FI65862C - Nmr-avbildningsapparat - Google Patents

Nmr-avbildningsapparat Download PDF

Info

Publication number
FI65862C
FI65862C FI823444A FI823444A FI65862C FI 65862 C FI65862 C FI 65862C FI 823444 A FI823444 A FI 823444A FI 823444 A FI823444 A FI 823444A FI 65862 C FI65862 C FI 65862C
Authority
FI
Finland
Prior art keywords
signal
imaging
frequency
bandwidth
nuclear spin
Prior art date
Application number
FI823444A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI823444A0 (fi
FI65862B (fi
Inventor
Raimo Sepponen
Original Assignee
Instrumentarium Oy
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 Instrumentarium Oy filed Critical Instrumentarium Oy
Priority to FI823444A priority Critical patent/FI65862C/fi
Publication of FI823444A0 publication Critical patent/FI823444A0/fi
Priority to DE3336694A priority patent/DE3336694C2/de
Priority to GB08327028A priority patent/GB2129139B/en
Priority to JP58189789A priority patent/JPS5991345A/ja
Application granted granted Critical
Publication of FI65862B publication Critical patent/FI65862B/fi
Publication of FI65862C publication Critical patent/FI65862C/fi
Priority to US06/801,492 priority patent/US4626784A/en

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
    • G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
    • G01R33/36—Electrical details, e.g. matching or coupling of the coil to the receiver
    • G01R33/3614—RF power amplifiers
    • 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
    • G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
    • G01R33/36—Electrical details, e.g. matching or coupling of the coil to the receiver
    • G01R33/3621—NMR receivers or demodulators, e.g. preamplifiers, means for frequency modulation of the MR signal using a digital down converter, means for analog to digital conversion [ADC] or for filtering or processing of the MR signal such as bandpass filtering, resampling, decimation or interpolation

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
FI823444A 1982-10-11 1982-10-11 Nmr-avbildningsapparat FI65862C (fi)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FI823444A FI65862C (fi) 1982-10-11 1982-10-11 Nmr-avbildningsapparat
DE3336694A DE3336694C2 (de) 1982-10-11 1983-10-08 Kernspin- oder NMR-Darstellungseinrichtung
GB08327028A GB2129139B (en) 1982-10-11 1983-10-10 Nmr imaging assembly
JP58189789A JPS5991345A (ja) 1982-10-11 1983-10-11 核磁気共鳴結像アセンブリ
US06/801,492 US4626784A (en) 1982-10-11 1985-11-22 NMR imaging device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI823444 1982-10-11
FI823444A FI65862C (fi) 1982-10-11 1982-10-11 Nmr-avbildningsapparat

Publications (3)

Publication Number Publication Date
FI823444A0 FI823444A0 (fi) 1982-10-11
FI65862B FI65862B (fi) 1984-03-30
FI65862C true FI65862C (fi) 1984-07-10

Family

ID=8516130

Family Applications (1)

Application Number Title Priority Date Filing Date
FI823444A FI65862C (fi) 1982-10-11 1982-10-11 Nmr-avbildningsapparat

Country Status (5)

