NL8602821A - Werkwijze en inrichting voor het bepalen van gecorrigeerd mri oppervlaktespoelbeeld. - Google Patents

Werkwijze en inrichting voor het bepalen van gecorrigeerd mri oppervlaktespoelbeeld. Download PDF

Info

Publication number
NL8602821A
NL8602821A NL8602821A NL8602821A NL8602821A NL 8602821 A NL8602821 A NL 8602821A NL 8602821 A NL8602821 A NL 8602821A NL 8602821 A NL8602821 A NL 8602821A NL 8602821 A NL8602821 A NL 8602821A
Authority
NL
Netherlands
Prior art keywords
image
surface coil
resonance signals
coil image
group
Prior art date
Application number
NL8602821A
Other languages
English (en)
Dutch (nl)
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Priority to NL8602821A priority Critical patent/NL8602821A/nl
Priority to US07/117,121 priority patent/US4812753A/en
Priority to IL84371A priority patent/IL84371A0/xx
Priority to EP87202132A priority patent/EP0271123B1/en
Priority to DE8787202132T priority patent/DE3776517D1/de
Priority to JP62280330A priority patent/JP2677568B2/ja
Publication of NL8602821A publication Critical patent/NL8602821A/nl

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00Arrangements or instruments for measuring magnetic variables
    • G01R33/20Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/32Excitation or detection systems, e.g. using radio frequency signals
    • G01R33/34Constructional details, e.g. resonators, specially adapted to MR
    • G01R33/341Constructional details, e.g. resonators, specially adapted to MR comprising surface coils
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00Arrangements or instruments for measuring magnetic variables
    • G01R33/20Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/24Arrangements or instruments for measuring magnetic variables involving magnetic resonance for measuring direction or magnitude of magnetic fields or magnetic flux
    • G01R33/246Spatial mapping of the RF magnetic field B1
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00Arrangements or instruments for measuring magnetic variables
    • G01R33/20Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/44Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/48NMR imaging systems
    • G01R33/58Calibration of imaging systems, e.g. using test probes, Phantoms; Calibration objects or fiducial markers such as active or passive RF coils surrounding an MR active material
    • G01R33/583Calibration of signal excitation or detection systems, e.g. for optimal RF excitation power or frequency

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
NL8602821A 1986-11-07 1986-11-07 Werkwijze en inrichting voor het bepalen van gecorrigeerd mri oppervlaktespoelbeeld. NL8602821A (nl)

Priority Applications (6)

Application Number Priority Date Filing Date Title
NL8602821A NL8602821A (nl) 1986-11-07 1986-11-07 Werkwijze en inrichting voor het bepalen van gecorrigeerd mri oppervlaktespoelbeeld.
US07/117,121 US4812753A (en) 1986-11-07 1987-11-04 Method and arrangement for determining a corrected MRI surface coil image
IL84371A IL84371A0 (en) 1986-11-07 1987-11-04 Method and arrangement for determining a nmr distribution in part of a body
EP87202132A EP0271123B1 (en) 1986-11-07 1987-11-04 Method and arrangement for determining a corrected mri surface coil image
DE8787202132T DE3776517D1 (de) 1986-11-07 1987-11-04 Verfahren und vorrichtung zur bestimmung der durch oberflaechenspulen erzeugten und korrigierten bilder mittels magnetischer kernresonanz.
JP62280330A JP2677568B2 (ja) 1986-11-07 1987-11-07 被検体の一部分の核磁化分布を測定する装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8602821A NL8602821A (nl) 1986-11-07 1986-11-07 Werkwijze en inrichting voor het bepalen van gecorrigeerd mri oppervlaktespoelbeeld.
NL8602821 1986-11-07

Publications (1)

Publication Number Publication Date
NL8602821A true NL8602821A (nl) 1988-06-01

Family

ID=19848801

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8602821A NL8602821A (nl) 1986-11-07 1986-11-07 Werkwijze en inrichting voor het bepalen van gecorrigeerd mri oppervlaktespoelbeeld.

