DE69027879D1 - Multi-Echo-NMR-Abbildungsverfahren - Google Patents
Multi-Echo-NMR-AbbildungsverfahrenInfo
- Publication number
- DE69027879D1 DE69027879D1 DE69027879T DE69027879T DE69027879D1 DE 69027879 D1 DE69027879 D1 DE 69027879D1 DE 69027879 T DE69027879 T DE 69027879T DE 69027879 T DE69027879 T DE 69027879T DE 69027879 D1 DE69027879 D1 DE 69027879D1
- Authority
- DE
- Germany
- Prior art keywords
- imaging technique
- nmr imaging
- echo nmr
- echo
- technique
- 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
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
- G01R33/4828—Resolving the MR signals of different chemical species, e.g. water-fat imaging
-
- 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
- G01R33/483—NMR imaging systems with selection of signals or spectra from particular regions of the volume, e.g. in vivo spectroscopy
- G01R33/485—NMR imaging systems with selection of signals or spectra from particular regions of the volume, e.g. in vivo spectroscopy based on chemical shift information [CSI] or spectroscopic imaging, e.g. to acquire the spatial distributions of metabolites
-
- 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
- G01R33/565—Correction of image distortions, e.g. due to magnetic field inhomogeneities
- G01R33/56563—Correction of image distortions, e.g. due to magnetic field inhomogeneities caused by a distortion of the main magnetic field B0, e.g. temporal variation of the magnitude or spatial inhomogeneity of B0
Landscapes
- Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Optics & Photonics (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1078228A JP2791091B2 (ja) | 1989-03-31 | 1989-03-31 | 核磁気共鳴を用いた検査装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69027879D1 true DE69027879D1 (de) | 1996-08-29 |
DE69027879T2 DE69027879T2 (de) | 1997-02-20 |
Family
ID=13656191
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1990627879 Expired - Fee Related DE69027879T2 (de) | 1989-03-31 | 1990-03-29 | Multi-Echo-NMR-Abbildungsverfahren |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0390175B1 (de) |
JP (1) | JP2791091B2 (de) |
DE (1) | DE69027879T2 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5162737A (en) * | 1989-03-31 | 1992-11-10 | Hitachi, Ltd. | Multi-echo NMR imaging method |
DE3937428A1 (de) * | 1989-11-10 | 1991-05-16 | Philips Patentverwaltung | Kernspintomographieverfahren zur erzeugung getrennter fett- und wasserbilder und anordnung zur durchfuehrung des verfahrens |
AU7484694A (en) * | 1993-08-13 | 1995-03-14 | Government Of The United States Of America, As Represented By The Secretary Of The Department Of Health And Human Services, The | Method for magnetic resonance spectroscopic imaging with multiple spin-echoes |
US6016057A (en) * | 1998-04-17 | 2000-01-18 | General Electric Company | System and method for improved water and fat separation using a set of low resolution MR images |
DE10132274B4 (de) * | 2001-07-04 | 2004-01-15 | Siemens Ag | Trennung von Fett- und Wasserbildern durch das Zwei-Punkt-Dixon-Verfahren unter Berücksichtigung einer integrierten 3D-Feld-Messung zur Aufnahme einer Karte der Grundfeldinhomogenität |
JP3968353B2 (ja) * | 2004-02-18 | 2007-08-29 | 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 |
EP3336567B1 (de) * | 2017-07-24 | 2020-11-04 | Siemens Healthcare GmbH | Bestimmung von phasenverteilungen in mr-bildgebungsverfahren |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4628262A (en) * | 1985-02-05 | 1986-12-09 | Advanced Nmr Systems, Inc. | Multiple echo chemical shift imaging |
DE3543854A1 (de) * | 1985-12-12 | 1987-06-19 | Philips Patentverwaltung | Kernspintomographieverfahren und anordnung zur durchfuehrung des verfahrens |
JP2585278B2 (ja) * | 1987-07-22 | 1997-02-26 | 株式会社日立製作所 | 核磁気共鳴を用いた検査装置 |
-
1989
- 1989-03-31 JP JP1078228A patent/JP2791091B2/ja not_active Expired - Fee Related
-
1990
- 1990-03-29 DE DE1990627879 patent/DE69027879T2/de not_active Expired - Fee Related
- 1990-03-29 EP EP90106081A patent/EP0390175B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0390175A2 (de) | 1990-10-03 |
DE69027879T2 (de) | 1997-02-20 |
EP0390175A3 (de) | 1991-07-17 |
JPH02257935A (ja) | 1990-10-18 |
JP2791091B2 (ja) | 1998-08-27 |
EP0390175B1 (de) | 1996-07-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: HITACHI MEDICAL CORP., TOKIO/TOKYO, JP |
|
8339 | Ceased/non-payment of the annual fee |