Country Link
US (1) US4626784A (de)
JP (1) JPS5991345A (de)
DE (1) DE3336694C2 (de)
FI (1) FI65862C (de)
GB (1) GB2129139B (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0132337A3 (de) * 1983-07-21 1986-12-30 The Regents Of The University Of California Vorrichtung und Verfahren zur Verminderung des "Aliasing-Artefaktes" bei der sagittalen oder koronalen NMR-Bilderzeugung
USRE37325E1 (en) * 1984-09-24 2001-08-14 Hanan Keren Slice orientation selection arrangement
US4710716A (en) * 1985-09-20 1987-12-01 Elscint Ltd. Slice orientation selection arrangement
US4613837A (en) * 1984-11-07 1986-09-23 Elscint, Ltd. Multiple feed Rf coils
US4748411A (en) * 1987-02-19 1988-05-31 Picker International, Inc. Phase encoding technique for more rapid magnetic resonance imaging
US4777438A (en) * 1987-04-27 1988-10-11 Picker International, Inc. Multiple imaging with improved signal-to-noise ratio
US4838274A (en) * 1987-09-18 1989-06-13 Air Products And Chemicals, Inc. Perfluoro-crown ethers in fluorine magnetic resonance imaging
US4859945A (en) * 1988-05-03 1989-08-22 Elscint Ltd. Optimized signal to noise ratio
US5177441A (en) * 1989-06-16 1993-01-05 Picker International, Inc. Elliptical cross section gradient oil
US5036282A (en) * 1989-06-16 1991-07-30 Picker International, Inc. Biplanar gradient coil for magnetic resonance imaging systems
US5185573A (en) * 1991-04-16 1993-02-09 Hewlett-Packard Company Method for focusing of magnetic resonance images
US5365173A (en) * 1992-07-24 1994-11-15 Picker International, Inc. Technique for driving quadrature dual frequency RF resonators for magnetic resonance spectroscopy/imaging by four-inductive loop over coupling
US5365172A (en) * 1992-08-07 1994-11-15 Brigham And Women's Hospital Methods and apparatus for MRI
US7468644B2 (en) * 2004-11-05 2008-12-23 New York University Gradient coil arrangement and method for using the same

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3164661A (en) * 1961-08-22 1965-01-05 Gen Precision Inc Distance measuring system by irradiating a target with light and sensing the reflected light
US3789832A (en) * 1972-03-17 1974-02-05 R Damadian Apparatus and method for detecting cancer in tissue
US4015196A (en) * 1974-04-05 1977-03-29 National Research Development Corporation Analysis of materials
US4021726A (en) * 1974-09-11 1977-05-03 National Research Development Corporation Image formation using nuclear magnetic resonance
US4045731A (en) * 1974-11-21 1977-08-30 Takeda Riken Kogyo Kabushikikaisha Filter having an automatically controlled variable cut-off frequency
US3983399A (en) * 1975-03-18 1976-09-28 Picker Corporation Tomography system having axial scanning
CA1052861A (en) * 1975-03-18 1979-04-17 Varian Associates Gyromagnetic resonance fourier transform zeugmatography
US4051196A (en) * 1975-05-27 1977-09-27 Allied Chemical Corporation Antistatic fiber containing chain-extended tetrols based on diamines
US4100916A (en) * 1976-04-27 1978-07-18 King Donald L Three-dimensional ultrasonic imaging of animal soft tissue
GB1594751A (en) * 1977-01-31 1981-08-05 Tokyo Shibaura Electric Co Method and apparatus for tomography by means of penetrating radiation
GB1601816A (en) * 1977-05-27 1981-11-04 Nat Res Dev Investigation of samples by nmr techniques
JPS5441918A (en) * 1977-09-09 1979-04-03 Matsushita Electric Works Ltd Method of making glasssfiber reinforced cement sheet
GB1584949A (en) * 1978-05-25 1981-02-18 Emi Ltd Imaging systems
JPS6056225B2 (ja) * 1978-08-25 1985-12-09 東亞合成株式会社 亜鉛系基材の表面処理方法
US4213184A (en) * 1978-10-10 1980-07-15 The United States Of America As Represented By The United States Department Of Energy Signal processor for processing ultrasonic receiver signals
JPS5643543A (en) * 1979-09-18 1981-04-22 Sanyo Electric Co Ltd Muclear magnetic resonating method
GB2091884B (en) * 1981-01-26 1984-07-18 Hinsaw Waldo Stephen Investigation of samples by nmr techniques

Also Published As

Publication number Publication date
FI823444A0 (fi) 1982-10-11
JPS5991345A (ja) 1984-05-26
DE3336694C2 (de) 1994-09-29
US4626784A (en) 1986-12-02
DE3336694A1 (de) 1984-04-12
GB2129139A (en) 1984-05-10
GB8327028D0 (en) 1983-11-09
FI65862B (fi) 1984-03-30
GB2129139B (en) 1986-04-30

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Owner name: INSTRUMENTARIUM OY