロスコピック・イメージ撮像方法、その方法を実行する手段を備えた装置、並びにその方法の材料特性分析における利用

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012057222A1 (ja) * 2010-10-28 2012-05-03 株式会社 日立メディコ 磁気共鳴撮影装置
JP5636058B2 (ja) * 2010-10-28 2014-12-03 株式会社日立メディコ 磁気共鳴撮影装置
US9389289B2 (en) 2010-10-28 2016-07-12 Hitachi Medical Corporation Magnetic resonance imaging device
WO2013027539A1 (ja) * 2011-08-24 2013-02-28 株式会社日立メディコ 磁気共鳴撮影装置、位相値補正方法およびプログラム
US9678187B2 (en) 2011-08-24 2017-06-13 Hitachi, Ltd. Magnetic resonance imaging device, phase value correction method and program
JP2015509584A (ja) * 2012-02-10 2015-03-30 ザ・チルドレンズ・メデイカル・センター・コーポレーシヨン Ｎｍｒベースの代謝産物スクリーニングプラットフォーム
US9606106B2 (en) 2012-02-10 2017-03-28 Children's Medical Center Corporation NMR-based metabolite screening platform
JP2014069038A (ja) * 2012-10-02 2014-04-21 Hitachi Medical Corp 多チャンネル画像合成方法及び磁気共鳴イメージング装置

Also Published As

Publication number Publication date
JP4845972B2 (ja) 2011-12-28
JP2012035097A (ja) 2012-02-23
JPWO2008087822A1 (ja) 2010-05-06
JP5479427B2 (ja) 2014-04-23
US8258785B2 (en) 2012-09-04
US20100013481A1 (en) 2010-01-21

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