JP4343726B2 - 磁気共鳴イメージング装置及び不整磁場補正方法 - Google Patents

磁気共鳴イメージング装置及び不整磁場補正方法 Download PDF

Info

Publication number
JP4343726B2
JP4343726B2 JP2004030577A JP2004030577A JP4343726B2 JP 4343726 B2 JP4343726 B2 JP 4343726B2 JP 2004030577 A JP2004030577 A JP 2004030577A JP 2004030577 A JP2004030577 A JP 2004030577A JP 4343726 B2 JP4343726 B2 JP 4343726B2
Authority
JP
Japan
Prior art keywords
magnetic field
correction
gradient magnetic
gradient
pulse
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
JP2004030577A
Other languages
English (en)
Japanese (ja)
Other versions
JP2004261591A5 (enrdf_load_stackoverflow
JP2004261591A (ja
Inventor
昇一 宮脇
博幸 竹内
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 JP2004030577A priority Critical patent/JP4343726B2/ja
Publication of JP2004261591A publication Critical patent/JP2004261591A/ja
Publication of JP2004261591A5 publication Critical patent/JP2004261591A5/ja
Application granted granted Critical
Publication of JP4343726B2 publication Critical patent/JP4343726B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Magnetic Resonance Imaging Apparatus (AREA)
JP2004030577A 2003-02-12 2004-02-06 磁気共鳴イメージング装置及び不整磁場補正方法 Expired - Fee Related JP4343726B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004030577A JP4343726B2 (ja) 2003-02-12 2004-02-06 磁気共鳴イメージング装置及び不整磁場補正方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2003033333 2003-02-12
JP2004030577A JP4343726B2 (ja) 2003-02-12 2004-02-06 磁気共鳴イメージング装置及び不整磁場補正方法

Publications (3)

Publication Number Publication Date
JP2004261591A JP2004261591A (ja) 2004-09-24
JP2004261591A5 JP2004261591A5 (enrdf_load_stackoverflow) 2006-05-11
JP4343726B2 true JP4343726B2 (ja) 2009-10-14

Family

ID=33133867

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004030577A Expired - Fee Related JP4343726B2 (ja) 2003-02-12 2004-02-06 磁気共鳴イメージング装置及び不整磁場補正方法

Country Status (1)

Country Link
JP (1) JP4343726B2 (enrdf_load_stackoverflow)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4763267B2 (ja) * 2004-11-08 2011-08-31 株式会社日立メディコ 磁気共鳴イメージング装置
JP4969933B2 (ja) * 2006-07-18 2012-07-04 株式会社日立メディコ 磁気共鳴イメージング装置
JP5502308B2 (ja) * 2007-12-20 2014-05-28 株式会社東芝 磁気共鳴イメージング装置
JP5883207B2 (ja) * 2007-12-28 2016-03-09 株式会社東芝 磁気共鳴イメージング装置および磁気共鳴イメージング装置の制御プログラム
JP5416960B2 (ja) 2008-12-17 2014-02-12 株式会社東芝 磁気共鳴イメージング装置
JP5666779B2 (ja) * 2009-01-27 2015-02-12 株式会社東芝 磁気共鳴イメージング装置
JP5559506B2 (ja) * 2009-10-07 2014-07-23 株式会社日立メディコ 磁気共鳴イメージング装置及び残留磁場抑制方法
JP6038654B2 (ja) 2010-08-26 2016-12-07 株式会社日立製作所 磁気共鳴イメージング装置及び振動誤差磁場低減方法
JP2012183233A (ja) 2011-03-07 2012-09-27 Toshiba Corp 磁気共鳴イメージング装置
WO2013002232A1 (ja) * 2011-06-30 2013-01-03 株式会社 日立メディコ 磁気共鳴イメージング装置及びその傾斜磁場出力波形の測定方法
EP3581955A1 (en) * 2018-06-12 2019-12-18 Koninklijke Philips N.V. Determination of higher order terms of the three-dimensional impulse response function of the magnetic field gradient system of a magnetic resonance imaging system
CN111623698B (zh) * 2020-05-22 2021-10-01 北京控制工程研究所 一种具有非线性校正功能的电涡流位移传感器电路
CN113296037A (zh) * 2021-05-21 2021-08-24 电子科技大学 一种高场磁共振梯度控制器
CN115831570A (zh) * 2021-09-16 2023-03-21 中国科学院苏州生物医学工程技术研究所 Halbach构型磁体的匀场方法
CN114814684B (zh) * 2022-06-23 2022-09-16 中科微影(浙江)医疗科技有限公司 小型核磁共振设备优化成像方法、装置、设备及介质

Also Published As

Publication number Publication date
JP2004261591A (ja) 2004-09-24

Similar Documents

Publication Publication Date Title
JP4106053B2 (ja) 磁気共鳴イメージング装置及び渦電流補償導出方法
JP4343726B2 (ja) 磁気共鳴イメージング装置及び不整磁場補正方法
KR101663365B1 (ko) 자기 공명 제어 시퀀스 결정
JP5184049B2 (ja) 磁気共鳴検査装置及び高周波パルス波形算出方法
JP5213849B2 (ja) 時間シーケンスのスピン励起による磁気共鳴
JP5718228B2 (ja) 磁気共鳴イメージング装置及び渦電流補償方法
US20140218031A1 (en) Magnetic resonance imaging apparatus and control method thereof
JP6038654B2 (ja) 磁気共鳴イメージング装置及び振動誤差磁場低減方法
US11150314B2 (en) Automatically optimized MR imaging with ultra-short echo times
JP2017530761A (ja) ゼロエコー時間mrイメージング
JP2013517829A (ja) 磁化率勾配マッピング
JP2010042275A (ja) 磁気共鳴イメージング装置及びその残留磁場の消磁方法
CN103969608A (zh) 采集磁共振数据和确定b1磁场的方法及磁共振设备
US10162027B2 (en) Magnetic resonance imaging apparatus and irradiation magnetic field distribution measurement method
CN114325525A (zh) 省时的基于具有激励的回波的双回波序列的b0图的产生
JP5177379B2 (ja) 磁気共鳴イメージング装置
US20230400545A1 (en) Spin echo mr imaging with spiral acquisition
JP5718148B2 (ja) 磁気共鳴イメージング装置及びDualSlice計測方法
JP5650044B2 (ja) 磁気共鳴イメージング装置
JP2004513720A (ja) 傾斜磁場の非線形性の補正を行う磁気共鳴撮像方法
JP5064685B2 (ja) 磁気共鳴イメージング装置
JP4969933B2 (ja) 磁気共鳴イメージング装置
JP6546837B2 (ja) 磁気共鳴イメージング装置、及び方法
JP4146735B2 (ja) 磁気共鳴イメージング装置
JP5460264B2 (ja) 磁気共鳴イメージング装置および磁気共鳴イメージング装置の動作制御方法

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20060314

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20060314

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20071211

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20090209

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20090323

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: 20090706

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: 20090709

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

Free format text: PAYMENT UNTIL: 20120717

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

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

Free format text: PAYMENT UNTIL: 20120717

Year of fee payment: 3

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

Free format text: PAYMENT UNTIL: 20130717

Year of fee payment: 4

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313111

S533 Written request for registration of change of name

Free format text: JAPANESE INTERMEDIATE CODE: R313533

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

LAPS Cancellation because of no payment of annual fees