JP4526648B2 - 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
JP4526648B2
JP4526648B2 JP2000089698A JP2000089698A JP4526648B2 JP 4526648 B2 JP4526648 B2 JP 4526648B2 JP 2000089698 A JP2000089698 A JP 2000089698A JP 2000089698 A JP2000089698 A JP 2000089698A JP 4526648 B2 JP4526648 B2 JP 4526648B2
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Japan
Prior art keywords
magnetic resonance
magnetic field
image
phase
temperature
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JP2000089698A
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Japanese (ja)
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JP2001145609A5 (https=
JP2001145609A (ja
Inventor
和美 小村
哲彦 高橋
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Hitachi Healthcare Manufacturing Ltd
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Hitachi Medical Corp
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Priority to JP2000089698A priority Critical patent/JP4526648B2/ja
Priority to US10/070,615 priority patent/US6566878B1/en
Priority to PCT/JP2000/006154 priority patent/WO2001017428A1/ja
Publication of JP2001145609A publication Critical patent/JP2001145609A/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
    • G01R33/56—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
    • G01R33/56563—Correction of image distortions, e.g. due to magnetic field inhomogeneities caused by a distortion of the main magnetic field B0, e.g. temporal variation of the magnitude or spatial inhomogeneity of B0

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
JP2000089698A 1999-09-09 2000-03-28 磁気共鳴イメージング装置 Expired - Fee Related JP4526648B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2000089698A JP4526648B2 (ja) 1999-09-09 2000-03-28 磁気共鳴イメージング装置
US10/070,615 US6566878B1 (en) 1999-09-09 2000-09-08 Magnetic resonance imaging device and method therefor
PCT/JP2000/006154 WO2001017428A1 (fr) 1999-09-09 2000-09-08 Dispositif d'imagerie par resonance magnetique et procede associe

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP25584899 1999-09-09
JP11-255848 1999-09-09
JP2000089698A JP4526648B2 (ja) 1999-09-09 2000-03-28 磁気共鳴イメージング装置

Publications (3)

Publication Number Publication Date
JP2001145609A JP2001145609A (ja) 2001-05-29
JP2001145609A5 JP2001145609A5 (https=) 2007-05-17
JP4526648B2 true JP4526648B2 (ja) 2010-08-18

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JP2000089698A Expired - Fee Related JP4526648B2 (ja) 1999-09-09 2000-03-28 磁気共鳴イメージング装置

Country Status (3)

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US (1) US6566878B1 (https=)
JP (1) JP4526648B2 (https=)
WO (1) WO2001017428A1 (https=)

