IL71251A0 - Nmr blood flow imaging - Google Patents

Nmr blood flow imaging

Info

Publication number
IL71251A0
IL71251A0 IL71251A IL7125184A IL71251A0 IL 71251 A0 IL71251 A0 IL 71251A0 IL 71251 A IL71251 A IL 71251A IL 7125184 A IL7125184 A IL 7125184A IL 71251 A0 IL71251 A0 IL 71251A0
Authority
IL
Israel
Prior art keywords
blood flow
flow imaging
nmr blood
nmr
imaging
Prior art date
Application number
IL71251A
Other languages
English (en)
Original Assignee
Gen Electric
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 Gen Electric filed Critical Gen Electric
Publication of IL71251A0 publication Critical patent/IL71251A0/xx

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
    • G01R33/563—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution of moving material, e.g. flow contrast angiography
    • G01R33/56308—Characterization of motion or flow; Dynamic imaging
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording for evaluating the cardiovascular system, e.g. pulse, heart rate, blood pressure or blood flow
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording for evaluating the cardiovascular system, e.g. pulse, heart rate, blood pressure or blood flow
    • A61B5/026—Measuring blood flow
    • A61B5/0263—Measuring blood flow using NMR
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/704—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow using marked regions or existing inhomogeneities within the fluid stream, e.g. statistically occurring variations in a fluid parameter
    • G01F1/708—Measuring the time taken to traverse a fixed distance
    • G01F1/716—Measuring the time taken to traverse a fixed distance using electron paramagnetic resonance [EPR] or nuclear magnetic resonance [NMR]
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/74—Details of notification to user or communication with user or patient; User input means
    • A61B5/742—Details of notification to user or communication with user or patient; User input means using visual displays
    • A61B5/743—Displaying an image simultaneously with additional graphical information, e.g. symbols, charts, function plots
    • 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
    • G01R33/563—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution of moving material, e.g. flow contrast angiography
    • G01R33/5635—Angiography, e.g. contrast-enhanced angiography [CE-MRA] or time-of-flight angiography [TOF-MRA]

Landscapes

  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Surgery (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Biophysics (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • Cardiology (AREA)
  • Physiology (AREA)
  • Pathology (AREA)
  • Veterinary Medicine (AREA)
  • Molecular Biology (AREA)
  • Biomedical Technology (AREA)
  • Medical Informatics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Signal Processing (AREA)
  • Radiology & Medical Imaging (AREA)
  • Hematology (AREA)
  • Vascular Medicine (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Fluid Mechanics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Measuring Volume Flow (AREA)
IL71251A 1983-05-02 1984-03-15 Nmr blood flow imaging IL71251A0 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/490,605 US4516582A (en) 1983-05-02 1983-05-02 NMR blood flow imaging

Publications (1)

Publication Number Publication Date
IL71251A0 true IL71251A0 (en) 1984-06-29

Family

ID=23948755

Family Applications (1)

Application Number Title Priority Date Filing Date
IL71251A IL71251A0 (en) 1983-05-02 1984-03-15 Nmr blood flow imaging

Country Status (6)

Country Link
US (1) US4516582A (de)
EP (1) EP0124016A3 (de)
JP (1) JPS605138A (de)
KR (1) KR840009028A (de)
FI (1) FI840642L (de)
IL (1) IL71251A0 (de)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0103388B1 (de) * 1982-08-19 1988-11-17 Picker International Limited Kernmagnetische Resonanzmethode und Vorrichtung
US4602641A (en) * 1983-08-15 1986-07-29 The Regents Of The University Of California Method and apparatus for NMR detection and imaging of flowing fluid nuclei
GB2164155B (en) * 1984-08-10 1989-07-19 Gen Hospital Corp Flow imaging by means of nuclear magnetic resonance
US4625169A (en) * 1984-08-10 1986-11-25 The General Hospital Corporation Flow imaging by means of nuclear magnetic resonance
IL74942A (en) * 1984-10-22 1988-11-30 Univ Leland Stanford Junior Flow measurement using nuclear magnetic resonance
US4656424A (en) * 1984-11-07 1987-04-07 Yuval Tsur Apparatus and methods for selective excitation
US4777957A (en) * 1985-06-14 1988-10-18 General Electric Company Method for measuring and imaging fluid flow
USRE34495E (en) * 1985-07-10 1994-01-04 Hitachi, Ltd. NMR imaging method
DE3686985T2 (de) * 1985-07-10 1993-04-29 Hitachi Ltd Verfahren zur bilderzeugung mittels magnetischer kernresonanz.
IL79691A0 (en) * 1985-08-14 1986-11-30 Brigham & Womens Hospital Measurement of capillary flow using nuclear magnetic resonance
US4788500A (en) * 1985-08-14 1988-11-29 Brigham & Women's Hospital Measurement of capillary flow using nuclear magnetic resonance
US4993414A (en) * 1985-08-16 1991-02-19 The Board Of Trustees Of The Leland Stanford Junior University Moving material projection imaging system using nuclear magnetic resonance
US4689560A (en) * 1985-08-16 1987-08-25 Picker International, Inc. Low R.F. dosage magnetic resonance imaging of high velocity flows
IL79686A (en) * 1985-08-16 1990-04-29 Univ Leland Stanford Junior Moving material projection imaging system using nuclear magnetic resonance
US4683431A (en) * 1985-08-16 1987-07-28 Picker International, Inc. Magnetic resonance imaging of high velocity flows
US4663591A (en) * 1985-08-16 1987-05-05 General Electric Company Method for reducing image artifacts due to periodic signal variations in NMR imaging
US4706026A (en) * 1985-08-16 1987-11-10 General Electric Company Method for reducing image artifacts due to periodic signal variations in NMR imaging
US4697149A (en) * 1985-11-04 1987-09-29 Wisconsin Alumni Research Foundation NMR flow imaging using a composite excitation field and magnetic field gradient sequence
US4746863A (en) * 1985-11-07 1988-05-24 The Regents Of The University Of California Contiguous slices in multi-slice MRI
DE3604281A1 (de) * 1986-02-12 1987-08-13 Philips Patentverwaltung Verfahren zur bestimmung der kernmagnetisierungsverteilung in einer schicht eines untersuchungsbereiches und kernspintomograph zur durchfuehrung des verfahrens
FR2598509B1 (fr) * 1986-05-06 1989-03-31 Thomson Cgr Procede de calibration de l'amplitude de l'excitation radiofrequence d'un appareil d'imagerie par resonance magnetique nucleaire
US4836209A (en) * 1986-08-07 1989-06-06 Stanford University NMR imaging of moving material using variable spatially selected excitation
EP0256733B1 (de) * 1986-08-07 1994-08-31 The Board Of Trustees Of The Leland Stanford Junior University Bilderzeugung von bewegendem Material durch magnetische Kernresonanz mittels räumlich veränderlicher selektiver Anregung
US4716367A (en) * 1986-08-15 1987-12-29 Brigham & Women's Hospital Creation and use of a moving reference frame for NMR imaging of flow
DE3627750A1 (de) * 1986-08-16 1988-02-18 Spectrospin Ag Verfahren zum bestimmen von beweglichem material innerhalb eines koerpers
US4739766A (en) * 1986-08-18 1988-04-26 Duke University NMR blood vessel imaging method and apparatus
US4770182A (en) * 1986-11-26 1988-09-13 Fonar Corporation NMR screening method
JPS63186639A (ja) * 1987-01-30 1988-08-02 株式会社日立製作所 血流イメ−ジング方式
US5124649A (en) * 1987-06-02 1992-06-23 Picker International, Inc. Magnetic resonance imaging with selective phase encoding averaging
IL84152A (en) * 1987-10-12 1991-06-10 Elscint Ltd Magnetic resonance spectroscopic measurements of restricted volumes
US5134373A (en) * 1988-03-31 1992-07-28 Kabushiki Kaisha Toshiba Magnetic resonance imaging apparatus employing optical viewing screen
US4995394A (en) * 1989-08-11 1991-02-26 General Electric Company Fast NMR cardiac profile imaging
JP2853232B2 (ja) * 1990-02-02 1999-02-03 株式会社日立製作所 核磁気共鳴を用いた流体イメージング装置
US5167232A (en) * 1990-08-07 1992-12-01 Ihc Hospitals, Inc. Magnetic resonance angiography by sequential multiple thin slab three dimensional acquisition
US5101156A (en) * 1990-08-09 1992-03-31 General Electric Rapid flow measurement using an nmr imaging system
US5093620A (en) * 1990-08-09 1992-03-03 General Electric Encoding for nmr phase contrast flow measurement
US5204625A (en) * 1990-12-20 1993-04-20 General Electric Company Segmentation of stationary and vascular surfaces in magnetic resonance imaging
US5225779A (en) * 1991-08-28 1993-07-06 Ihc Hospitals, Inc. Hybrid magnetic aresonance spatial and velocity imaging
US5706813A (en) * 1992-03-09 1998-01-13 University Of Washington Focal neurographic magnetic resonance imaging system
US5492123A (en) * 1993-08-13 1996-02-20 Siemens Medical Systems, Inc. Diffusion weighted magnetic resonance imaging
US5532593A (en) * 1993-11-01 1996-07-02 The Regents Of The University Of California Nuclear magnetic resonance imaging rheometer
US5786693A (en) * 1996-04-26 1998-07-28 Picker International, Inc. Batch multi-volume angiography using magnetic resonance imaging
DE19836592A1 (de) * 1998-08-12 2000-02-24 Siemens Ag Verfahren zur Flußquantifizierung mittels magnetischer Resonanz
US6795723B1 (en) * 2000-05-22 2004-09-21 Koninklijke Philips Electronics, N.V. Interleaved phase encoding acquisition for MRI with controllable artifact suppression and flexible imaging parameter selection
WO2002082376A2 (en) * 2001-04-06 2002-10-17 Regents Of The University Of California Method for analyzing mri diffusion data
JP2009050615A (ja) * 2007-08-29 2009-03-12 Ge Medical Systems Global Technology Co Llc 磁気共鳴イメージング装置および磁気共鳴画像表示方法

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3191119A (en) * 1962-06-05 1965-06-22 Jerome R Singer Apparatus for measuring flow using magnetic resoance
US3809070A (en) * 1971-07-01 1974-05-07 Doll Research Non-invasive electromagnetic bloodflow measuring system with rejection of noises
JPS49103693A (de) * 1973-02-02 1974-10-01
DE2501794A1 (de) * 1975-01-17 1976-07-22 Kraftwerk Union Ag Verfahren zum messen einer durch ein rohr stroemenden fluidmenge mit hilfe der magnetischen kernspinresonanz
US4037585A (en) * 1975-10-10 1977-07-26 Gildenberg Philip L Method of measuring blood flow by radiation
GB1580787A (en) * 1976-04-14 1980-12-03 Mansfield P Nuclear magnetic resonance apparatus and methods
US4205687A (en) * 1977-07-29 1980-06-03 Diagnostic Electronics Corporation Color coded blood flow velocity display equipment
DE2745039A1 (de) * 1977-10-06 1979-04-12 Euratom Vorrichtung zur massendurchsatzmessung mittels kernresonanz
US4182173A (en) * 1978-08-23 1980-01-08 General Electric Company Duplex ultrasonic imaging system with repetitive excitation of common transducer in doppler modality
CA1135827A (en) * 1978-12-04 1982-11-16 Rainer Fehr Determination of flow velocities by measuring phase difference between the doppler signals
US4318044A (en) * 1979-03-07 1982-03-02 National Research Development Corporation Methods of indicating nuclear spin density distribution
DE3010780A1 (de) * 1980-03-20 1981-09-24 Siemens AG, 1000 Berlin und 8000 München Strahlendiagnostikeinrichtung
US4374360A (en) * 1980-05-29 1983-02-15 Sepponen Raimo E NMR Diagnosis apparatus
DE3126643A1 (de) * 1981-07-06 1983-01-20 Siemens AG, 1000 Berlin und 8000 München "strahlendiagnostikgeraet"
DE3130006A1 (de) * 1981-07-30 1983-02-17 Daimler-Benz Ag, 7000 Stuttgart "verfahren zum messen einer durch ein rohr stroemenden fluidmenge"
EP0103372A3 (de) * 1982-08-11 1986-05-07 Picker International Limited Kernmagnetische Resonanzmethode und -Vorrichtung
US4516075A (en) * 1983-01-04 1985-05-07 Wisconsin Alumni Research Foundation NMR scanner with motion zeugmatography

Also Published As

Publication number Publication date
KR840009028A (ko) 1984-12-24
EP0124016A2 (de) 1984-11-07
US4516582A (en) 1985-05-14
FI840642A7 (fi) 1984-11-03
JPS605138A (ja) 1985-01-11
FI840642L (fi) 1984-11-03
FI840642A0 (fi) 1984-02-16
EP0124016A3 (de) 1986-04-09

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