Country Status (6)

Country Link
US (1) US4812753A (xx)
EP (1) EP0271123B1 (xx)
JP (1) JP2677568B2 (xx)
DE (1) DE3776517D1 (xx)
IL (1) IL84371A0 (xx)
NL (1) NL8602821A (xx)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02167136A (ja) * 1988-12-20 1990-06-27 Hitachi Ltd Mrイメージング装置
US5208534A (en) * 1989-08-09 1993-05-04 Kabushiki Kaisha Toshiba Magnetic resonance imaging system
US5001428A (en) * 1989-08-21 1991-03-19 General Electric Company Method for mapping the RF transmit and receive field in an NMR system
FR2693801B1 (fr) * 1992-07-16 1994-09-02 Commissariat Energie Atomique Magnétomètre à polarisation lumineuse et à champ de radiofréquence asservis.
JPH0731606A (ja) * 1993-07-22 1995-02-03 Shimadzu Corp 磁気共鳴断層撮影装置
EP0704062B1 (en) * 1994-04-08 2002-06-19 Koninklijke Philips Electronics N.V. Magnetic resonance imaging method and apparatus
DE59509825D1 (de) * 1994-08-03 2001-12-20 Philips Corp Intellectual Pty MR-Verfahren zur Bestimmung der Kernmagnetisierungsverteilung mit einer Oberflächenspulen-Anordnung
DE4444061A1 (de) * 1994-12-10 1996-06-13 Philips Patentverwaltung MR-Verfahren zur Bestimmung der Kernmagnetisierungsverteilung mit einer Oberflächenspulen-Anordnung
DE19502374A1 (de) 1995-01-26 1996-10-31 Philips Patentverwaltung MR-Verfahren mit induktiv gekoppelten Empfangsspulen-Anordnungen
US5659629A (en) * 1995-04-07 1997-08-19 General Electric Company Visualization of a multi-dimensional data set acquired with a surface receive coil
US6680610B1 (en) 1999-05-24 2004-01-20 Walid E. Kyriakos Apparatus and method for parallel MR data acquisition and parallel image reconstruction from multiple receiver coil arrays for fast MRI
GB2355075A (en) 1999-10-09 2001-04-11 Marconi Electronic Syst Ltd MRI apparatus with additional data correction coil
US6668184B1 (en) * 2000-12-19 2003-12-23 Ge Medical Systems Global Technology Company, Llc System for and method of synchronizing an image data receiver and an MR imaging acquisition slice
US6823205B1 (en) * 2001-02-08 2004-11-23 Boston University Radiology Associates Synthetic images for a magnetic resonance imaging scanner using linear combination of source images to generate contrast and spatial navigation
US6559642B2 (en) * 2001-05-09 2003-05-06 Ge Medical Systems Global Technology Company, Llc Calibration method for use with sensitivity encoding MRI acquisition
WO2003005053A1 (de) * 2001-07-04 2003-01-16 Siemens Aktiengesellschaft Verfahren zur intensitätskorrektur eines magnetresonanzbildes
DE10138705C1 (de) * 2001-08-07 2003-03-27 Siemens Ag Verfahren zur Homogenisierung der Bildaufnahme einer Magnet-resonanzmessung
JP4130405B2 (ja) * 2003-12-22 2008-08-06 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
EP2409642A1 (en) 2004-02-26 2012-01-25 Kabushiki Kaisha Toshiba Magnetic resonance imaging apparatus and data processing method for magnetic resonance imaging apparatus
JP4037385B2 (ja) * 2004-04-23 2008-01-23 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 画像生成方法およびmri装置
CN100591269C (zh) * 2006-02-17 2010-02-24 株式会社东芝 数据校正装置、数据校正方法、磁共振成像装置和x射线ct装置
JP2008229277A (ja) * 2007-03-23 2008-10-02 Ge Medical Systems Global Technology Co Llc 磁気共鳴イメージング装置、磁気共鳴イメージング方法、および、感度分布計測装置
CN101498773B (zh) * 2008-01-29 2012-05-23 西门子(中国)有限公司 一种提高图像亮度均匀度的方法和装置
JP5283213B2 (ja) * 2008-05-01 2013-09-04 株式会社日立メディコ 磁気共鳴イメージング装置
DE102017201883B4 (de) * 2017-02-07 2019-03-28 Siemens Healthcare Gmbh Gewichtungsmatrix zur Reduzierung von Artefakten bei paralleler Bildgebung
JP7179483B2 (ja) * 2018-04-23 2022-11-29 キヤノンメディカルシステムズ株式会社 磁気共鳴イメージング装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4477777A (en) * 1981-06-19 1984-10-16 Oxford Research Systems Limited Analysis of biological material
US4480228A (en) * 1982-10-15 1984-10-30 General Electric Company Selective volume method for performing localized NMR spectroscopy
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
JPS60376A (ja) * 1983-06-15 1985-01-05 Yokogawa Medical Syst Ltd 核磁気共鳴イメ−ジング装置におけるrfコイル装置
JPS61148358A (ja) * 1984-12-24 1986-07-07 Toshiba Corp 磁気共鳴イメ−ジング装置
JPS61115958U (xx) * 1984-12-30 1986-07-22
US4718431A (en) * 1985-10-22 1988-01-12 Siemens Aktiengesellschaft Surface coil with calibration substance for use in a nuclear magnetic resonance apparatus
US4731865A (en) * 1986-03-27 1988-03-15 General Electric Company Digital image correction
JPH0661666A (ja) * 1992-08-07 1994-03-04 Fujitsu Ltd シェルフのバックボード補強構造

