ATE40471T1 - Bilderzeugung mittels magnetischer kernresonanz mit verminderter empfindlichkeit gegenueber bewegungen. - Google Patents

Bilderzeugung mittels magnetischer kernresonanz mit verminderter empfindlichkeit gegenueber bewegungen.

Info

Publication number
ATE40471T1
ATE40471T1 AT84307746T AT84307746T ATE40471T1 AT E40471 T1 ATE40471 T1 AT E40471T1 AT 84307746 T AT84307746 T AT 84307746T AT 84307746 T AT84307746 T AT 84307746T AT E40471 T1 ATE40471 T1 AT E40471T1
Authority
AT
Austria
Prior art keywords
movement
magnetic resonance
nuclear magnetic
resonance imaging
time
Prior art date
Application number
AT84307746T
Other languages
English (en)
Inventor
Russell Allen Compton
Original Assignee
Technicare Corp
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24200456&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE40471(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Technicare Corp filed Critical Technicare Corp
Application granted granted Critical
Publication of ATE40471T1 publication Critical patent/ATE40471T1/de

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
    • G01R33/561—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution by reduction of the scanning time, i.e. fast acquiring systems, e.g. using echo-planar pulse sequences
    • 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
    • G01R33/563—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution of moving material, e.g. flow contrast angiography

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • General Health & Medical Sciences (AREA)
  • Radiology & Medical Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Vascular Medicine (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
AT84307746T 1983-11-14 1984-11-09 Bilderzeugung mittels magnetischer kernresonanz mit verminderter empfindlichkeit gegenueber bewegungen. ATE40471T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/551,245 US4616180A (en) 1983-11-14 1983-11-14 Nuclear magnetic resonance imaging with reduced sensitivity to motional effects
EP84307746A EP0142343B1 (de) 1983-11-14 1984-11-09 Bilderzeugung mittels magnetischer Kernresonanz mit verminderter Empfindlichkeit gegenüber Bewegungen

Publications (1)

Publication Number Publication Date
ATE40471T1 true ATE40471T1 (de) 1989-02-15

Family

ID=24200456

Family Applications (1)

Application Number Title Priority Date Filing Date
AT84307746T ATE40471T1 (de) 1983-11-14 1984-11-09 Bilderzeugung mittels magnetischer kernresonanz mit verminderter empfindlichkeit gegenueber bewegungen.

Country Status (4)

Country Link
US (1) US4616180A (de)
EP (1) EP0142343B1 (de)
AT (1) ATE40471T1 (de)
DE (1) DE3476454D1 (de)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2586296B1 (fr) * 1985-08-13 1988-06-17 Thomson Cgr Procede de modulation de l'effet de la vitesse des parties mobiles d'un corps dans une mesure de densite par resonance magnetique nucleaire, et mise en oeuvre du procede pour en deduire la vitesse des parties mobiles concernees
EP0208601B1 (de) * 1985-06-27 1989-10-25 General Electric Cgr S.A. Abbildungsverfahren mittels der kernmagnetischen Resonanz
US4724386A (en) * 1985-09-30 1988-02-09 Picker International, Inc. Centrally ordered phase encoding
DE3673107D1 (de) * 1985-08-13 1990-09-06 Gen Electric Cgr Modulationsverfahren des geschwindigkeitseffekts von beweglichen teilchen eines koerpers in einer dichtemessung mittels der kernmagnetischen resonanz.
US4706026A (en) * 1985-08-16 1987-11-10 General Electric Company Method for reducing image artifacts due to periodic signal variations in NMR imaging
US4689560A (en) * 1985-08-16 1987-08-25 Picker International, Inc. Low R.F. dosage magnetic resonance imaging of high velocity flows
US4728890A (en) * 1985-08-16 1988-03-01 Picker International, Inc. Motion artifact suppression technique of magnetic resonance imaging
US4683431A (en) * 1985-08-16 1987-07-28 Picker International, Inc. Magnetic resonance imaging of high velocity flows
US4697149A (en) * 1985-11-04 1987-09-29 Wisconsin Alumni Research Foundation NMR flow imaging using a composite excitation field and magnetic field gradient sequence
US4731583A (en) * 1985-11-15 1988-03-15 General Electric Company Method for reduction of MR image artifacts due to flowing nuclei by gradient moment nulling
JPS62231647A (ja) * 1986-03-31 1987-10-12 株式会社東芝 磁気共鳴映像装置
DE3782265T2 (de) * 1986-04-05 1993-05-19 Nippon Electric Co Vielfach-zugriff-kommunikationssystem mit schaltungseinrichtung zur schleifenpruefung fuer das durchschalten von lokalen verbindungen.
US4777956A (en) * 1986-08-06 1988-10-18 Stanford University NMR angiography system and method with immunity to inhomogeneity
US4836209A (en) * 1986-08-07 1989-06-06 Stanford University NMR imaging of moving material using variable spatially selected excitation
US4718424A (en) * 1986-08-07 1988-01-12 Stanford University NMR imaging of blood flow by moment variation of magnetic gradients
US4751462A (en) * 1987-05-26 1988-06-14 General Electric Company Method for acquiring NMR data which is subject to periodic variations
US5124649A (en) * 1987-06-02 1992-06-23 Picker International, Inc. Magnetic resonance imaging with selective phase encoding averaging
IL85259A0 (en) * 1988-01-29 1988-07-31 Elscint Ltd Motion insensitive imaging using magnetic resonance systems
US4978918A (en) * 1988-04-24 1990-12-18 Mitsubishi Denki Kabushiki Kaisha Magnetic resonance imaging method
DE4337503C1 (de) * 1993-11-03 1995-02-09 Siemens Ag Verfahren zur ortsaufgelösten Blutflußmessung mittels kernmagnetischer Resonanz
US5427101A (en) * 1994-08-04 1995-06-27 Board Of Trustees Of The Leland Stanford Junior University Diminishing variance process for real-time reduction of motion artifacts in MRI
DE19529512C2 (de) * 1995-08-10 2000-11-23 Siemens Ag Verfahren zur Phasenkontrast-MR-Angiographie und Anordnung zur Durchführung des Verfahrens
US6178271B1 (en) 1996-04-29 2001-01-23 The Mclean Hospital Corporation Methods and systems for registering image data
US5850486A (en) * 1996-04-29 1998-12-15 The Mclean Hospital Corporation Registration of image data
GB9801622D0 (en) * 1998-01-23 1998-03-25 Inst Of Food Research Improvements in and relating to magnetic resonance imaging
US6181832B1 (en) 1998-04-17 2001-01-30 Mclean Hospital Corporation Methods and systems for removing artifacts introduced by image registration
US7106556B2 (en) * 2003-06-24 2006-09-12 Seagate Technology Llc Slider configured for rapid bearing stabilization during ramp load operations

