JP2002017705A5 - - Google Patents

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Publication number
JP2002017705A5
JP2002017705A5 JP2000203695A JP2000203695A JP2002017705A5 JP 2002017705 A5 JP2002017705 A5 JP 2002017705A5 JP 2000203695 A JP2000203695 A JP 2000203695A JP 2000203695 A JP2000203695 A JP 2000203695A JP 2002017705 A5 JP2002017705 A5 JP 2002017705A5
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Japan
Prior art keywords
magnetic field
generating means
field generating
pair
gradient
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JP2000203695A
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Japanese (ja)
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JP3897958B2 (en
JP2002017705A (en
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Priority to JP2000203695A priority Critical patent/JP3897958B2/en
Priority claimed from JP2000203695A external-priority patent/JP3897958B2/en
Priority to PCT/JP2001/005704 priority patent/WO2002002010A1/en
Priority to US10/332,069 priority patent/US6933722B2/en
Publication of JP2002017705A publication Critical patent/JP2002017705A/en
Publication of JP2002017705A5 publication Critical patent/JP2002017705A5/ja
Application granted granted Critical
Publication of JP3897958B2 publication Critical patent/JP3897958B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Claims (10)

一対の静磁場発生手段と、前記一対の静磁場発生手段を支持するヨーク部と、前記静磁場発生手段が発生する静磁場に磁場強度勾配を与える一対の傾斜磁場発生手段と、前記一対の傾斜磁場発生手段を支持する手段であって、前記一対の傾斜磁場発生手段を前記静磁場発生手段に対し非接触に前記ヨーク部に固定する支持手段とを備えた磁気共鳴イメージング装置。A pair of static magnetic field generating means , a yoke portion supporting the pair of static magnetic field generating means, a pair of gradient magnetic field generating means for giving a magnetic field strength gradient to the static magnetic field generated by the static magnetic field generating means, and the pair of gradients and means for supporting the magnetic field generating means, a magnetic resonance imaging apparatus having a support means for securing said pair of gradient magnetic field generating means to the yoke portion to the non-contact with respect to the static magnetic field generating means. 一対の静磁場発生手段と、前記一対の静磁場発生手段を支持するヨーク部と、前記静磁場発生手段が発生する静磁場に磁場強度勾配を与える一対の傾斜磁場発生手段と、前記一対の傾斜磁場発生手段を支持する手段であって、前記一対の傾斜磁場発生手段が駆動された時に各傾斜磁場発生手段が生ずる振動を前記静磁場発生手段へ直接的に固体伝播させない支持手段とを備えた磁気共鳴イメージング装置。A pair of static magnetic field generating means, a yoke portion supporting the pair of static magnetic field generating means, a pair of gradient magnetic field generating means for giving a magnetic field strength gradient to the static magnetic field generated by the static magnetic field generating means, and the pair of gradients A means for supporting the magnetic field generating means, wherein the vibration generated by each of the gradient magnetic field generating means when the pair of gradient magnetic field generating means is driven is not directly propagating to the static magnetic field generating means. Magnetic resonance imaging device. 請求項１に記載の磁気共鳴イメージング装置において、前記静磁場発生手段は磁場方向と同じ方向に貫通する空隙を備え、前記傾斜磁場発生手段は、前記 空隙内に配置された支持部材を含む支持構造体を介して前記ヨーク部に固定されている。The magnetic resonance imaging apparatus according to claim 1, wherein the static magnetic field generation unit includes a gap that penetrates in the same direction as a magnetic field direction, and the gradient magnetic field generation unit includes a support member disposed in the gap. It is fixed to the yoke part through the body. 請求項１に記載の磁気共鳴イメージング装置において、前記傾斜磁場発生手段は、前記静磁場発生手段を取り囲む支持部材を介して前記ヨーク部に固定されている。  2. The magnetic resonance imaging apparatus according to claim 1, wherein the gradient magnetic field generating means is fixed to the yoke portion via a support member surrounding the static magnetic field generating means. 請求項３に記載の磁気共鳴イメージング装置において、前記傾斜磁場発生手段はその周縁部にて前記靜磁場発生手段を取り囲む支持部材へ固定される。  4. The magnetic resonance imaging apparatus according to claim 3, wherein the gradient magnetic field generating means is fixed to a support member surrounding the squeezed magnetic field generating means at a peripheral portion thereof. 請求項３に記載の磁気共鳴イメージング装置において、前記傾斜磁場発生手段の周縁部と前記靜磁場発生手段との間に振動減衰材が配置されている。  4. The magnetic resonance imaging apparatus according to claim 3, wherein a vibration damping material is disposed between a peripheral edge portion of the gradient magnetic field generating means and the saddle magnetic field generating means. 請求項３に記載の磁気共鳴イメージング装置において、前記傾斜磁場発生手段は吸音マットによって覆われている。  4. The magnetic resonance imaging apparatus according to claim 3, wherein the gradient magnetic field generating means is covered with a sound absorbing mat. 請求項３に記載の磁気共鳴イメージング装置において、前記傾斜磁場発生手段を支持する手段は、前記静磁場発生手段の空隙に配置された非磁性の第１の支持部材と、前記靜磁場発生手段の背後に配置された非磁性の第２の支持部材とから構成される。  4. The magnetic resonance imaging apparatus according to claim 3, wherein the means for supporting the gradient magnetic field generating means includes a non-magnetic first support member disposed in a gap of the static magnetic field generating means, and the negative magnetic field generating means. And a non-magnetic second support member disposed behind. 請求項７に記載の磁気共鳴イメージング装置において、前記第２の支持部材は床面及び／叉は天井に固定される。  8. The magnetic resonance imaging apparatus according to claim 7, wherein the second support member is fixed to a floor surface and / or a ceiling. 請求項３に記載の磁気共鳴イメージング装置において、前記靜磁場発生手段の空隙に配置された支持部材は中空の棒状部材である。  4. The magnetic resonance imaging apparatus according to claim 3, wherein the support member disposed in the gap of the squeezed magnetic field generating means is a hollow rod-shaped member.
JP2000203695A 2000-07-05 2000-07-05 Magnetic resonance imaging system Expired - Fee Related JP3897958B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2000203695A JP3897958B2 (en) 2000-07-05 2000-07-05 Magnetic resonance imaging system
PCT/JP2001/005704 WO2002002010A1 (en) 2000-07-05 2001-07-02 Magnetic resonance imaging device and gradient magnetic field coil used for it
US10/332,069 US6933722B2 (en) 2000-07-05 2001-07-02 Magnetic resonance imaging device and gradient magnetic field coil used for it