Also Published As

Publication number Publication date
JPS63132645A (ja) 1988-06-04
IL84371A0 (en) 1988-04-29
DE3776517D1 (de) 1992-03-12
EP0271123A1 (en) 1988-06-15
EP0271123B1 (en) 1992-01-29
JP2677568B2 (ja) 1997-11-17
US4812753A (en) 1989-03-14

Similar Documents

Publication Publication Date Title
NL8602821A (nl) Werkwijze en inrichting voor het bepalen van gecorrigeerd mri oppervlaktespoelbeeld.
Gallichan et al. Retrospective correction of involuntary microscopic head movement using highly accelerated fat image navigators (3D FatNavs) at 7T
Irarrazabal et al. Inhomogeneity correction using an estimated linear field map
US5427101A (en) Diminishing variance process for real-time reduction of motion artifacts in MRI
US5942897A (en) Magnetic resonance imaging apparatus
EP1646885B1 (en) Shimming of mri scanner involving fat suppression and/or black blood preparation
US20070219442A1 (en) Methods and apparatus for mapping internal and bulk motion of an object with phase labeling in magnetic resonance imaging
Windischberger et al. Robust field map generation using a triple‐echo acquisition
NL9002842A (nl) Magnetische resonantie werkwijze en inrichting ter reductie van beeldfouten in een magnetisch resonantie beeld.
EP0301629B1 (en) Method and apparatus for carrying out a phase correction in mr angiography
EP0465139A2 (en) Shimming magnets in NMR systems
JP3454760B2 (ja) 位相分布測定方法および装置、位相補正方法および装置、並びに、磁気共鳴撮像装置
US7233818B1 (en) Methods and apparatus for mapping internal and bulk motion of an object with phase labeling in magnetic resonance imaging
JP6912603B2 (ja) デュアルエコーディクソン型水/脂肪分離mr撮像
US5617029A (en) Method of magnet shimming
EP0182267B2 (en) A method for removing the effects of baseline error components in NMR imaging applications
Bouhrara et al. B1 mapping with selective pulses
US4954779A (en) Correction for eddy current caused phase degradation
US4799013A (en) Method for detecting and processing magnetic resonance signals
NL8702663A (nl) Werkwijze voor snelle acquisitie van spinresonantiegegevens voor een locaal oplossend onderzoek van een object.
NL8801594A (nl) Werkwijze en inrichting voor het bepalen van een spinresonantieverdeling.
EP0415683A2 (en) NMR system
CN110623666B (zh) 磁共振指纹方法
Eun et al. Fat separation using grid fit method at high-field MRI
DeMonte Low frequency current density imaging cylindrical phantom experiment

Legal Events

Date Code Title Description
A1B A search report has been drawn up
BV The patent application has lapsed