DE3685259D1 - Verfahren zur bilderzeugung mittels magnetischer resonanz. - Google Patents

Verfahren zur bilderzeugung mittels magnetischer resonanz.

Info

Publication number: DE3685259D1
Authority: DE; Germany
Prior art keywords: magnetic resonance; generating images; images; generating; resonance
Prior art date: 1985-06-07
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

Application number

DE8686107549T

Other languages

English (en)

Inventor

Koichi Sano

Tetsuro Yokohama

Hideaki Koizumi

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.)

1985-06-07

Filing date

1986-06-03

Publication date

1992-06-17

1985-06-07 Priority claimed from JP60122422A external-priority patent/JPH0636790B2/ja

1985-07-19 Priority claimed from JP60158199A external-priority patent/JPS6219744A/ja

1986-06-03 Application filed by Hitachi Ltd filed Critical Hitachi Ltd

1992-06-17 Application granted granted Critical

1992-06-17 Publication of DE3685259D1 publication Critical patent/DE3685259D1/de

2006-06-04 Anticipated expiration legal-status Critical

Status Expired - Lifetime 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
- G01R33/54—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
- G01R33/56518—Correction of image distortions, e.g. due to magnetic field inhomogeneities due to eddy currents, e.g. caused by switching of the gradient magnetic field
- 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

DE8686107549T 1985-06-07 1986-06-03 Verfahren zur bilderzeugung mittels magnetischer resonanz. Expired - Lifetime DE3685259D1 (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
JP60122422A JPH0636790B2 (ja)	1985-06-07	1985-06-07	核磁気共鳴イメ−ジング静磁場分布測定方式
JP60158199A JPS6219744A (ja)	1985-07-19	1985-07-19	核磁気共鳴イメ−ジング方式

Publications (1)

Publication Number	Publication Date
DE3685259D1 true DE3685259D1 (de)	1992-06-17

Family

ID=26459547

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE8686107549T Expired - Lifetime DE3685259D1 (de)	1985-06-07	1986-06-03	Verfahren zur bilderzeugung mittels magnetischer resonanz.

Country Status (3)

Country	Link
US (1)	US4724388A (de)
EP (1)	EP0204320B1 (de)
DE (1)	DE3685259D1 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE3614142C2 (de) *	1985-04-26	1996-03-28	Toshiba Kawasaki Kk	Verwendung eines Materials für die Diagnose durch Kernresonanz-Spektroskopie
GB8615674D0 (en) *	1986-06-26	1986-07-30	Mansfield P	Electrical coils
GB8615854D0 (en) *	1986-06-28	1986-08-06	Turner R	Magnetic field coils
JPS6321048A (ja) *	1986-07-16	1988-01-28	横河メディカルシステム株式会社	核磁気共鳴画像の歪み補正方法
NL8602019A (nl) *	1986-08-07	1988-03-01	Philips Nv	Magnetische resonantiewerkwijze en -inrichting voor het elimineren van fasefouten in beeldelementen van een complexe afbeelding van een kernmagnetisatieverdeling.
JPH0814584B2 (ja) *	1986-12-22	1996-02-14	株式会社東芝	磁気共鳴イメ−ジング装置における流速測定方法
NL8701642A (nl) *	1987-07-13	1989-02-01	Philips Nv	Werkwijze en inrichting voor het uitvoeren van een fasecorrectie bij mr angiografie.
JP2598038B2 (ja) *	1987-09-30	1997-04-09	株式会社東芝	磁気共鳴映像装置
JP2642362B2 (ja) *	1987-09-30	1997-08-20	株式会社東芝	磁気共鳴映像装置
US4837513A (en) *	1988-04-14	1989-06-06	The Regents Of The University Of California	MRI using asymmetric RF nutation pulses and asymmetric synthesis of complex conjugated SE data to reduce TE and T2 decay NMR spin echo responses
JPH04364829A (ja) *	1990-02-15	1992-12-17	Toshiba Corp	磁気共鳴画像処理方法及び装置
JPH03292934A (ja) *	1990-04-09	1991-12-24	Hitachi Medical Corp	核磁気共鳴を用いた検査方法
EP0577188B1 (de) *	1992-06-29	1999-09-01	Koninklijke Philips Electronics N.V.	Verfahren und Gerät zur Kernresonanzabbildung
DE69326202T2 (de) *	1992-06-29	2000-04-13	Koninkl Philips Electronics Nv	Verfahren und Gerät zur Kernresonanzabbildung
RU186685U1 (ru) *	2018-08-27	2019-01-29	Федеральное государственное бюджетное учреждение науки "Федеральный исследовательский центр "Казанский научный центр Российской академии наук"	Датчик для измерения объемного распределения магнитного поля

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3824452A (en) *	1971-04-08	1974-07-16	Varian Associates	Fourier transform nuclear magnetic resonance spectrometer employing means for generating random pulse intervals to avoid anomalies due to net transverse magnetization
US3968424A (en) *	1974-08-01	1976-07-06	Varian Associates	Fourier transform NMR spectroscopy employing a phase modulated rf carrier
JPS5938636A (ja) *	1982-08-28	1984-03-02	Toshiba Corp	核磁気共鳴装置
JPS59148854A (ja) *	1983-02-14	1984-08-25	Hitachi Ltd	核磁気共鳴を用いた検査装置
FI833807A (fi) *	1983-06-23	1984-12-24	Instrumentarium Oy	Foerfarande foer utredning av aemnets eller magnetfaeltets egenskaper.
US4591789A (en) *	1983-12-23	1986-05-27	General Electric Company	Method for correcting image distortion due to gradient nonuniformity

