JP4494732B2 - 感度エンコーディング磁気共鳴イメージングの方法及びシステム - Google Patents
感度エンコーディング磁気共鳴イメージングの方法及びシステム Download PDFInfo
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- JP4494732B2 JP4494732B2 JP2003186246A JP2003186246A JP4494732B2 JP 4494732 B2 JP4494732 B2 JP 4494732B2 JP 2003186246 A JP2003186246 A JP 2003186246A JP 2003186246 A JP2003186246 A JP 2003186246A JP 4494732 B2 JP4494732 B2 JP 4494732B2
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- 230000035945 sensitivity Effects 0.000 title claims description 133
- 238000000034 method Methods 0.000 title claims description 44
- 238000002595 magnetic resonance imaging Methods 0.000 title claims description 17
- 238000005259 measurement Methods 0.000 claims description 26
- 238000004458 analytical method Methods 0.000 claims description 22
- 238000013213 extrapolation Methods 0.000 claims description 19
- 238000004364 calculation method Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 230000006870 function Effects 0.000 description 21
- 239000011159 matrix material Substances 0.000 description 21
- 238000003384 imaging method Methods 0.000 description 19
- 125000006850 spacer group Chemical group 0.000 description 8
- 230000033001 locomotion Effects 0.000 description 7
- 238000012937 correction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 238000012307 MRI technique Methods 0.000 description 1
- 206010038669 Respiratory arrest Diseases 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000002059 diagnostic imaging Methods 0.000 description 1
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- 238000011156 evaluation Methods 0.000 description 1
- 238000012886 linear function Methods 0.000 description 1
- 238000013178 mathematical model Methods 0.000 description 1
- 230000006798 recombination Effects 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
- G01R33/58—Calibration of imaging systems, e.g. using test probes, Phantoms; Calibration objects or fiducial markers such as active or passive RF coils surrounding an MR active material
- G01R33/583—Calibration of signal excitation or detection systems, e.g. for optimal RF excitation power or frequency
-
- 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
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- Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/064,309 US6836116B2 (en) | 2002-07-01 | 2002-07-01 | Sensitivity encoding magnetic resonance imaging method and system |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2004049907A JP2004049907A (ja) | 2004-02-19 |
| JP2004049907A5 JP2004049907A5 (enExample) | 2006-08-10 |
| JP4494732B2 true JP4494732B2 (ja) | 2010-06-30 |
Family
ID=29720374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2003186246A Expired - Lifetime JP4494732B2 (ja) | 2002-07-01 | 2003-06-30 | 感度エンコーディング磁気共鳴イメージングの方法及びシステム |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US6836116B2 (enExample) |
| EP (1) | EP1378760A3 (enExample) |
| JP (1) | JP4494732B2 (enExample) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7230429B1 (en) | 2004-01-23 | 2007-06-12 | Invivo Corporation | Method for applying an in-painting technique to correct images in parallel imaging |
| CN102385044B (zh) * | 2004-02-26 | 2014-12-10 | 株式会社东芝 | 磁共振成象装置及磁共振成象装置的数据处理方法 |
| 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 |
| WO2007121023A1 (en) * | 2006-04-13 | 2007-10-25 | Koninklijke Philips Electronics N.V. | Wave-propagation based estimation of coil sensitivities |
| EP2044454A1 (en) * | 2006-07-18 | 2009-04-08 | Koninklijke Philips Electronics N.V. | Artifact suppression in multi-coil mri |
| JP5931406B2 (ja) * | 2011-11-09 | 2016-06-08 | 株式会社東芝 | 磁気共鳴イメージング装置 |
| US20130289912A1 (en) | 2012-03-30 | 2013-10-31 | Siemens Aktiengesellschaft | Eigen-vector approach for coil sensitivity maps estimation |
| US10534060B2 (en) | 2013-06-10 | 2020-01-14 | Toshiba Medical Systems Corporation | Parallel MRI with spatially misregistered signal |
| CN106772167B (zh) * | 2016-12-01 | 2019-05-07 | 中国科学院深圳先进技术研究院 | 核磁共振成像方法及装置 |
| CN109407161B (zh) * | 2018-09-21 | 2020-11-10 | 中国自然资源航空物探遥感中心 | 用于提取地球物理磁异常场边界的磁场刻痕分析方法 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3032816A (en) * | 1957-11-07 | 1962-05-08 | Polymer Corp | Coating process and apparatus |
| GB9926918D0 (en) | 1999-11-15 | 2000-01-12 | Marconi Electronic Syst Ltd | Magnetic resonance imaging |
| GB9926923D0 (en) * | 1999-11-15 | 2000-01-12 | Marconi Electronic Syst Ltd | Magnetic resonance imaging |
| US6559642B2 (en) * | 2001-05-09 | 2003-05-06 | Ge Medical Systems Global Technology Company, Llc | Calibration method for use with sensitivity encoding MRI acquisition |
-
2002
- 2002-07-01 US US10/064,309 patent/US6836116B2/en not_active Expired - Lifetime
-
2003
- 2003-06-25 EP EP03254020A patent/EP1378760A3/en not_active Ceased
- 2003-06-30 JP JP2003186246A patent/JP4494732B2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP1378760A3 (en) | 2005-05-04 |
| EP1378760A2 (en) | 2004-01-07 |
| JP2004049907A (ja) | 2004-02-19 |
| US20040000906A1 (en) | 2004-01-01 |
| US6836116B2 (en) | 2004-12-28 |
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