JP4847641B2 - 磁石装置及び磁気共鳴イメージング装置 - Google Patents

磁石装置及び磁気共鳴イメージング装置 Download PDF

Info

Publication number
JP4847641B2
JP4847641B2 JP2000348437A JP2000348437A JP4847641B2 JP 4847641 B2 JP4847641 B2 JP 4847641B2 JP 2000348437 A JP2000348437 A JP 2000348437A JP 2000348437 A JP2000348437 A JP 2000348437A JP 4847641 B2 JP4847641 B2 JP 4847641B2
Authority
JP
Japan
Prior art keywords
magnetic field
coil
magnet
canceling
resonance imaging
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
JP2000348437A
Other languages
English (en)
Japanese (ja)
Other versions
JP2002143126A (ja
JP2002143126A5 (enExample
Inventor
弘隆 竹島
孝男 本名
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.)
Hitachi Healthcare Manufacturing Ltd
Original Assignee
Hitachi Medical Corp
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 Hitachi Medical Corp filed Critical Hitachi Medical Corp
Priority to JP2000348437A priority Critical patent/JP4847641B2/ja
Publication of JP2002143126A publication Critical patent/JP2002143126A/ja
Publication of JP2002143126A5 publication Critical patent/JP2002143126A5/ja
Application granted granted Critical
Publication of JP4847641B2 publication Critical patent/JP4847641B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Magnetic Resonance Imaging Apparatus (AREA)
JP2000348437A 2000-11-15 2000-11-15 磁石装置及び磁気共鳴イメージング装置 Expired - Fee Related JP4847641B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000348437A JP4847641B2 (ja) 2000-11-15 2000-11-15 磁石装置及び磁気共鳴イメージング装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000348437A JP4847641B2 (ja) 2000-11-15 2000-11-15 磁石装置及び磁気共鳴イメージング装置

Publications (3)

Publication Number Publication Date
JP2002143126A JP2002143126A (ja) 2002-05-21
JP2002143126A5 JP2002143126A5 (enExample) 2007-12-27
JP4847641B2 true JP4847641B2 (ja) 2011-12-28

Family

ID=18822032

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000348437A Expired - Fee Related JP4847641B2 (ja) 2000-11-15 2000-11-15 磁石装置及び磁気共鳴イメージング装置

Country Status (1)

Country Link
JP (1) JP4847641B2 (enExample)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4212331B2 (ja) 2002-10-24 2009-01-21 株式会社日立メディコ 磁気共鳴イメージング装置及び超電導磁石装置
US7379287B2 (en) * 2003-10-23 2008-05-27 Matsushita Electric Industrial Co., Ltd. Shielding method and shielding apparatus
JP2008002712A (ja) * 2006-06-20 2008-01-10 Sumitomo Heavy Ind Ltd 蓄冷式冷凍機の駆動制御装置
JP5410022B2 (ja) * 2008-02-20 2014-02-05 株式会社日立メディコ 超電導磁石装置及びそれを用いた磁気共鳴イメージング装置
JP5175593B2 (ja) * 2008-03-31 2013-04-03 株式会社東芝 超電導コイル装置および超電導コイル異常検出装置ならびに超電導コイル装置運転方法
JP6048955B2 (ja) * 2012-12-12 2016-12-21 ニチコン株式会社 電磁石用電源装置
WO2018020879A1 (ja) * 2016-07-27 2018-02-01 株式会社日立製作所 超電導磁石装置、磁気共鳴撮像装置、mri誘導下放射線治療装置、および、手術室
CN109847195A (zh) * 2018-12-29 2019-06-07 佛山瑞加图医疗科技有限公司 用于磁共振引导的放疗系统的磁场补偿系统和方法
CN109847196B (zh) * 2018-12-29 2024-07-19 佛山瑞加图医疗科技有限公司 磁共振引导的放疗系统的磁场补偿系统和方法
DE102020211439B4 (de) * 2020-09-11 2022-05-12 Siemens Healthcare Gmbh Verfahren und Vorrichtung zur aktiven Unterdrückung von bei Magnetresonanzaufnahmen emittierten elektrischen und/oder magnetischen Feldern auf Grundlage eines angepassten Referenz- Feldprofils
JP7608118B2 (ja) * 2020-11-09 2025-01-06 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システムおよび電力供給制御方法
JP7593786B2 (ja) * 2020-11-09 2024-12-03 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及び超電導磁石の制御方法
JP7590192B2 (ja) * 2021-01-18 2024-11-26 住友重機械工業株式会社 超伝導磁石装置
CN116400774B (zh) * 2023-05-08 2025-09-16 北京航空航天大学 一种磁屏蔽舱剩余磁场发生装置及控制方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62221015A (ja) * 1986-03-20 1987-09-29 Toshiba Corp コンピユ−タシステム
JPH02159595A (ja) * 1988-12-13 1990-06-19 Fujita Corp 磁気シールドルーム用窓
JPH0718301B2 (ja) * 1989-01-13 1995-03-01 株式会社フジタ 磁気シールドルーム用扉
JP3377822B2 (ja) * 1993-03-05 2003-02-17 株式会社日立メディコ 磁気共鳴イメージング装置
JPH07100125A (ja) * 1993-10-12 1995-04-18 Hitachi Medical Corp 磁気共鳴イメージング装置
JPH09131341A (ja) * 1995-11-13 1997-05-20 Toshiba Corp X線診断装置
JPH11155243A (ja) * 1997-11-25 1999-06-08 Shin Kobe Electric Mach Co Ltd 無停電電源装置及び無停電電源装置を備えたコンピュータシステム
JP2000102520A (ja) * 1998-09-29 2000-04-11 Hitachi Medical Corp 磁気共鳴イメージング装置
JP2000278884A (ja) * 1999-03-25 2000-10-06 Fuji Xerox Co Ltd 画像形成装置

