JP4753570B2 - 複数撮像領域傾斜コイルのための方法及び装置 - Google Patents

複数撮像領域傾斜コイルのための方法及び装置 Download PDF

Info

Publication number
JP4753570B2
JP4753570B2 JP2004340299A JP2004340299A JP4753570B2 JP 4753570 B2 JP4753570 B2 JP 4753570B2 JP 2004340299 A JP2004340299 A JP 2004340299A JP 2004340299 A JP2004340299 A JP 2004340299A JP 4753570 B2 JP4753570 B2 JP 4753570B2
Authority
JP
Japan
Prior art keywords
coil
imaging
current density
radius
magnetic field
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2004340299A
Other languages
English (en)
Japanese (ja)
Other versions
JP2005199043A (ja
JP2005199043A5 (enExample
Inventor
グレーム・コリン・マッキノン
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GE Medical Systems Global Technology Co LLC
Original Assignee
GE Medical Systems Global Technology Co LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GE Medical Systems Global Technology Co LLC filed Critical GE Medical Systems Global Technology Co LLC
Publication of JP2005199043A publication Critical patent/JP2005199043A/ja
Publication of JP2005199043A5 publication Critical patent/JP2005199043A5/ja
Application granted granted Critical
Publication of JP4753570B2 publication Critical patent/JP4753570B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • 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
    • G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
    • G01R33/385—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using gradient magnetic field coils

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
JP2004340299A 2003-11-26 2004-11-25 複数撮像領域傾斜コイルのための方法及び装置 Expired - Fee Related JP4753570B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/722,975 2003-11-26
US10/722,975 US6975116B2 (en) 2003-11-26 2003-11-26 Method and apparatus for multiple field of view gradient coils

Publications (3)

Publication Number Publication Date
JP2005199043A JP2005199043A (ja) 2005-07-28
JP2005199043A5 JP2005199043A5 (enExample) 2009-12-17
JP4753570B2 true JP4753570B2 (ja) 2011-08-24

Family

ID=33565376

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004340299A Expired - Fee Related JP4753570B2 (ja) 2003-11-26 2004-11-25 複数撮像領域傾斜コイルのための方法及び装置

Country Status (5)

Country Link
US (1) US6975116B2 (enExample)
JP (1) JP4753570B2 (enExample)
CN (1) CN100435725C (enExample)
DE (1) DE102004057028A1 (enExample)
GB (1) GB2408583B (enExample)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7468644B2 (en) * 2004-11-05 2008-12-23 New York University Gradient coil arrangement and method for using the same
GB2448479B (en) * 2007-04-18 2009-06-03 Siemens Magnet Technology Ltd Improved shim for imaging magnets
US8063638B2 (en) * 2009-03-31 2011-11-22 General Electric Company Liquid dielectric gradient coil system and method
US10989775B2 (en) * 2017-11-08 2021-04-27 Canon Medical Systems Corporation Magnetic resonance imaging apparatus for supplying power to gradient coils

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5320103A (en) 1987-10-07 1994-06-14 Advanced Techtronics, Inc. Permanent magnet arrangement
US5406205A (en) 1989-11-08 1995-04-11 Bruker Analytische Messtechnik Gmbh Gradient-generation system, nuclear spin tomograph, and process for the generation of images with a nuclear-spin tomograph
US5382904A (en) 1992-04-15 1995-01-17 Houston Advanced Research Center Structured coil electromagnets for magnetic resonance imaging and method for fabricating the same
JPH0678896A (ja) * 1992-09-02 1994-03-22 Toshiba Corp 磁気共鳴イメージング装置
CN1085767A (zh) * 1992-10-22 1994-04-27 广东威达医疗器械集团公司 均匀磁场装置
US5311135A (en) * 1992-12-11 1994-05-10 General Electric Company Multiple tap gradient field coil for magnetic resonance imaging
US5378988A (en) 1993-01-22 1995-01-03 Pulyer; Yuly M. MRI system having high field strength open access magnet
US5633587A (en) 1995-02-14 1997-05-27 Kabushiki Kaisha Toshiba Magnetostatic field generating magnet for use in an MRI system having an active magnetic shield
JP3143371B2 (ja) 1995-09-19 2001-03-07 信越化学工業株式会社 磁気共鳴イメージング装置
US5713359A (en) 1995-10-02 1998-02-03 General Electric Company Magnetic resonance (MR) perfusion imaging in a low-field imaging magnet
EP0797103B1 (de) 1996-03-28 1999-06-02 Siemens Aktiengesellschaft Magnetanordnung für die bildgebende magnetische Resonanz mit zwei getrennten Abbildungsvolumina
US5696449A (en) 1996-06-03 1997-12-09 General Electric Company RF coil for open MR magnet
US6150911A (en) 1996-07-24 2000-11-21 Odin Technologies Ltd. Yoked permanent magnet assemblies for use in medical applications
US6249120B1 (en) 1998-07-22 2001-06-19 General Electric Company Modular timemasking sequence programming for imaging system
JP4191840B2 (ja) * 1999-02-15 2008-12-03 株式会社東芝 傾斜磁場コイル装置
DE19913124C1 (de) * 1999-03-23 2000-10-26 Siemens Ag Schaltbare longitudinale Gradientenspule
DE19917058C1 (de) * 1999-04-15 2000-10-19 Siemens Ag Schaltbare Gradientenspule auf der Basis von Sattelspulen
US6252405B1 (en) 1999-11-15 2001-06-26 General Electric Company Temperature compensated NMR magnet and method of operation therefor
US6538443B2 (en) * 2001-03-20 2003-03-25 Koninklijke Philips Electronics N.V. MRI gradient coil with variable field of view and apparatus and methods employing the same
JP2002291716A (ja) * 2001-03-30 2002-10-08 Hitachi Medical Corp 高次エンコーデイング傾斜磁場コイルを備えた磁気共鳴イメージング装置
US6479999B1 (en) 2001-06-05 2002-11-12 Koninklijke Philips Electronics N.V. Efficiently shielded MRI gradient coil with discretely or continuously variable field of view
US6703835B2 (en) 2002-04-11 2004-03-09 Ge Medical Systems Global Technology Co. Llc System and method for unwrapping phase difference images
US6630829B1 (en) 2002-04-22 2003-10-07 Ge Medical Systems Global Technology Co., Llc Gradient coil set capable of producing a variable field of view
US6680612B1 (en) * 2002-10-16 2004-01-20 Ge Medical Systems Global Technology Company, Llc Gradient coil apparatus for magnetic resonance imaging
US20040075434A1 (en) 2002-10-16 2004-04-22 Vavrek Robert Michael Gradient coil apparatus for magnetic resonance imaging
AU2003272029A1 (en) * 2002-11-20 2004-06-15 Koninklijke Philips Electronics N.V. Self-shielded gradient field coil for magnetic resonance imaging
WO2005043185A1 (en) * 2003-10-29 2005-05-12 Koninklijke Philips Electronics N.V. Variable field-of-view gradient coil system for magnetic resonance imaging

