SE8004075L - NMR DIAGNOSTIC APPARATUS - Google Patents

NMR DIAGNOSTIC APPARATUS

Info

Publication number
SE8004075L
SE8004075L SE8004075A SE8004075A SE8004075L SE 8004075 L SE8004075 L SE 8004075L SE 8004075 A SE8004075 A SE 8004075A SE 8004075 A SE8004075 A SE 8004075A SE 8004075 L SE8004075 L SE 8004075L
Authority
SE
Sweden
Prior art keywords
nmr
sampling line
line
field
diagnosis
Prior art date
Application number
SE8004075A
Other languages
Unknown language ( )
Swedish (sv)
Inventor
R E 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
Publication of SE8004075L publication Critical patent/SE8004075L/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
    • G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
    • G01R33/387—Compensation of inhomogeneities
    • G01R33/3873—Compensation of inhomogeneities using ferromagnetic bodies ; Passive shimming

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)

Abstract

In a nuclear magnetic resonance (NMR) apparatus for use in medical diagnosis, an inhomogeneous magnetic field is provided by for example solenoid magnet 1 with a supra-conductor and this field is continuously modified mechanically for example by a rotatable ferromagnetic member 2 everywhere except on sampling line 4. On this line a constant field strength of a given intensity, usable for NMR diagnosis, is present within a small locally circumscribed region, which is arranged to be accurately pinpointable. A transmitter of high- frequency electromagnetic, a receiver for the NMR signal emitted by the object on the sampling line and means for processing and analysing the signal are also provided. <IMAGE>
SE8004075A 1979-06-01 1980-05-30 NMR DIAGNOSTIC APPARATUS SE8004075L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI791770A FI58868C (en) 1979-06-01 1979-06-01 NMR DIAGNOSANORDNING

Publications (1)

Publication Number Publication Date
SE8004075L true SE8004075L (en) 1980-12-02

Family

ID=8512696

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8004075A SE8004075L (en) 1979-06-01 1980-05-30 NMR DIAGNOSTIC APPARATUS

Country Status (5)

Country Link
JP (1) JPS561342A (en)
DE (1) DE3020385A1 (en)
FI (1) FI58868C (en)
GB (1) GB2052069B (en)
SE (1) SE8004075L (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS576347A (en) * 1980-06-13 1982-01-13 Toshiba Corp Nuclear magnetic resonator
US4554925A (en) * 1982-07-07 1985-11-26 Picker International, Ltd. Nuclear magnetic resonance imaging method
DE3227844A1 (en) * 1982-07-26 1984-01-26 Siemens AG, 1000 Berlin und 8000 München DEVICE FOR ADJUSTING AND HOLDING MAGNETIC COILS OF A MAGNETIC SYSTEM FOR CORE SPIN TOMOGRAPHY
DE3304461A1 (en) * 1983-02-09 1984-08-09 Siemens AG, 1000 Berlin und 8000 München DEVICE FOR GENERATING IMAGES OF AN EXAMINATION OBJECT WITH A MAGNETIC CORE RESONANCE
DE3344047A1 (en) * 1983-12-06 1985-06-13 BBC Aktiengesellschaft Brown, Boveri & Cie., Baden, Aargau MAGNETIC SYSTEM FOR A CORE SPIN TOMOGRAPH
GB8401550D0 (en) * 1984-01-20 1984-02-22 Picker Int Ltd Nuclear magnetic resonance apparatus
JPS61114148A (en) * 1984-11-09 1986-05-31 Sumitomo Special Metals Co Ltd Magnetic field generating device
FI75428C (en) * 1984-11-21 1988-06-09 Instrumentarium Oy Procedure for mapping the nuclear magnetic properties of an object to be investigated.
GB8527021D0 (en) * 1985-11-01 1985-12-04 Picker Int Ltd Nuclear magnetic resonance imaging
JPS62117541A (en) * 1985-11-18 1987-05-29 株式会社東芝 Magnetic resonance imaging apparatus
FR2612641B1 (en) * 1987-03-19 1989-06-09 Oreal APPARATUS FOR EXAMINING A BODY BY NUCLEAR MAGNETIC RESONANCE BY SLOW AND FAST METHODS, PARTICULARLY FOR EXAMINING THE SURFACE LAYER OF THIS BODY, DEVICE FOR CREATING A GRADIENT OF MAGNETIC FIELD FOR SUCH APPARATUS, AND APPLICATION TO THE SAME HUMAN BODY SKIN IMAGING
GB9002863D0 (en) * 1990-02-08 1990-04-04 Oxford Instr Ltd Magnetic field generating assembly
WO2010051362A1 (en) * 2008-10-29 2010-05-06 T2 Biosystems, Inc. Nmr detection of coagulation time
AU2012281017B2 (en) * 2011-07-13 2017-07-20 T2 Biosystems, Inc. NMR methods for monitoring blood clot formation

Also Published As

Publication number Publication date
FI791770A (en) 1980-12-02
FI58868C (en) 1981-05-11
DE3020385A1 (en) 1980-12-11
GB2052069B (en) 1983-04-27
JPS561342A (en) 1981-01-09
FI58868B (en) 1981-01-30
GB2052069A (en) 1981-01-21

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