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6618620B1 (en) 2000-11-28 2003-09-09 Txsonics Ltd. Apparatus for controlling thermal dosing in an thermal treatment system
US6738501B2 (en) * 2001-04-13 2004-05-18 Ge Medical Systems Global Technology Co., Llc Adaptive data differentiation and selection from multi-coil receiver to reduce artifacts in reconstruction
JP4443079B2 (ja) * 2001-09-13 2010-03-31 株式会社日立メディコ 磁気共鳴イメージング装置及び磁気共鳴イメージング装置用ｒｆ受信コイル
US8088067B2 (en) * 2002-12-23 2012-01-03 Insightec Ltd. Tissue aberration corrections in ultrasound therapy
US7611462B2 (en) * 2003-05-22 2009-11-03 Insightec-Image Guided Treatment Ltd. Acoustic beam forming in phased arrays including large numbers of transducer elements
US7377900B2 (en) * 2003-06-02 2008-05-27 Insightec - Image Guided Treatment Ltd. Endo-cavity focused ultrasound transducer
JP4639045B2 (ja) * 2003-07-11 2011-02-23 財団法人先端医療振興財団 磁気共鳴断層画像法による自己参照型・体動追従型の非侵襲体内温度分布計測方法及びその装置
US20050206380A1 (en) * 2004-03-19 2005-09-22 Seeber Derek A Method and apparatus for temperature-controlled application of radio frequency power in magnetic resonance imaging
CN1993628B (zh) * 2004-08-02 2011-05-04 皇家飞利浦电子股份有限公司 一种磁共振成像系统和计算温度差值图的方法
JP2008510557A (ja) * 2004-08-25 2008-04-10 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 校正されたファントムを使用して局所弛緩時間値を決定する方法
US8409099B2 (en) 2004-08-26 2013-04-02 Insightec Ltd. Focused ultrasound system for surrounding a body tissue mass and treatment method
US8801701B2 (en) * 2005-03-09 2014-08-12 Sunnybrook Health Sciences Centre Method and apparatus for obtaining quantitative temperature measurements in prostate and other tissue undergoing thermal therapy treatment
US20070016039A1 (en) * 2005-06-21 2007-01-18 Insightec-Image Guided Treatment Ltd. Controlled, non-linear focused ultrasound treatment
CN101313354B (zh) * 2005-11-23 2012-02-15 因赛泰克有限公司 超高密度超声阵列中的分级切换
US8235901B2 (en) * 2006-04-26 2012-08-07 Insightec, Ltd. Focused ultrasound system with far field tail suppression
US20100030076A1 (en) * 2006-08-01 2010-02-04 Kobi Vortman Systems and Methods for Simultaneously Treating Multiple Target Sites
JP5015568B2 (ja) * 2006-12-12 2012-08-29 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 位相変化融合画像表示方法および装置
US20080146912A1 (en) * 2006-12-18 2008-06-19 University Of Maryland, Baltimore Inter-communicator process for simultaneous mri thermography and radio frequency ablation
US8251908B2 (en) 2007-10-01 2012-08-28 Insightec Ltd. Motion compensated image-guided focused ultrasound therapy system
US8425424B2 (en) * 2008-11-19 2013-04-23 Inightee Ltd. Closed-loop clot lysis
JP5661473B2 (ja) * 2008-12-26 2015-01-28 株式会社日立メディコ 磁気共鳴イメージング装置及び読み出し傾斜磁場誤差補正方法
US20100179425A1 (en) * 2009-01-13 2010-07-15 Eyal Zadicario Systems and methods for controlling ultrasound energy transmitted through non-uniform tissue and cooling of same
US8617073B2 (en) * 2009-04-17 2013-12-31 Insightec Ltd. Focusing ultrasound into the brain through the skull by utilizing both longitudinal and shear waves
EP2440292A1 (en) * 2009-06-10 2012-04-18 Insightec Ltd. Acoustic-feedback power control during focused ultrasound delivery
US9623266B2 (en) * 2009-08-04 2017-04-18 Insightec Ltd. Estimation of alignment parameters in magnetic-resonance-guided ultrasound focusing
US9289154B2 (en) 2009-08-19 2016-03-22 Insightec Ltd. Techniques for temperature measurement and corrections in long-term magnetic resonance thermometry
US20110046475A1 (en) * 2009-08-24 2011-02-24 Benny Assif Techniques for correcting temperature measurement in magnetic resonance thermometry
US9177543B2 (en) * 2009-08-26 2015-11-03 Insightec Ltd. Asymmetric ultrasound phased-array transducer for dynamic beam steering to ablate tissues in MRI
US8661873B2 (en) 2009-10-14 2014-03-04 Insightec Ltd. Mapping ultrasound transducers
US8368401B2 (en) * 2009-11-10 2013-02-05 Insightec Ltd. Techniques for correcting measurement artifacts in magnetic resonance thermometry
US8482285B2 (en) * 2010-01-19 2013-07-09 Insightec Ltd. Multibaseline PRF-shift magnetic resonance thermometry
JP5657967B2 (ja) * 2010-03-02 2015-01-21 日本碍子株式会社 １ｈ−ｎｍｒのｔ１緩和時間およびｔ２緩和時間の校正用試料
US9852727B2 (en) 2010-04-28 2017-12-26 Insightec, Ltd. Multi-segment ultrasound transducers
US8932237B2 (en) 2010-04-28 2015-01-13 Insightec, Ltd. Efficient ultrasound focusing
US9981148B2 (en) 2010-10-22 2018-05-29 Insightec, Ltd. Adaptive active cooling during focused ultrasound treatment
US12402802B2 (en) 2011-08-31 2025-09-02 Insightec Ltd. Avoiding MRI-interference with co-existing systems
CN102488497B (zh) * 2011-12-12 2014-07-02 中国科学院深圳先进技术研究院 磁共振温度测量方法及系统
US10036793B2 (en) * 2015-05-08 2018-07-31 Siemens Healthcare Gmbh Method and apparatus for reconstructing magnetic resonance images with phase noise-dependent selection of raw data
US10742999B2 (en) * 2017-01-06 2020-08-11 Mediatek Inc. Methods and apparatus for signaling viewports and regions of interest

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6281538A (ja) * 1985-10-04 1987-04-15 Jeol Ltd 磁気共鳴を用いた温度分布測定方法
JPH0337046A (ja) * 1989-07-04 1991-02-18 Sanyo Electric Co Ltd 磁気共鳴撮像装置の磁場状態検出方法
JP3222248B2 (ja) * 1993-03-11 2001-10-22 株式会社日立製作所 Ｍｒｉ装置
JP3373578B2 (ja) * 1993-03-15 2003-02-04 株式会社東芝 磁気共鳴画像装置
JP3519486B2 (ja) * 1995-03-15 2004-04-12 株式会社東芝 磁気共鳴診断装置
JP3586047B2 (ja) * 1995-09-13 2004-11-10 株式会社東芝 磁気共鳴診断装置
EP0944841A1 (en) * 1997-10-16 1999-09-29 Koninklijke Philips Electronics N.V. Method of and device for determining a temperature distribution in an object by means of magnetic resonance
JPH11225991A (ja) * 1998-02-19 1999-08-24 Toshiba Corp 体温監視装置及び体温監視方法
US6377834B1 (en) * 1999-05-19 2002-04-23 Wisconsin Alumni Research Foundation Real time in vivo measurement of temperature changes with contrast enhanced NMR imaging

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Publication number Publication date
WO2001017428A1 (fr) 2001-03-15
US6566878B1 (en) 2003-05-20
JP2001145609A (ja) 2001-05-29

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