FI80584C - Undersökningsmodul - Google Patents

Undersökningsmodul Download PDF

Info

Publication number
FI80584C
FI80584C FI884861A FI884861A FI80584C FI 80584 C FI80584 C FI 80584C FI 884861 A FI884861 A FI 884861A FI 884861 A FI884861 A FI 884861A FI 80584 C FI80584 C FI 80584C
Authority
FI
Finland
Prior art keywords
nmr
magnetic resonance
frame
resonance imaging
pat
Prior art date
Application number
FI884861A
Other languages
English (en)
Finnish (fi)
Other versions
FI884861A0 (fi
FI80584B (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 FI884861A priority Critical patent/FI80584C/sv
Publication of FI884861A0 publication Critical patent/FI884861A0/fi
Priority to JP1273604A priority patent/JP2858818B2/ja
Priority to DE19893934919 priority patent/DE3934919A1/de
Application granted granted Critical
Publication of FI80584B publication Critical patent/FI80584B/fi
Publication of FI80584C publication Critical patent/FI80584C/sv
Priority to US07/738,834 priority patent/US5218964A/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
    • G01R33/285—Invasive instruments, e.g. catheters or biopsy needles, specially adapted for tracking, guiding or visualization by NMR
    • G01R33/286—Invasive instruments, e.g. catheters or biopsy needles, specially adapted for tracking, guiding or visualization by NMR involving passive visualization of interventional instruments, i.e. making the instrument visible as part of the normal MR process
    • 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
    • G01R33/58—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
    • 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
    • G01R33/62—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using double resonance

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Pathology (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Biophysics (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Biomedical Technology (AREA)
  • Engineering & Computer Science (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)

Claims (2)

1. Testramverk för undersökning av ett objekt, t.ex. ett stereotaktiskt ramverk för hjärnoperationer och för ätgärder vid behandling av tumörer, kännetecknat. därav, att nägra delar av ramverket, senare referensomräden, anord-nats att observeras med NMR-metoder sasom magnetbild*agning sälunda, att referensomrädet inkluderar en substans med NMR-aktiva kärnor, och att för växelverkan med ovannämnda NMR-aktiva kärnor anordnats en substans, en relaxant, som föror-sakar effektivering av NMR-signalen genom dynamisk kärnpoda-risation (DNP) vid mättning av ovannämnda substansers elektron-spinnsystem med yttre energi, mättningsenergi.
2. Förfarande för lokalisering av referensomradct. för ett testramverk enligt patentkravet 1 genom magnetbi l.dtagning, kännetecknat därav, att referensomradets emitte-rande NMR-signal effektiveras genom DNP.
FI884861A 1988-10-21 1988-10-21 Undersökningsmodul FI80584C (sv)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FI884861A FI80584C (sv) 1988-10-21 1988-10-21 Undersökningsmodul
JP1273604A JP2858818B2 (ja) 1988-10-21 1989-10-20 検査フレーム
DE19893934919 DE3934919A1 (de) 1988-10-21 1989-10-20 Rahmen fuer die pruefung bzw. untersuchung eines gegenstandes
US07/738,834 US5218964A (en) 1988-10-21 1991-08-01 Method for providing accurate reference markers in magnetic resonance images

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI884861 1988-10-21
FI884861A FI80584C (sv) 1988-10-21 1988-10-21 Undersökningsmodul

Publications (3)

Publication Number Publication Date
FI884861A0 FI884861A0 (fi) 1988-10-21
FI80584B FI80584B (fi) 1990-03-30
FI80584C true FI80584C (sv) 1990-07-10

Family

ID=8527238

Family Applications (1)

Application Number Title Priority Date Filing Date
FI884861A FI80584C (sv) 1988-10-21 1988-10-21 Undersökningsmodul

Country Status (3)

Country Link
JP (1) JP2858818B2 (sv)
DE (1) DE3934919A1 (sv)
FI (1) FI80584C (sv)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19511796C2 (de) * 1995-03-30 1998-10-01 Siemens Ag Kopfantenne für Magnetresonanzuntersuchungen
FI105447B (sv) * 1998-11-03 2000-08-31 Raimo Pentti Juhani Joensuu Arrangemang för undersökning av ett objekt

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4617925A (en) * 1984-10-01 1986-10-21 Laitinen Lauri V Adapter for definition of the position of brain structures
US4719425A (en) * 1986-04-15 1988-01-12 Scientific Innovations, Inc. NMR imaging method and apparatus

Also Published As

Publication number Publication date
FI884861A0 (fi) 1988-10-21
JP2858818B2 (ja) 1999-02-17
JPH02159248A (ja) 1990-06-19
DE3934919A1 (de) 1990-04-26
FI80584B (fi) 1990-03-30

Similar Documents

Publication Publication Date Title
FI80585B (fi) Arrangemang foer undersoekning av ett objekt.
US5218964A (en) Method for providing accurate reference markers in magnetic resonance images
US4307343A (en) Moving gradient zeugmatography
US6975896B2 (en) Fiducial markers for MRI
US5479925A (en) Magnetic resonance (MR) angiography in a low-field imaging magnet
US6876198B2 (en) Magnetic resonance imaging system
EP2294437B1 (en) Magnetic resonance imaging apparatus and method using squid detection and field- cycling
FI80796C (sv) Arrangemang för materialundersökning
US4567440A (en) Vivo P-31 NMR imaging of phosphorus metabolites
US5154603A (en) Examination method and apparatus
US5578921A (en) Magnetic resonance imaging using three-dimensional spectral-spatial excitation
US5111145A (en) Method and apparatus for studying the properties of a material
FI75428C (sv) Förfarande för kartläggning av de kärnmagnetiska egenskaperna hos ett objekt, som skall undersökas.
USRE32712E (en) Moving gradient zeugmatography
Le Bihan Temperature imaging by NMR
FI80584C (sv) Undersökningsmodul
US5159270A (en) Imaging method
US4743850A (en) Method of mapping the nuclear magnetic properties of an object to be examined
Alford et al. Design and construction of a prototype high‐power B0 insert coil for field‐cycled imaging in superconducting MRI systems
Bottomley Nuclear magnetic resonance: Beyond physical imaging: A powerful new diagnostic tool that uses magnetic fields and radio waves creates pictures of the body's internal chemistry
FI80798B (fi) Modellbildobjekt.
US20060232272A1 (en) Imaging apparatus and method
Joensuu et al. Interventional MR imaging: demonstration of the feasibility of the Overhauser marker enhancement (OMEN) technique
WO2020178766A1 (en) Mri apparatus and method adapted for changing the static magnetic field b0 from a first to a second value
Peters Principles and applications of magnetic resonance imaging (MRI) in neurology and neurosurgery

Legal Events

Date Code Title Description
PC Transfer of assignment of patent

Owner name: PICKER NORDSTAR OY

MM Patent lapsed

Owner name: PICKER NORDSTAR OY