JP4023703B2 - 磁気共鳴イメージング装置 - Google Patents
磁気共鳴イメージング装置 Download PDFInfo
- Publication number
- JP4023703B2 JP4023703B2 JP29013398A JP29013398A JP4023703B2 JP 4023703 B2 JP4023703 B2 JP 4023703B2 JP 29013398 A JP29013398 A JP 29013398A JP 29013398 A JP29013398 A JP 29013398A JP 4023703 B2 JP4023703 B2 JP 4023703B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic field
- shield
- coil
- resonance imaging
- cooling
- 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
- 238000002595 magnetic resonance imaging Methods 0.000 title claims description 24
- 230000005291 magnetic effect Effects 0.000 claims description 131
- 238000001816 cooling Methods 0.000 claims description 93
- 239000000463 material Substances 0.000 claims description 3
- 238000003384 imaging method Methods 0.000 claims description 2
- 230000005294 ferromagnetic effect Effects 0.000 claims 1
- 239000003507 refrigerant Substances 0.000 description 11
- 239000003302 ferromagnetic material Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 230000004907 flux Effects 0.000 description 4
- 229910052734 helium Inorganic materials 0.000 description 4
- 239000001307 helium Substances 0.000 description 4
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000002887 superconductor Substances 0.000 description 1
Images
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- Magnetic Resonance Imaging Apparatus (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29013398A JP4023703B2 (ja) | 1998-09-29 | 1998-09-29 | 磁気共鳴イメージング装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29013398A JP4023703B2 (ja) | 1998-09-29 | 1998-09-29 | 磁気共鳴イメージング装置 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2000102519A JP2000102519A (ja) | 2000-04-11 |
| JP2000102519A5 JP2000102519A5 (enExample) | 2005-11-17 |
| JP4023703B2 true JP4023703B2 (ja) | 2007-12-19 |
Family
ID=17752228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29013398A Expired - Fee Related JP4023703B2 (ja) | 1998-09-29 | 1998-09-29 | 磁気共鳴イメージング装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4023703B2 (enExample) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6683456B1 (en) * | 2000-07-06 | 2004-01-27 | Koninklijke Philips Electronics, N.V. | MRI magnet with reduced fringe field |
| JP4266232B2 (ja) * | 2006-11-17 | 2009-05-20 | 株式会社日立製作所 | 超伝導磁石装置および磁気共鳴イメージング装置 |
-
1998
- 1998-09-29 JP JP29013398A patent/JP4023703B2/ja not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000102519A (ja) | 2000-04-11 |
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