NL8700700A - Werkwijze voor het verkrijgen van een kernspinresonantiesignaal van een bewegend fluidum en inrichting voor het uitvoeren hiervan. - Google Patents

Werkwijze voor het verkrijgen van een kernspinresonantiesignaal van een bewegend fluidum en inrichting voor het uitvoeren hiervan. Download PDF

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Publication number
NL8700700A
NL8700700A NL8700700A NL8700700A NL8700700A NL 8700700 A NL8700700 A NL 8700700A NL 8700700 A NL8700700 A NL 8700700A NL 8700700 A NL8700700 A NL 8700700A NL 8700700 A NL8700700 A NL 8700700A
Authority
NL
Netherlands
Prior art keywords
magnetic field
field component
fluid
spin
signal
Prior art date
Application number
NL8700700A
Other languages
English (en)
Dutch (nl)
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Priority to NL8700700A priority Critical patent/NL8700700A/nl
Priority to US07/170,480 priority patent/US4862080A/en
Priority to DE88200536T priority patent/DE3881432T2/de
Priority to EP88200536A priority patent/EP0287146B1/de
Priority to JP63070827A priority patent/JPS63266314A/ja
Publication of NL8700700A publication Critical patent/NL8700700A/nl

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Classifications

    • 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
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/026—Measuring blood flow
    • A61B5/0263—Measuring blood flow using NMR
    • 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

Landscapes

  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Cardiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Biophysics (AREA)
  • Physiology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Pathology (AREA)
  • Vascular Medicine (AREA)
  • Radiology & Medical Imaging (AREA)
  • Signal Processing (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Hematology (AREA)
  • Fluid Mechanics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Measuring Volume Flow (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
NL8700700A 1987-03-25 1987-03-25 Werkwijze voor het verkrijgen van een kernspinresonantiesignaal van een bewegend fluidum en inrichting voor het uitvoeren hiervan. NL8700700A (nl)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL8700700A NL8700700A (nl) 1987-03-25 1987-03-25 Werkwijze voor het verkrijgen van een kernspinresonantiesignaal van een bewegend fluidum en inrichting voor het uitvoeren hiervan.
US07/170,480 US4862080A (en) 1987-03-25 1988-03-21 Method of deriving a spin resonance signal from a moving fluid, and device for performing this method
DE88200536T DE3881432T2 (de) 1987-03-25 1988-03-23 Verfahren zum Erzeugen eines Kernspinresonanzsignals von einer sich bewegenden Flüssigkeit.
EP88200536A EP0287146B1 (de) 1987-03-25 1988-03-23 Verfahren zum Erzeugen eines Kernspinresonanzsignals von einer sich bewegenden Flüssigkeit
JP63070827A JPS63266314A (ja) 1987-03-25 1988-03-24 スピン共鳴信号取り出し方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8700700 1987-03-25
NL8700700A NL8700700A (nl) 1987-03-25 1987-03-25 Werkwijze voor het verkrijgen van een kernspinresonantiesignaal van een bewegend fluidum en inrichting voor het uitvoeren hiervan.

Publications (1)

Publication Number Publication Date
NL8700700A true NL8700700A (nl) 1988-10-17

Family

ID=19849760

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8700700A NL8700700A (nl) 1987-03-25 1987-03-25 Werkwijze voor het verkrijgen van een kernspinresonantiesignaal van een bewegend fluidum en inrichting voor het uitvoeren hiervan.

Country Status (5)

Country Link
US (1) US4862080A (de)
EP (1) EP0287146B1 (de)
JP (1) JPS63266314A (de)
DE (1) DE3881432T2 (de)
NL (1) NL8700700A (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5190744A (en) * 1990-03-09 1993-03-02 Salutar Methods for detecting blood perfusion variations by magnetic resonance imaging
US6994841B1 (en) * 1990-03-09 2006-02-07 Kucharczyk And Moseley Partners Relating to magnetic resonance imaging
US5194809A (en) * 1990-06-30 1993-03-16 Lew Hyok S Nmr-scope
EP0584112B1 (de) * 1991-03-08 1999-11-10 Foxboro NMR, Ltd. Apparat zur "in-line"-analyse von strömenden flüssigkeiten und festen materialien mittels magnetischer kernresonanz
US5309100A (en) * 1992-10-30 1994-05-03 Board Of Trustees Of The Leland Stanford Junior University Flow measurement of incompressible fluid using divergence-free constraint
JP4334049B2 (ja) * 1999-02-26 2009-09-16 株式会社東芝 Ｍｒｉ装置
CA2414610A1 (en) * 2000-07-13 2002-01-24 Medi-Physics, Inc. Diagnostic procedures using 129xe spectroscopy characteristic chemical shift to detect pathology in vivo
DE102012013933B4 (de) * 2012-07-16 2023-12-07 Krohne Ag Verfahren und Vorrichtung zum Kalibrieren von kernmagnetischen Durchflussmessgeräten
DE102014010324B3 (de) * 2014-05-23 2015-02-05 Krohne Ag Kernmagnetisches Durchflussmessgerät und Verfahren zum Betreiben eines kernmagnetischen Durchflussmessgeräts

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5985651A (ja) * 1982-11-08 1984-05-17 株式会社東芝 診断用核磁気共鳴装置
US4587489A (en) * 1983-10-07 1986-05-06 General Electric Company Method for rapid acquisition of NMR data
GB8417290D0 (en) * 1984-07-06 1984-08-08 Picker Int Ltd Nuclear magnetic resonance method
IL74942A (en) * 1984-10-22 1988-11-30 Univ Leland Stanford Junior Flow measurement using nuclear magnetic resonance
US4654591A (en) * 1985-07-29 1987-03-31 Wisconsin Alumni Research Foundation NMR flow imaging using bi-phasic excitation field gradients

Also Published As

Publication number Publication date
EP0287146A2 (de) 1988-10-19
JPS63266314A (ja) 1988-11-02
DE3881432T2 (de) 1993-12-23
EP0287146A3 (en) 1989-05-24
DE3881432D1 (de) 1993-07-08
US4862080A (en) 1989-08-29
EP0287146B1 (de) 1993-06-02

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