1986
- 1986-06-02 US US06/869,976 patent/US4724388A/en not_active Expired - Lifetime
- 1986-06-03 DE DE8686107549T patent/DE3685259D1/de not_active Expired - Lifetime
- 1986-06-03 EP EP86107549A patent/EP0204320B1/de not_active Expired - Lifetime

Also Published As

Publication number	Publication date
US4724388A (en)	1988-02-09
EP0204320B1 (de)	1992-05-13
EP0204320A3 (en)	1989-07-26
EP0204320A2 (de)	1986-12-10

Similar Documents

Publication	Publication Date	Title
DE3482336D1 (de)	1990-06-28	Geraet zur bilderzeugung mittels magnetischer kernresonanz.
DE68924753T2 (de)	1996-07-18	Verfahren zur Multischicht-Bilderzeugung mittels magnetischer Kernresonanz.
DE3483014D1 (de)	1990-09-27	Verfahren und vorrichtung zur schnellen bilderzeugung mittels magnetischer kernresonanz.
DE3484024D1 (de)	1991-03-07	Verfahren und vorrichtung zur bilderzeugung mittels magnetischer kernresonanz.
DE3769956D1 (de)	1991-06-13	Vorrichtung zur bilderzeugung mittels magnetischer resonanz mit einem quadratur-spulensystem.
DE3482283D1 (de)	1990-06-21	Vorrichtung und verfahren zur abbildung von blutgefaessen mittels magnetischer kernresonanz.
DE3685461D1 (de)	1992-07-02	Verfahren zur bildung eines bildes.
DE3750046T2 (de)	1995-01-26	Angiographisches Verfahren mittels magnetischer Kernresonanz und Gerät zur Durchführung dieses Verfahrens.
DE3750853D1 (de)	1995-01-26	Verfahren zur Bildsignalkodierung mittels Orthogonal-Transformation.
DE3583316D1 (de)	1991-08-01	Verfahren zur bilderzeugung mit hoher raeumlicher aufloesung mittels chemischer verschiebung der magnetischen kernresonanzspektren von kernarten.
DE3685259D1 (de)	1992-06-17	Verfahren zur bilderzeugung mittels magnetischer resonanz.
DE3874964T2 (de)	1993-02-18	Apparat zur magnet-resonanz-abbildung.
DE3668078D1 (de)	1990-02-08	Verfahren zur bilderzeugung.
DE68927874T2 (de)	1997-10-02	Vorrichtung zur Bilderzeugung mittels magnetischer Resonanz
DE3877972D1 (de)	1993-03-11	Vorrichtung zur bilderzeugung mittels magnetischer kernresonanz, verfahren zur korrektur der inhomogenitaet und fabrikationsverfahren von in der vorrichtung angewendeten magneten.
DE68927832D1 (de)	1997-04-10	Verfahren zur ermittlung von magnetischen resonanzsignalen
DE3789086D1 (de)	1994-03-24	Zusammengesetzte impulssequenz zur bilderzeugung mittels magnetischer kernresonanz.
DE69030002T2 (de)	1997-06-12	Verfahren zur bilderzeugung mittels magnetischer kernresonanz
DE3578588D1 (de)	1990-08-16	Vorrichtung mit trimmspulen-korrektur zur bilderzeugung mittels magnetischer resonanz.
DE3576406D1 (de)	1990-04-12	Apparat mittels magnetischer resonanz.
DE3669783D1 (de)	1990-04-26	Verfahren und vorrichtung zur bilderzeugung mittels magnetischer kernresonanz.
DE3684430D1 (de)	1992-04-23	Verfahren zur herstellung eines bildes.
DE3667542D1 (de)	1990-01-18	Verfahren zur bilderzeugung mittels magnetischer resonanz durch kleine anregungsimpulse.
DE3676908D1 (de)	1991-02-21	Verfahren zur gewinnung von dateninformationen der magnetischen kernresonanz.
DE3483857D1 (de)	1991-02-07	Verfahren und geraet zur bilderzeugung mittels magnetischer kernresonanz.

Legal Events

Date	Code	Title	Description
1993-06-09	8364	No opposition during term of opposition
1995-03-30	8327	Change in the person/name/address of the patent owner	Owner name: HITACHI MEDICAL CORP., TOKIO/TOKYO, JP
1995-03-30	8328	Change in the person/name/address of the agent	Free format text: BARDEHLE, H., DIPL.-ING. DOST, W., DIPL.-CHEM. DR.RER.NAT. ALTENBURG, U., DIPL.-PHYS., PAT.-ANWAELTE GEISSLER, B., DIPL.-PHYS.DR.JUR., PAT.- U. RECHTSANW. ROST, J., DIPL.-ING. DOSTERSCHILL, P., DIPL.-ING.DIPL.-WIRTSCH.-ING.DR.RER.POL., 81679 MUENCHEN KAHLHOEFER, H., DIPL.-PHYS., PAT.-ANWAELTE, 40474 DUESSELDORF PAGENBERG, J., DR.JUR. FROHWITTER, B., DIPL.-ING., RECHTSANWAELTE, 81679 MUENCHEN
2006-04-13	8339	Ceased/non-payment of the annual fee