JP4047553B2 - 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
- JP4047553B2 JP4047553B2 JP2001122213A JP2001122213A JP4047553B2 JP 4047553 B2 JP4047553 B2 JP 4047553B2 JP 2001122213 A JP2001122213 A JP 2001122213A JP 2001122213 A JP2001122213 A JP 2001122213A JP 4047553 B2 JP4047553 B2 JP 4047553B2
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- JP
- Japan
- Prior art keywords
- image
- sensitivity
- coil
- magnetic resonance
- calculation
- 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
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- 238000002595 magnetic resonance imaging Methods 0.000 title claims description 18
- 230000035945 sensitivity Effects 0.000 claims description 70
- 238000003384 imaging method Methods 0.000 claims description 46
- 238000009826 distribution Methods 0.000 claims description 45
- 238000004364 calculation method Methods 0.000 claims description 32
- 239000011159 matrix material Substances 0.000 claims description 31
- 238000005259 measurement Methods 0.000 claims description 13
- 238000005481 NMR spectroscopy Methods 0.000 claims description 8
- 230000002194 synthesizing effect Effects 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 20
- 230000008569 process Effects 0.000 description 14
- 238000010586 diagram Methods 0.000 description 8
- 230000000877 morphologic effect Effects 0.000 description 8
- 238000001514 detection method Methods 0.000 description 5
- 239000000523 sample Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 210000001015 abdomen Anatomy 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000013421 nuclear magnetic resonance imaging Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000012491 analyte Substances 0.000 description 1
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- 230000008859 change Effects 0.000 description 1
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- 210000004351 coronary vessel Anatomy 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000005281 excited state Effects 0.000 description 1
- 238000002599 functional magnetic resonance imaging Methods 0.000 description 1
- 235000015220 hamburgers Nutrition 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000002610 neuroimaging Methods 0.000 description 1
- 238000001208 nuclear magnetic resonance pulse sequence Methods 0.000 description 1
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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
- G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
- G01R33/48—NMR imaging systems
- G01R33/54—Signal processing systems, e.g. using pulse sequences ; Generation or control of pulse sequences; Operator console
- G01R33/56—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution
- G01R33/561—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution by reduction of the scanning time, i.e. fast acquiring systems, e.g. using echo-planar pulse sequences
- G01R33/5611—Parallel magnetic resonance imaging, e.g. sensitivity encoding [SENSE], simultaneous acquisition of spatial harmonics [SMASH], unaliasing by Fourier encoding of the overlaps using the temporal dimension [UNFOLD], k-t-broad-use linear acquisition speed-up technique [k-t-BLAST], k-t-SENSE
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- High Energy & Nuclear Physics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001122213A JP4047553B2 (ja) | 2001-04-20 | 2001-04-20 | 磁気共鳴イメージング装置 |
| PCT/JP2002/001653 WO2002065907A1 (fr) | 2001-02-23 | 2002-02-25 | Procede et appareil d'imagerie par resonance magnetique |
| EP09014853A EP2159590A1 (en) | 2001-02-23 | 2002-02-25 | Magnetic resonance imaging apparatus and method |
| EP02703889A EP1371327A4 (en) | 2001-02-23 | 2002-02-25 | METHOD AND APPARATUS FOR MAGNETIC RESONANCE IMAGING |
| US10/468,963 US6876201B2 (en) | 2001-02-23 | 2002-02-25 | Magnetic resonance imaging apparatus and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001122213A JP4047553B2 (ja) | 2001-04-20 | 2001-04-20 | 磁気共鳴イメージング装置 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2002315731A JP2002315731A (ja) | 2002-10-29 |
| JP2002315731A5 JP2002315731A5 (enExample) | 2005-09-22 |
| JP4047553B2 true JP4047553B2 (ja) | 2008-02-13 |
Family
ID=18971956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001122213A Expired - Fee Related JP4047553B2 (ja) | 2001-02-23 | 2001-04-20 | 磁気共鳴イメージング装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4047553B2 (enExample) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4443079B2 (ja) | 2001-09-13 | 2010-03-31 | 株式会社日立メディコ | 磁気共鳴イメージング装置及び磁気共鳴イメージング装置用rf受信コイル |
| JP4068954B2 (ja) * | 2002-12-26 | 2008-03-26 | ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー | Mri装置 |
| JP3929047B2 (ja) * | 2003-04-24 | 2007-06-13 | 株式会社日立メディコ | 磁気共鳴イメージング装置 |
| US6919722B2 (en) * | 2003-10-09 | 2005-07-19 | Ge Medical Systems Global Technology Company, Llc | Image quality improvement for SENSE with low signal regions |
| JP4698231B2 (ja) * | 2004-06-11 | 2011-06-08 | 株式会社日立メディコ | 磁気共鳴診断装置 |
| JP4679158B2 (ja) * | 2004-10-08 | 2011-04-27 | 株式会社日立メディコ | 磁気共鳴イメージング装置 |
| WO2006109550A1 (ja) * | 2005-03-30 | 2006-10-19 | Hitachi Medical Corporation | 磁気共鳴イメージング装置及び方法 |
| WO2007047599A2 (en) * | 2005-10-18 | 2007-04-26 | Tursiop Technologies, Llc | Method and apparatus for high-gain magnetic resonance imaging |
| JP4980662B2 (ja) * | 2006-06-30 | 2012-07-18 | 株式会社日立メディコ | 磁気共鳴イメージング装置 |
| JP4817381B2 (ja) * | 2006-10-17 | 2011-11-16 | 株式会社日立メディコ | 磁気共鳴イメージング装置 |
| JP5156958B2 (ja) * | 2007-07-17 | 2013-03-06 | 株式会社日立メディコ | 磁気共鳴イメージング装置 |
| JP5686533B2 (ja) * | 2009-07-10 | 2015-03-18 | 株式会社東芝 | 磁気共鳴イメージング装置、画像処理装置および画像処理方法 |
| US9864032B2 (en) * | 2010-01-05 | 2018-01-09 | National Health Research Institutes | Magnetic resonance imaging system |
| DE102011088828B4 (de) * | 2011-12-16 | 2013-08-29 | Siemens Aktiengesellschaft | Erstellung eines MR-Bildes eines Untersuchungsobjekts unter Verwendung einer für ein Empfangsspulenelement erstellten Maske |
| US10534060B2 (en) | 2013-06-10 | 2020-01-14 | Toshiba Medical Systems Corporation | Parallel MRI with spatially misregistered signal |
| JP6518559B2 (ja) * | 2015-09-18 | 2019-05-22 | 株式会社日立製作所 | 磁気共鳴イメージング装置、及び方法 |
| JP7608268B2 (ja) | 2021-05-20 | 2025-01-06 | 富士フイルム株式会社 | 磁気共鳴撮影装置及び感度分布算出プログラム |
-
2001
- 2001-04-20 JP JP2001122213A patent/JP4047553B2/ja not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2002315731A (ja) | 2002-10-29 |
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