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4021726A (en) * 1974-09-11 1977-05-03 National Research Development Corporation Image formation using nuclear magnetic resonance
GB1580787A (en) * 1976-04-14 1980-12-03 Mansfield P Nuclear magnetic resonance apparatus and methods
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
NL7904986A (nl) * 1979-06-27 1980-12-30 Philips Nv Werkwijze en inrichting voor het bepalen van een kernspindichtheidsverdeling in een deel van een lichaam.
GB2056078B (en) * 1979-08-03 1984-02-29 Emi Ltd Nuclear magnetic resonance systems
JPS5838539A (ja) * 1981-08-31 1983-03-07 株式会社東芝 診断用核磁気共鳴装置
US4506075A (en) * 1982-02-08 1985-03-19 Sterling Drug Inc. Process of preparing cardiotonic 3-methyl-4-(4-pyridinyl)benzeneamines
US4607223A (en) * 1982-08-13 1986-08-19 National Research Development Corporation Nuclear magnetic resonance imaging method
US4594550A (en) * 1982-09-07 1986-06-10 Utsunomiya University Method of scanning specifying magnetic field for nuclear magnetic resonance imaging

Also Published As

Publication number Publication date
DE3476454D1 (en) 1989-03-02
EP0142343B1 (de) 1989-01-25
EP0142343A3 (en) 1986-04-16
US4616180A (en) 1986-10-07
EP0142343A2 (de) 1985-05-22

Similar Documents

Publication Publication Date Title
ATE40471T1 (de) Bilderzeugung mittels magnetischer kernresonanz mit verminderter empfindlichkeit gegenueber bewegungen.
ATE127235T1 (de) Bilderzeugung mittels magnetischer resonanz mit kompensation der unechten frequenz- /phasenverschiebungen infolge unerwünschte magnetfeldänderungen während des messverfahrens zur bestimmung der magnetischen kernresonanz- daten.
EP0371477A3 (de) Verfahren zur Bilderzeugung mittels magnetischer Resonanz für bewegliche Objekte
FI870009L (fi) Itsesuojatut gradienttikelat ydinmagneettista resonanssikuvausta varten
ATE17888T1 (de) Verfahren zum messen der magnetischen kernresonanz fuer die nmr-tomographie.
AU545386B2 (en) Measuring nuclear magnetic resonance
DE3482336D1 (de) Geraet zur bilderzeugung mittels magnetischer kernresonanz.
DE3773162D1 (de) Gradientenspulen-anordnung fuer einen apparat zur bilderzeugung mittels magnetischer resonanz.
DE3480427D1 (en) Offset gradient fields in nuclear magnetic resonance imaging systems
EP0280310A3 (de) Verfahren und Vorrichtung zur Bilderzeugung mittels magnetischer Resonanz
JPS6427545A (en) Method and apparatus for correcting phase in mr blood vessel imaging
EP0375314A3 (de) Verfahren und Apparat zur NMR-Abbildung
US4836209A (en) NMR imaging of moving material using variable spatially selected excitation
EP0150938A3 (de) Magnetischer Kernresonanzapparat
EP0963559B1 (de) Verfahren und gerät der magnetischen resonanz zur bestimmung eines perfusions-bildes
ATE55188T1 (de) Verfahren zur zweidimensionalen bilderzeugung mittels magnetischer kernresonanz.
DE3789086D1 (de) Zusammengesetzte impulssequenz zur bilderzeugung mittels magnetischer kernresonanz.
GB1167962A (en) Improvements in Methods and Devices for Compensation of Parasitic Magnetic Fields, in Particular on an Aircraft Carrying a Magnetometer.
JPH1119061A (ja) 外乱磁場補償方法および磁気共鳴撮像装置
KR870000677B1 (en) Devices using nuclear magnetic resonance
NL8900198A (nl) Magnetische resonantieafbeelding.
JP2696995B2 (ja) Ｍｒイメージング装置
EP0256733B1 (de) Bilderzeugung von bewegendem Material durch magnetische Kernresonanz mittels räumlich veränderlicher selektiver Anregung
DE3873229D1 (de) Schnelles abbildungsverfahren mittels kernmagnetischer resonanz.
Narasimhan et al. 3D-MR microscopy of the mouse brain with intermolecular zero and double quantum coherences at 11.7 T

Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee