ATE64472T1 - Nichtharmonische nmr-spin-echo-bildgebung. - Google Patents
Nichtharmonische nmr-spin-echo-bildgebung.Info
- Publication number
- ATE64472T1 ATE64472T1 AT86304287T AT86304287T ATE64472T1 AT E64472 T1 ATE64472 T1 AT E64472T1 AT 86304287 T AT86304287 T AT 86304287T AT 86304287 T AT86304287 T AT 86304287T AT E64472 T1 ATE64472 T1 AT E64472T1
- Authority
- AT
- Austria
- Prior art keywords
- radio frequency
- frequency signal
- subject
- applying
- predetermined time
- Prior art date
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
- G01R33/4818—MR characterised by data acquisition along a specific k-space trajectory or by the temporal order of k-space coverage, e.g. centric or segmented coverage of k-space
- G01R33/482—MR characterised by data acquisition along a specific k-space trajectory or by the temporal order of k-space coverage, e.g. centric or segmented coverage of k-space using a Cartesian trajectory
-
- 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
- G01R33/56554—Correction of image distortions, e.g. due to magnetic field inhomogeneities caused by acquiring plural, differently encoded echo signals after one RF excitation, e.g. correction for readout gradients of alternating polarity in EPI
Landscapes
- Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General 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)
- Magnetic Resonance Imaging Apparatus (AREA)
- Transforming Light Signals Into Electric Signals (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/742,161 US4695800A (en) | 1985-06-06 | 1985-06-06 | Non harmonic NMR spin echo imaging |
EP86304287A EP0204569B1 (de) | 1985-06-06 | 1986-06-05 | Nichtharmonische NMR-Spin-Echo-Bildgebung |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE64472T1 true ATE64472T1 (de) | 1991-06-15 |
Family
ID=24983723
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT86304287T ATE64472T1 (de) | 1985-06-06 | 1986-06-05 | Nichtharmonische nmr-spin-echo-bildgebung. |
Country Status (5)
Country | Link |
---|---|
US (1) | US4695800A (de) |
EP (1) | EP0204569B1 (de) |
JP (1) | JP2641426B2 (de) |
AT (1) | ATE64472T1 (de) |
DE (1) | DE3679719D1 (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL8700266A (nl) * | 1987-02-04 | 1988-09-01 | Philips Nv | Werkwijze en inrichting voor het onderdrukken van coherente storingen bij magnetische resonantiesignalen. |
JP2735191B2 (ja) * | 1987-07-22 | 1998-04-02 | 株式会社東芝 | 磁気共鳴イメージング装置 |
US5144236A (en) * | 1990-08-17 | 1992-09-01 | Strenk Scientific Consultants, Inc. | Method and apparatus for r.f. tomography |
DE4319031C2 (de) * | 1992-06-12 | 1996-05-30 | Rieter Ingolstadt Spinnerei | Wickelvorrichtung |
GB9217718D0 (en) * | 1992-08-20 | 1992-09-30 | British Tech Group | Method of and apparatus for nmr testing |
AU4836396A (en) | 1995-02-24 | 1996-09-11 | British Technology Group Limited | Method of and apparatus for nuclear quadrupole resonance testing a sample, and pulse sequence for exciting nuclear quadrupole resonance |
DE19511794B4 (de) * | 1995-03-30 | 2005-12-29 | Siemens Ag | Verfahren zur Gewinnung von Bilddaten in einem Kernspintomographiegerät und Kernspintomographiegerät zur Durchführung des Verfahrens |
US7164268B2 (en) * | 2000-12-21 | 2007-01-16 | University Of Virginia Patent Foundation | Method and apparatus for spin-echo-train MR imaging using prescribed signal evolutions |
USRE45725E1 (en) | 2000-12-21 | 2015-10-06 | University Of Virginia Patent Foundation | Method and apparatus for spin-echo-train MR imaging using prescribed signal evolutions |
US11047815B2 (en) * | 2018-05-11 | 2021-06-29 | Arcady Reiderman | Method and apparatus for nuclear magnetic resonance measurements on borehole materials |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4297637A (en) * | 1978-07-20 | 1981-10-27 | The Regents Of The University Of California | Method and apparatus for mapping lines of nuclear density within an object using nuclear magnetic resonance |
US4318043A (en) * | 1978-07-20 | 1982-03-02 | The Regents Of The University Of California | Method and apparatus for rapid NMR imaging of nuclear densities within an object |
US4431968A (en) * | 1982-04-05 | 1984-02-14 | General Electric Company | Method of three-dimensional NMR imaging using selective excitation |
US4443760A (en) * | 1982-07-01 | 1984-04-17 | General Electric Company | Use of phase alternated RF pulses to eliminate effects of spurious free induction decay caused by imperfect 180 degree RF pulses in NMR imaging |
