DE69027879T2 - Multi-Echo-NMR-Abbildungsverfahren - Google Patents

Multi-Echo-NMR-Abbildungsverfahren

Info

Publication number
DE69027879T2
DE69027879T2 DE1990627879 DE69027879T DE69027879T2 DE 69027879 T2 DE69027879 T2 DE 69027879T2 DE 1990627879 DE1990627879 DE 1990627879 DE 69027879 T DE69027879 T DE 69027879T DE 69027879 T2 DE69027879 T2 DE 69027879T2
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
Application number
DE1990627879
Other languages
English (en)
Other versions
DE69027879D1 (de
Inventor
Tatsuo Nozokido
Etsuji Yamamoto
Hideki Kohno
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Healthcare Manufacturing Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Publication of DE69027879D1 publication Critical patent/DE69027879D1/de
Application granted granted Critical
Publication of DE69027879T2 publication Critical patent/DE69027879T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
DE1990627879 1989-03-31 1990-03-29 Multi-Echo-NMR-Abbildungsverfahren Expired - Fee Related DE69027879T2 (de)

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 DE69027879D1 (de) 1996-08-29
DE69027879T2 true 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)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10132274A1 (de) * 2001-07-04 2003-01-23 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

Families Citing this family (6)

* Cited by examiner, † Cited by third party
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
WO1995005610A1 (en) * 1993-08-13 1995-02-23 The Government Of The United States Of America As Represented By The Secretary, Department Of Health And Human Services 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
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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10132274A1 (de) * 2001-07-04 2003-01-23 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
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

Also Published As

Publication number Publication date
EP0390175A3 (de) 1991-07-17
DE69027879D1 (de) 1996-08-29
JP2791091B2 (ja) 1998-08-27
JPH02257935A (ja) 1990-10-18
EP0390175A2 (de) 1990-10-03
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