Also Published As

Publication number Publication date
JP2005199043A (ja) 2005-07-28
GB0425839D0 (en) 2004-12-29
GB2408583A (en) 2005-06-01
CN1647755A (zh) 2005-08-03
US20050110486A1 (en) 2005-05-26
GB2408583B (en) 2007-03-28
US6975116B2 (en) 2005-12-13
CN100435725C (zh) 2008-11-26
DE102004057028A1 (de) 2005-06-23

Similar Documents

Publication Publication Date Title
US8232802B2 (en) RF coil assembly for MRI using differently shaped and/or sized coils
JP5508906B2 (ja) 磁気共鳴イメージング装置およびｒｆコイル
JP2007511331A (ja) フェーズドアレイ膝部コイル
US20110156705A1 (en) Quadrature and linear rf coil array for mri of human spine and torso
US9335391B2 (en) Multichannel RF signal switching device and magnetic resonance imaging apparatus having multichannel RF signal switching device
US8188737B2 (en) MRI compatible radio frequency (RF) coil, with each rung of the RF coil containing a plurality of individual parallel wires internally
JP4381378B2 (ja) 磁気共鳴イメージング装置
JP4891539B2 (ja) 高周波コイルアセンブリ及び磁気共鳴撮像装置
JP6782562B2 (ja) 磁気共鳴画像化システムおよび方法
EP0959364A2 (en) Phased-array coil for MRI and signal processing circuit connected therewith
JP2000241519A (ja) 垂直磁場ｍｒｉ用のｒｆコイルアレイ装置
JP2004033774A (ja) ズームｍｒ画像を再構成するための方法及び装置
EP1411366A2 (en) Gradient coil set with variable field of view
JP4718112B2 (ja) 磁気共鳴イメージングのための勾配コイル装置
JP2005199043A (ja) 複数撮像領域傾斜コイルのための方法及び装置
US20100244835A1 (en) Thin extended-cavity rf coil for mri
JP5675044B2 (ja) 磁気共鳴イメージング装置
CN108020798B (zh) 用于对一个或多个受检者进行磁共振成像的系统和方法
JP2009061272A (ja) 撮像対象から磁気共鳴（ｍｒ）信号を受け取るためのシステム及び装置
JP5584384B2 (ja) 並列ｒｆ送信による空間−スペクトル励起のための方法及びシステム
JP2008178453A (ja) 磁気共鳴イメージング装置及び受信コイルアセンブリ
JP4542357B2 (ja) Ｒｆコイルおよびｍｒｉ装置
JP4349648B2 (ja) 磁気共鳴イメージング装置とその受信コイル
JP4180412B2 (ja) 磁場形成装置および磁気共鳴撮影装置
JP2005193056A (ja) 磁気共鳴イメージングのための方法及び装置

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20071121

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20091030

RD02 Notification of acceptance of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7422

Effective date: 20091030

RD04 Notification of resignation of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7424

Effective date: 20091030

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20100913

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20100921

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20101125

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20110510

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20110524

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140603

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

LAPS Cancellation because of no payment of annual fees