JPH0370792B2 - - Google Patents

Info

Publication number
JPH0370792B2
JPH0370792B2 JP57226972A JP22697282A JPH0370792B2 JP H0370792 B2 JPH0370792 B2 JP H0370792B2 JP 57226972 A JP57226972 A JP 57226972A JP 22697282 A JP22697282 A JP 22697282A JP H0370792 B2 JPH0370792 B2 JP H0370792B2
Authority
JP
Japan
Prior art keywords
echo signal
echo
magnetic resonance
signals
subject
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
Application number
JP57226972A
Other languages
English (en)
Japanese (ja)
Other versions
JPS59119248A (ja
Inventor
Hidetomo Takase
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.)
Toshiba Corp
Original Assignee
Tokyo Shibaura Electric Co 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.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=16853497&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=JPH0370792(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Tokyo Shibaura Electric Co Ltd filed Critical Tokyo Shibaura Electric Co Ltd
Priority to JP57226972A priority Critical patent/JPS59119248A/ja
Priority to DE8383112855T priority patent/DE3375670D1/de
Priority to EP83112855A priority patent/EP0114349B1/en
Publication of JPS59119248A publication Critical patent/JPS59119248A/ja
Priority to US07/178,850 priority patent/US4849886A/en
Publication of JPH0370792B2 publication Critical patent/JPH0370792B2/ja
Granted legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
    • A61B5/055—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
    • 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
    • G01R33/28—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

  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Surgery (AREA)
  • Biophysics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Pathology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biomedical Technology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Signal Processing (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
JP57226972A 1982-12-27 1982-12-27 核磁気共鳴装置 Granted JPS59119248A (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP57226972A JPS59119248A (ja) 1982-12-27 1982-12-27 核磁気共鳴装置
DE8383112855T DE3375670D1 (en) 1982-12-27 1983-12-20 Nuclear magnetic resonance diagnostic apparatus
EP83112855A EP0114349B1 (en) 1982-12-27 1983-12-20 Nuclear magnetic resonance diagnostic apparatus
US07/178,850 US4849886A (en) 1982-12-27 1988-04-01 System for improving the SIN ratio of a NMR signal by summing in phase cosine and/or sine components

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57226972A JPS59119248A (ja) 1982-12-27 1982-12-27 核磁気共鳴装置

Publications (2)

Publication Number Publication Date
JPS59119248A JPS59119248A (ja) 1984-07-10
JPH0370792B2 true JPH0370792B2 (en]) 1991-11-08

Family

ID=16853497

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57226972A Granted JPS59119248A (ja) 1982-12-27 1982-12-27 核磁気共鳴装置

Country Status (4)

Country Link
US (1) US4849886A (en])
EP (1) EP0114349B1 (en])
JP (1) JPS59119248A (en])
DE (1) DE3375670D1 (en])

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2021166419A1 (en]) * 2020-02-20 2021-08-26

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4616183A (en) * 1984-10-22 1986-10-07 General Electric Company Method for reducing baseline error components in NMR signals
US5185573A (en) * 1991-04-16 1993-02-09 Hewlett-Packard Company Method for focusing of magnetic resonance images
JP4021402B2 (ja) * 2003-11-11 2007-12-12 株式会社日立製作所 制御可能な検波部を有する核磁気共鳴装置
US7805981B2 (en) * 2007-02-13 2010-10-05 The Trustees Of The University Of Pennsylvania Gaseous nuclear symmetric state and quantification thereof

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3297860A (en) * 1963-06-19 1967-01-10 Technical Measurement Corp Spectroscopic computer
DE1275629B (de) * 1964-09-30 1968-08-22 Varian Internat A G Verfahren zur Befreiung wiederholbarer Spannungsverlaeufe von statistischen Stoerungen und Anordnung zur Durchfuehrung des Verfahrens
GB1496886A (en) * 1974-04-08 1978-01-05 Nat Res Dev Nuclear magnetic resonance apparatus
US4204226A (en) * 1978-05-16 1980-05-20 Wisconsin Alumni Research Foundation Real-time digital X-ray time interval difference imaging
US4204225A (en) * 1978-05-16 1980-05-20 Wisconsin Alumni Research Foundation Real-time digital X-ray subtraction imaging
GB1584949A (en) * 1978-05-25 1981-02-18 Emi Ltd Imaging systems
US4297637A (en) * 1978-07-20 1981-10-27 The Regents Of The University Of California Method and apparatus for mapping lines of nuclear density within an object using nuclear magnetic resonance
US4250451A (en) * 1978-12-28 1981-02-10 Cordless Power Corporation Magnetic induction imaging system
US4307344A (en) * 1979-01-25 1981-12-22 Emi Limited Imaging systems
WO1981002789A1 (en) * 1980-03-14 1981-10-01 Nat Res Dev Methods of producing image information from objects
US4493039A (en) * 1980-05-06 1985-01-08 President And Directors Of Georgetown University Apparatus and method for image reproduction of materials using their magnetic and electric properties
US4430749A (en) * 1981-06-30 1984-02-07 Siemens Gammasonics, Inc. Medical imaging apparatus and method for furnishing difference images
US4599565A (en) * 1981-12-15 1986-07-08 The Regents Of The University Of Calif. Method and apparatus for rapid NMR imaging using multi-dimensional reconstruction techniques
US4438400A (en) * 1982-01-18 1984-03-20 Varian Associates, Inc. Method for suppression of acoustic ringing in NMR measurements
US4468621A (en) * 1982-01-20 1984-08-28 National Research Development Corporation Investigation of samples by N.M.R. techniques
US4480228A (en) * 1982-10-15 1984-10-30 General Electric Company Selective volume method for performing localized NMR spectroscopy

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2021166419A1 (en]) * 2020-02-20 2021-08-26

Also Published As

Publication number Publication date
EP0114349B1 (en) 1988-02-10
JPS59119248A (ja) 1984-07-10
US4849886A (en) 1989-07-18
EP0114349A3 (en) 1985-05-29
EP0114349A2 (en) 1984-08-01
DE3375670D1 (en) 1988-03-17

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