Also Published As

Publication number Publication date
JP2002143126A (ja) 2002-05-21

Similar Documents

Publication Publication Date Title
JP4847641B2 (ja) 磁石装置及び磁気共鳴イメージング装置
US7304478B2 (en) Magnetic resonance imaging apparatus provided with means for preventing closed loop circuit formation across and between inside and outside of cryostat
EP0770881B1 (en) Shielded and open MRI magnet
EP1761794B8 (en) Magnetic resonance imaging system with iron-assisted magnetic field gradient system
EP0676647B1 (en) Open MRI magnet
EP0817211B1 (en) Superconducting magnet device and magnetic resonance imaging device using the same
EP0317775A2 (en) Balanced self-shielded gradient coils
EP0826977B1 (en) Compact MRI superconducting magnet
EP1219971A2 (en) MR scanner including liquid cooled RF coil and method for cooling an RF coil
US8373417B2 (en) Method and device to detect failure of a magnetic resonance gradient coil by monitoring a supply cable thereof
WO2012091260A1 (ko) 자기장 상쇄 장치 및 자기장 상쇄 방법
JP4928477B2 (ja) 超電導磁石装置、およびこれを用いた磁気共鳴イメージング装置、並びに核磁気共鳴装置
US6960914B2 (en) Methods and apparatus for imaging systems
US6664876B2 (en) Superconducting magnet and magnetic resonance imaging apparatus using the same
JPH11164820A (ja) 超電導磁石
US5521571A (en) Open MRI magnet with uniform imaging volume
US20020130662A1 (en) Open type magnetic resonance imaging apparatus
JP4933122B2 (ja) 核磁気共鳴用プローブ
JP3977105B2 (ja) 開放型磁気共鳴イメージング装置
JP2002017705A (ja) 磁気共鳴イメージング装置
JP2023141209A (ja) 磁性体検知システム
JP2007335616A (ja) 超電導マグネット
JP3372098B2 (ja) 磁気共鳴イメージング装置用静磁場発生装置
JPH0438931A (ja) 核磁気共鳴装置
JP4304228B2 (ja) 磁気共鳴イメージング装置及び超電導磁石装置

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20071113

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20071113

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20101101

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20101202

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20110404

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20110520

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20110929

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: 20111014

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

Free format text: PAYMENT UNTIL: 20141021

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