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000203695A JP3897958B2 (en) 2000-07-05 2000-07-05 Magnetic resonance imaging system

Publications (3)

Publication Number Publication Date
JP2002017705A JP2002017705A (en) 2002-01-22
JP2002017705A5 true JP2002017705A5 (en) 2006-03-23
JP3897958B2 JP3897958B2 (en) 2007-03-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000203695A Expired - Fee Related JP3897958B2 (en) 2000-07-05 2000-07-05 Magnetic resonance imaging system

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JP (1) JP3897958B2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004081596A1 (en) * 2003-03-13 2004-09-23 Koninklijke Philips Electronics N.V. Mri system having a gradient magnet system with a gyroscope
WO2004093681A1 (en) * 2003-04-23 2004-11-04 Hitachi Medical Corporation Magnetic resonance imaging device
WO2005115239A1 (en) * 2004-05-31 2005-12-08 Hitachi Medical Corporation Magnetic resonance imaging device
JP2006141614A (en) 2004-11-18 2006-06-08 Mitsubishi Electric Corp Magnet system, method of installing magnet system, and magnetic resonance image diagnostic apparatus
JP4266232B2 (en) 2006-11-17 2009-05-20 株式会社日立製作所 Superconducting magnet apparatus and magnetic resonance imaging apparatus
JP5224275B2 (en) * 2008-03-28 2013-07-03 日立金属株式会社 PET / MRI integrated device
US9989605B2 (en) * 2013-11-22 2018-06-05 Toshiba Medical Systems Corporation Magnetic resonance imaging apparatus
JP6341535B2 (en) * 2014-04-30 2018-06-13 株式会社エム・アール・テクノロジー Imaging unit

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