JP3934010B2 - 開放型mri装置の磁場均一度調整方法 - Google Patents
開放型mri装置の磁場均一度調整方法 Download PDFInfo
- Publication number
- JP3934010B2 JP3934010B2 JP2002242147A JP2002242147A JP3934010B2 JP 3934010 B2 JP3934010 B2 JP 3934010B2 JP 2002242147 A JP2002242147 A JP 2002242147A JP 2002242147 A JP2002242147 A JP 2002242147A JP 3934010 B2 JP3934010 B2 JP 3934010B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic field
- space
- uniformity
- adjusting
- adjustment
- 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
Links
- 238000000034 method Methods 0.000 title claims description 33
- 238000002595 magnetic resonance imaging Methods 0.000 claims description 49
- 230000003068 static effect Effects 0.000 claims description 44
- 238000007689 inspection Methods 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 4
- 238000005259 measurement Methods 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 41
- 238000005481 NMR spectroscopy Methods 0.000 description 25
- 229910052742 iron Inorganic materials 0.000 description 20
- 239000000523 sample Substances 0.000 description 13
- 230000004907 flux Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000696 magnetic material Substances 0.000 description 4
- 238000003384 imaging method Methods 0.000 description 3
- 238000010348 incorporation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 210000000577 adipose tissue Anatomy 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000000747 cardiac effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Magnetic Resonance Imaging Apparatus (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002242147A JP3934010B2 (ja) | 2002-08-22 | 2002-08-22 | 開放型mri装置の磁場均一度調整方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002242147A JP3934010B2 (ja) | 2002-08-22 | 2002-08-22 | 開放型mri装置の磁場均一度調整方法 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2004073752A JP2004073752A (ja) | 2004-03-11 |
| JP2004073752A5 JP2004073752A5 (enExample) | 2005-07-07 |
| JP3934010B2 true JP3934010B2 (ja) | 2007-06-20 |
Family
ID=32024420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002242147A Expired - Fee Related JP3934010B2 (ja) | 2002-08-22 | 2002-08-22 | 開放型mri装置の磁場均一度調整方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3934010B2 (enExample) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5670037B2 (ja) * | 2009-09-28 | 2015-02-18 | 株式会社日立メディコ | 静磁場測定器 |
| IT1397713B1 (it) * | 2010-01-22 | 2013-01-24 | Esaote Spa | Macchina per risonanza magnetica nucleare con mezzi per la correzione dell'omogeneità del campo magnetico. |
| CN113466765B (zh) * | 2020-03-31 | 2024-12-10 | 通用电气精准医疗有限责任公司 | 磁共振扫描方法及系统、计算机可读存储介质 |
| JP7612495B2 (ja) * | 2021-04-19 | 2025-01-14 | 株式会社日立ハイテク | 磁極造形方法、磁場調整装置、加速器および粒子線治療システム |
-
2002
- 2002-08-22 JP JP2002242147A patent/JP3934010B2/ja not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2004073752A (ja) | 2004-03-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4037272B2 (ja) | 磁気共鳴イメージング装置及びそれに用いられる静磁場発生装置 | |
| CN104422915B (zh) | 用匀场线圈用于磁共振系统的患者适应的b0均匀化方法 | |
| US20070279060A1 (en) | Dynamic Shimset Calibration for Bo Offset | |
| CN102998642B (zh) | 磁共振设备内检查对象的部分区域的成像方法 | |
| US10156619B2 (en) | Magnetic resonance imaging system, static magnetic field homogeneity adjusting system, magnetic field homogeneity adjusting method, and magnetic field homogeneity adjusting program | |
| RU2716870C2 (ru) | Система магнитно-резонансных исследований, имеющая зонды для исследования поля | |
| US6799366B2 (en) | Magnetic resonance imaging apparatus assembly method | |
| JP6308794B2 (ja) | パルス状の補償傾斜磁場を有するmr装置 | |
| US11209513B2 (en) | Method and system for compensating stray magnetic fields in a magnetic resonance imaging system | |
| JP2005515051A (ja) | Mr装置用のコイルシステム及び上記コイルシステムを具備するmr装置 | |
| US10379183B2 (en) | Magnetic moment arrangement calculation method for magnetic field adjustment, magnetic field adjustment device and program | |
| JPS62189056A (ja) | 磁界の均質性を改善する方法 | |
| JP2006518242A (ja) | Mriシステムの振動による磁界の乱れの補償 | |
| JP2004073752A (ja) | 開放型mri装置の磁場均一度調整方法 | |
| CN113466765B (zh) | 磁共振扫描方法及系统、计算机可读存储介质 | |
| JP5670037B2 (ja) | 静磁場測定器 | |
| US9182465B2 (en) | MRT gradient system with integrated main magnetic field generation | |
| US20030094949A1 (en) | Method for calculating conductor paths in a switched gradient coil system, and magnetic resonance tomography apparatus employing such a switched gradient coil system | |
| JP3887082B2 (ja) | 磁気共鳴イメージング装置 | |
| WO1998042256A1 (fr) | Dispositif d'inspection a resonance magnetique | |
| JP4107799B2 (ja) | Mri装置 | |
| JP4528389B2 (ja) | 磁気共鳴診断装置 | |
| JP3748657B2 (ja) | 磁気共鳴検査装置 | |
| JPH05300896A (ja) | 磁気共鳴イメージング装置 | |
| JP2002263080A (ja) | 磁気共鳴イメージング装置 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20041029 |
|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20041029 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20060822 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20061019 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20061128 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20070129 |
|
| 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: 20070313 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20070314 |
|
| 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: 20110330 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110330 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130330 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20140330 Year of fee payment: 7 |
|
| 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 |