DE3580850D1 - Verfahren und vorrichtung fuer nuklear-magnetische-resonanz zur bildaufnahme im querschnitt. - Google Patents
Verfahren und vorrichtung fuer nuklear-magnetische-resonanz zur bildaufnahme im querschnitt.Info
- Publication number
- DE3580850D1 DE3580850D1 DE8585903374T DE3580850T DE3580850D1 DE 3580850 D1 DE3580850 D1 DE 3580850D1 DE 8585903374 T DE8585903374 T DE 8585903374T DE 3580850 T DE3580850 T DE 3580850T DE 3580850 D1 DE3580850 D1 DE 3580850D1
- Authority
- DE
- Germany
- Prior art keywords
- nuclear
- resonance
- magnetic
- cross
- section
- 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 - Lifetime
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
-
- 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)
- 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)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59137004A JPS6117054A (ja) | 1984-07-03 | 1984-07-03 | 核磁気共鳴断層撮影装置 |
PCT/JP1985/000370 WO1986000706A1 (en) | 1984-07-03 | 1985-07-02 | Method and apparatus for nuclear magnetic resonance for taking picture of cross section |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3580850D1 true DE3580850D1 (de) | 1991-01-17 |
Family
ID=15188550
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8585903374T Expired - Lifetime DE3580850D1 (de) | 1984-07-03 | 1985-07-02 | Verfahren und vorrichtung fuer nuklear-magnetische-resonanz zur bildaufnahme im querschnitt. |
Country Status (5)
Country | Link |
---|---|
US (1) | US4694251A (de) |
EP (1) | EP0218726B1 (de) |
JP (1) | JPS6117054A (de) |
DE (1) | DE3580850D1 (de) |
WO (1) | WO1986000706A1 (de) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62103555A (ja) * | 1985-10-31 | 1987-05-14 | Yokogawa Medical Syst Ltd | Nmrイメ−ジング装置 |
US4833407A (en) * | 1987-06-24 | 1989-05-23 | Picker International, Inc. | Scan time reduction using conjugate symmetry and recalled echo |
US4851779A (en) * | 1987-08-14 | 1989-07-25 | Picker International, Inc. | Three dimensional volume imaging with conjugate symmetrization |
US4780675A (en) * | 1987-08-14 | 1988-10-25 | Picker International, Inc. | Conjugate symmetry magnetic resonance imaging |
US4912413A (en) * | 1987-08-14 | 1990-03-27 | Picker International, Inc. | Conjugate symmetry magnetic resonance imaging |
US4885549A (en) * | 1988-11-30 | 1989-12-05 | General Electric Company | Method of phase and amplitude correction of NMR signals using a reference marker |
EP0401429A1 (de) * | 1989-06-07 | 1990-12-12 | Koninklijke Philips Electronics N.V. | Verfahren und Vorrichtung zur Bilderzeugung in kurzer Echo-Zeit mittels magnetischer Resonanz |
EP0401908B1 (de) * | 1989-06-07 | 1996-05-15 | Koninklijke Philips Electronics N.V. | Verfahren und Vorrichtung zur Bilderzeugung in kurzer Echo-Zeit mittels magnetischer Resonanz |
US5168232A (en) * | 1990-06-29 | 1992-12-01 | General Electric Company | Method for rapid magnet shimming |
NL9002842A (nl) * | 1990-12-21 | 1992-07-16 | Philips Nv | Magnetische resonantie werkwijze en inrichting ter reductie van beeldfouten in een magnetisch resonantie beeld. |
US5321359A (en) * | 1993-03-29 | 1994-06-14 | General Electric Company | Selective imaging among three or more chemical species |
JP3701616B2 (ja) * | 2002-03-06 | 2005-10-05 | 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 | 磁気共鳴撮影装置 |
US10670679B2 (en) * | 2016-07-01 | 2020-06-02 | Canon Medical Systems Corporation | Magnetic resonance imaging apparatus and image processing apparatus |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1052861A (en) * | 1975-03-18 | 1979-04-17 | Varian Associates | Gyromagnetic resonance fourier transform zeugmatography |
EP0046782B2 (de) * | 1980-03-14 | 1991-01-09 | National Research Development Corporation | Verfahren zum ableiten von bildinformation von objekten |
JPS58188433A (ja) * | 1982-04-28 | 1983-11-02 | アロカ株式会社 | 超音波診断装置 |
JPS5934137A (ja) * | 1982-08-19 | 1984-02-24 | Shimadzu Corp | 核磁気共鳴映像法 |
JPS5938636A (ja) * | 1982-08-28 | 1984-03-02 | Toshiba Corp | 核磁気共鳴装置 |
NL8203519A (nl) * | 1982-09-10 | 1984-04-02 | Philips Nv | Werkwijze en inrichting voor het bepalen van een kernmagnetisatieverdeling in een deel van een lichaam. |
US4486709A (en) * | 1982-11-22 | 1984-12-04 | Bendall Max R | Depth and refocusing pulses for use with inhomogeneous radiofrequency coils in nuclear magnetic resonance spectroscopy |
US4532474A (en) * | 1983-09-09 | 1985-07-30 | General Electric Company | Nuclear magnetic resonance imaging using pulse sequences combining selective excitation and driven free precession |
JP3250676B2 (ja) * | 1992-07-23 | 2002-01-28 | ソニー株式会社 | 撮像装置 |
-
1984
- 1984-07-03 JP JP59137004A patent/JPS6117054A/ja active Granted
-
1985
- 1985-07-02 US US06/840,570 patent/US4694251A/en not_active Expired - Fee Related
- 1985-07-02 DE DE8585903374T patent/DE3580850D1/de not_active Expired - Lifetime
- 1985-07-02 EP EP85903374A patent/EP0218726B1/de not_active Expired
- 1985-07-02 WO PCT/JP1985/000370 patent/WO1986000706A1/ja active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
US4694251A (en) | 1987-09-15 |
EP0218726B1 (de) | 1990-12-05 |
JPH0315455B2 (de) | 1991-03-01 |
JPS6117054A (ja) | 1986-01-25 |
WO1986000706A1 (en) | 1986-01-30 |
EP0218726A1 (de) | 1987-04-22 |
EP0218726A4 (de) | 1988-03-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |