JPS5766346A - Resonance method for nucleus magnetism - Google Patents

Resonance method for nucleus magnetism

Info

Publication number
JPS5766346A
JPS5766346A JP55142312A JP14231280A JPS5766346A JP S5766346 A JPS5766346 A JP S5766346A JP 55142312 A JP55142312 A JP 55142312A JP 14231280 A JP14231280 A JP 14231280A JP S5766346 A JPS5766346 A JP S5766346A
Authority
JP
Japan
Prior art keywords
measuring
magnetic field
nuclide
substance
sample
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.)
Granted
Application number
JP55142312A
Other languages
Japanese (ja)
Other versions
JPS6359700B2 (en
Inventor
Junichi Hatta
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.)
Sanyo Electric Co Ltd
Sanyo Denki Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Sanyo Denki 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
Application filed by Sanyo Electric Co Ltd, Sanyo Denki Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP55142312A priority Critical patent/JPS5766346A/en
Publication of JPS5766346A publication Critical patent/JPS5766346A/en
Publication of JPS6359700B2 publication Critical patent/JPS6359700B2/ja
Granted 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
    • G01R33/58—Calibration 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

Landscapes

  • Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)

Abstract

PURPOSE:To enable to prevent deterioration of a picture quality in case a linear grade magnetic field changes, by a method wherein a reference sample is inserted into a toroidal substance, placed outside a measuring sample, and a measuring nuclide and a reference nuclide are concurrently measured. CONSTITUTION:A reference sample is inserted in a toroidal substance 2, placed outside a measuring sample 1, so that the substance 2 turns centering around an O- point. A NMR measurement for a measuring nuclide and a reference nuclide at a given cross section of the measuring sample 1 and of the toroidal substance 2 is performed by applying a linear grade magnetic field, turning centering around the O- point in the direction of a z-axis. Through the measurement of a shift amount of a reference nuclide spectrum, a change amount of a static magnetic field H0 in the linear grade magnetic field is found, and a spectro concentration distribution for atomic nucleus in the measuring sample 1 is detected as a picture by means of a measuring nucleus spectrum shifted corresponding to the change amount. This permits the prevention of the deterioration of a picture quality due to the change in the linear grade magnetic field.
JP55142312A 1980-10-11 1980-10-11 Resonance method for nucleus magnetism Granted JPS5766346A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55142312A JPS5766346A (en) 1980-10-11 1980-10-11 Resonance method for nucleus magnetism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55142312A JPS5766346A (en) 1980-10-11 1980-10-11 Resonance method for nucleus magnetism

Publications (2)

Publication Number Publication Date
JPS5766346A true JPS5766346A (en) 1982-04-22
JPS6359700B2 JPS6359700B2 (en) 1988-11-21

Family

ID=15312422

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55142312A Granted JPS5766346A (en) 1980-10-11 1980-10-11 Resonance method for nucleus magnetism

Country Status (1)

Country Link
JP (1) JPS5766346A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5855741A (en) * 1981-09-28 1983-04-02 Hitachi Ltd Inspecting device using nuclear magnetic resonance
JPS59142444A (en) * 1983-02-04 1984-08-15 Hitachi Ltd Inspecting apparatus using nuclear magnetic resonance
JPS59190643A (en) * 1983-04-14 1984-10-29 Hitachi Ltd Inspecting apparatus utilizing nuclear magnetic resonance
EP0138962A1 (en) * 1983-03-18 1985-05-02 Albert Macovski Nmr imaging system using field compensation.
JPS60222043A (en) * 1984-04-20 1985-11-06 横河電機株式会社 Diagnostic apparatus by nuclear magnetic resonance
JPS60242845A (en) * 1984-05-18 1985-12-02 横河電機株式会社 Processing of nuclear magnetic resonance data
US4718431A (en) * 1985-10-22 1988-01-12 Siemens Aktiengesellschaft Surface coil with calibration substance for use in a nuclear magnetic resonance apparatus

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS576348A (en) * 1980-06-13 1982-01-13 Toshiba Corp Nuclear magnetic resonator

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS576348A (en) * 1980-06-13 1982-01-13 Toshiba Corp Nuclear magnetic resonator

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5855741A (en) * 1981-09-28 1983-04-02 Hitachi Ltd Inspecting device using nuclear magnetic resonance
JPS59142444A (en) * 1983-02-04 1984-08-15 Hitachi Ltd Inspecting apparatus using nuclear magnetic resonance
JPH0453537B2 (en) * 1983-02-04 1992-08-26 Hitachi Ltd
EP0138962A1 (en) * 1983-03-18 1985-05-02 Albert Macovski Nmr imaging system using field compensation.
JPS59190643A (en) * 1983-04-14 1984-10-29 Hitachi Ltd Inspecting apparatus utilizing nuclear magnetic resonance
JPH0448451B2 (en) * 1983-04-14 1992-08-06 Hitachi Ltd
JPS60222043A (en) * 1984-04-20 1985-11-06 横河電機株式会社 Diagnostic apparatus by nuclear magnetic resonance
US4684889A (en) * 1984-04-20 1987-08-04 Yokogawa Hokushin Electric Corporation NMR apparatus compensated for primary field changes
JPS60242845A (en) * 1984-05-18 1985-12-02 横河電機株式会社 Processing of nuclear magnetic resonance data
JPH0311224B2 (en) * 1984-05-18 1991-02-15 Yokokawa Denki Kk
US4718431A (en) * 1985-10-22 1988-01-12 Siemens Aktiengesellschaft Surface coil with calibration substance for use in a nuclear magnetic resonance apparatus

Also Published As

Publication number Publication date
JPS6359700B2 (en) 1988-11-21

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