US4484138A (en) * | 1982-07-01 | 1984-11-20 | General Electric Company | Method of eliminating effects of spurious free induction decay NMR signal caused by imperfect 180 degrees RF pulses |
US4521733A (en) * | 1983-05-23 | 1985-06-04 | General Electric Company | NMR Imaging of the transverse relaxation time using multiple spin echo sequences |
US4549140A (en) * | 1983-06-03 | 1985-10-22 | General Electric Company | Method utilizing combined, interleaved pulse sequences for reducing motion artifacts in computed T1,T2 and M0 NMR imaging |
US4549139A (en) * | 1983-06-03 | 1985-10-22 | General Electric Company | Method of accurate and rapid NMR imaging of computed T1 and spin density |
US4574239A (en) * | 1983-07-19 | 1986-03-04 | The Regents Of The University Of California | Method for flow measurement using nuclear magnetic resonance |
US4613949A (en) * | 1984-02-17 | 1986-09-23 | General Electric Company | Composite pulses for time reversal in NMR imaging |
US4628262A (en) * | 1985-02-05 | 1986-12-09 | Advanced Nmr Systems, Inc. | Multiple echo chemical shift imaging |
-
1985
- 1985-06-06 US US06/742,161 patent/US4695800A/en not_active Expired - Fee Related
-
1986
- 1986-06-05 DE DE8686304287T patent/DE3679719D1/de not_active Expired - Fee Related
- 1986-06-05 AT AT86304287T patent/ATE64472T1/de not_active IP Right Cessation
- 1986-06-05 EP EP86304287A patent/EP0204569B1/de not_active Expired - Lifetime
- 1986-06-06 JP JP61130428A patent/JP2641426B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0204569A2 (de) | 1986-12-10 |
EP0204569A3 (en) | 1988-03-09 |
JP2641426B2 (ja) | 1997-08-13 |
DE3679719D1 (de) | 1991-07-18 |
US4695800A (en) | 1987-09-22 |
JPS6241648A (ja) | 1987-02-23 |
EP0204569B1 (de) | 1991-06-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE3482336D1 (de) | Geraet zur bilderzeugung mittels magnetischer kernresonanz. | |
DE3673860D1 (de) | Lokale sonde zur anwendung bei der bilderzeugung mittels magnetischer kernresonanz. | |
FR2546642B1 (fr) | Procede de generation d'images du temps de relaxation transversale en resonance magnetique nucleaire, par l'utilisation de sequences d'echos de spin multiples | |
DE3482283D1 (de) | Vorrichtung und verfahren zur abbildung von blutgefaessen mittels magnetischer kernresonanz. | |
IT1093167B (it) | Trasduttore di segnali di risonanza magnetica nucleare | |
DE3779715D1 (de) | Vorrichtung zur erzeugung eines magnetfeldes fuer rechnergesteuerte tomographie mittels magnetischer kernresonanz. | |
DE3483014D1 (de) | Verfahren und vorrichtung zur schnellen bilderzeugung mittels magnetischer kernresonanz. | |
EP0201277A3 (de) | Apparat und Verfahren zur Bilderzeugung mittels magnetischer Resonanz | |
GB2026172B (en) | Method and apparatus for determining the relative densities of nuclei within an object using nuclear magnetic resonance | |
SE8701054L (sv) | Magnetisk resonansanalys av substanser i prover, vilka inkluderar dissipativt material | |
DE3751909D1 (de) | Schnelles Bilderzeugungssystem mittels magnetischer Kernresonanz | |
DE3484845D1 (de) | Einrichtung und verfahren zur bilderzeugung mittels magnetischer kernresonanz mit aussermittigem zoom-abtasten. | |
DE3484024D1 (de) | Verfahren und vorrichtung zur bilderzeugung mittels magnetischer kernresonanz. | |
JPS6462148A (en) | Method and apparatus for magnetic resonance imaging | |
ATE64472T1 (de) | Nichtharmonische nmr-spin-echo-bildgebung. | |
EP0103372A3 (de) | Kernmagnetische Resonanzmethode und -Vorrichtung | |
FR2583172B1 (fr) | Antenne haute frequence pour appareil mesurant la resonance magnetique nucleaire | |
ES2023635B3 (es) | Metodo y aparato de formacion de imagenes por resonancia magnetica. | |
DE3677344D1 (de) | Spule fuer diagnostikgeraet zur bilderzeugung mittels magnetischer kernresonanz. | |
SE8800767D0 (sv) | Nmr-apparat for undersokning av en kropp, serskilt for avbildning av menniskokroppens hud, och anordning for alstring av en magnetfeltsgradient i en sadan apparat | |
DE3763258D1 (de) | Verfahren zur bilderzeugung mittels magnetischer resonanz und vorrichtung zur bestimmung des flipwinkels eines elektromagnetischen pulses hoher frequenz. | |
DE3781869D1 (de) | Schnelles abbildungsverfahren mittels magnetischer kernresonanz. | |
DE69026976D1 (de) | Verfahren und Vorrichtung zur Bilderzeugung in kurzer Echo-Zeit mittels magnetischer Resonanz | |
ATE76200T1 (de) | Verfahren und apparat zur bilderzeugung mittels magnetischer kernresonanz. | |
DE3669783D1 (de) | Verfahren und vorrichtung zur bilderzeugung mittels magnetischer kernresonanz. |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |