IL123784A - שיטה לשליפת עיוותים מתמונות תהודה מגנטית של הלב המקודדות לפי מהירות - Google Patents

שיטה לשליפת עיוותים מתמונות תהודה מגנטית של הלב המקודדות לפי מהירות

Info

Publication number
IL123784A
IL123784A IL12378498A IL12378498A IL123784A IL 123784 A IL123784 A IL 123784A IL 12378498 A IL12378498 A IL 12378498A IL 12378498 A IL12378498 A IL 12378498A IL 123784 A IL123784 A IL 123784A
Authority
IL
Israel
Prior art keywords
velocity
image
organ
motion
heart
Prior art date
Application number
IL12378498A
Other languages
English (en)
Other versions
IL123784A0 (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 IL123784A0 publication Critical patent/IL123784A0/xx
Publication of IL123784A publication Critical patent/IL123784A/he

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
    • A61B5/7203—Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal
    • A61B5/7207—Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal of noise induced by motion artifacts
    • 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
    • G01R33/54—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
    • 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
    • G01R33/567—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution gated by physiological signals, i.e. synchronization of acquired MR data with periodical motion of an object of interest, e.g. monitoring or triggering system for cardiac or respiratory gating
    • G01R33/5673—Gating or triggering based on a physiological signal other than an MR signal, e.g. ECG gating or motion monitoring using optical systems for monitoring the motion of a fiducial marker

Landscapes

  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Signal Processing (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Veterinary Medicine (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Artificial Intelligence (AREA)
  • Vascular Medicine (AREA)
  • Physiology (AREA)
  • Psychiatry (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
IL12378498A 1997-04-11 1998-03-23 שיטה לשליפת עיוותים מתמונות תהודה מגנטית של הלב המקודדות לפי מהירות IL123784A (he)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US4389097P 1997-04-11 1997-04-11
US08/937,725 US6031374A (en) 1997-04-11 1997-09-25 Method for extracting deformations from velocity-encoded magnetic resonance images of the heart

Publications (2)

Publication Number Publication Date
IL123784A0 IL123784A0 (en) 1998-10-30
IL123784A true IL123784A (he) 2001-05-20

Family

ID=26720937

Family Applications (1)

Application Number Title Priority Date Filing Date
IL12378498A IL123784A (he) 1997-04-11 1998-03-23 שיטה לשליפת עיוותים מתמונות תהודה מגנטית של הלב המקודדות לפי מהירות

Country Status (4)

Country Link
US (1) US6031374A (he)
JP (1) JPH11321A (he)
DE (1) DE19813733A1 (he)
IL (1) IL123784A (he)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
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WO1998056294A1 (en) * 1997-06-12 1998-12-17 The Johns Hopkins University School Of Medicine Method for measuring myocardial motion and the like
US6236738B1 (en) * 1998-04-09 2001-05-22 Board Of Trustees Of The Leland Stanford Junior University Spatiotemporal finite element method for motion analysis with velocity data
DE19853964C1 (de) * 1998-11-23 2000-05-18 Siemens Ag Verfahren zur Aufnahme von Röntgenbildern eines sich im wesentlichen rythmisch bewegenden Gefäßes oder Organs sowie Röntgenanlage zur Durchführung des Verfahrens
US6188922B1 (en) * 1999-01-08 2001-02-13 Wisconsin Alumni Research Foundation Phase contrast imaging using interleaved projection data
US6114852A (en) * 1999-01-23 2000-09-05 General Electric Company Method employing point source to determine motion induced errors in MR imaging
JP4732648B2 (ja) * 1999-08-05 2011-07-27 アメリカ合衆国 磁気共鳴映像法において位相ラベル付けにより目標の内部の運動および全体的な運動の写像を得る方法および装置
US6352507B1 (en) * 1999-08-23 2002-03-05 G.E. Vingmed Ultrasound As Method and apparatus for providing real-time calculation and display of tissue deformation in ultrasound imaging
US6771803B1 (en) * 2000-11-22 2004-08-03 Ge Medical Systems Global Technology Company, Llc Method and apparatus for fitting a smooth boundary to segmentation masks
US6470070B2 (en) 2000-12-20 2002-10-22 Cedara Software Corp. Image reconstruction using multiple X-ray projections
US6473488B2 (en) 2000-12-20 2002-10-29 Cedara Software Corp. Three dimensional image reconstruction from single plane X-ray fluorograms
EP1225545A1 (fr) * 2001-01-23 2002-07-24 Koninklijke Philips Electronics N.V. Procédé de traitement d'images permettant de suivre la déformation d'un organe dans le temps
GB0122405D0 (en) * 2001-09-17 2001-11-07 Royal Brompton & Harefield Nhs Magnetic resonance imaging
WO2003042711A1 (en) * 2001-11-12 2003-05-22 Wisconsin Alumni Research Foundation Three-dimensional phase contrast magnetic resonance imaging using interleaved projection-reconstruction data
US7561909B1 (en) 2002-09-16 2009-07-14 The United States Of America As Represented By The Department Of Health And Human Services MRI navigator methods and systems
US7993285B2 (en) * 2002-11-05 2011-08-09 Boston Scientific Scimed, Inc. Medical device having flexible distal tip
DE10256209B4 (de) * 2002-12-02 2007-06-21 Siemens Ag Verfahren zur automatischen Bestimmung des tatsächlichen Geschwindigkeitsintervalls eines fließenden Mediums bei Flussmessungen in der Magnetresonanz-Tomographie sowie Kernspintomographiegerät und Computersoftwareprodukt
DE102004044698A1 (de) * 2004-09-15 2006-03-30 Siemens Ag Verfahren zur Beseitigung von Ringartefakten aus mit einem Computertomographiegerät erzeugten Schichtbildern
US7457655B2 (en) * 2004-10-08 2008-11-25 Mayo Foundation For Medical Education And Research Motion correction of magnetic resonance images using moments of spatial projections
US7813537B2 (en) * 2006-05-15 2010-10-12 Siemens Medical Solutions Usa, Inc. Motion-guided segmentation for cine DENSE images
EP2074551A4 (en) * 2006-10-25 2011-10-12 Rcadia Medical Imaging Ltd METHOD AND SYSTEM FOR THE AUTOMATIC ANALYSIS OF BLOOD VESSEL STRUCTURES AND PATHOLOGIES
US7940970B2 (en) * 2006-10-25 2011-05-10 Rcadia Medical Imaging, Ltd Method and system for automatic quality control used in computerized analysis of CT angiography
US7983459B2 (en) 2006-10-25 2011-07-19 Rcadia Medical Imaging Ltd. Creating a blood vessel tree from imaging data
US7940977B2 (en) * 2006-10-25 2011-05-10 Rcadia Medical Imaging Ltd. Method and system for automatic analysis of blood vessel structures to identify calcium or soft plaque pathologies
US8271070B2 (en) * 2007-10-04 2012-09-18 Siemens Aktiengesellschaft Method for monitoring myocardial wall thickness
US8320647B2 (en) 2007-11-20 2012-11-27 Olea Medical Method and system for processing multiple series of biological images obtained from a patient
US8478012B2 (en) * 2009-09-14 2013-07-02 General Electric Company Methods, apparatus and articles of manufacture to process cardiac images to detect heart motion abnormalities
US9585568B2 (en) * 2011-09-11 2017-03-07 Steven D. Wolff Noninvasive methods for determining the pressure gradient across a heart valve without using velocity data at the valve orifice
US9014781B2 (en) 2012-04-19 2015-04-21 General Electric Company Systems and methods for magnetic resonance angiography
DE102014209803B4 (de) 2014-05-22 2016-03-03 Siemens Aktiengesellschaft 4D-Geschwindigkeitsprofil-Bildaufnahme mit einer Magnetresonanzanlage

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5408180A (en) * 1993-08-13 1995-04-18 Wisconsin Alumni Research Foundation Measurement of flow using a complex difference method of magnetic resonance imaging
US5825186A (en) * 1994-10-19 1998-10-20 Mayo Foundation For Medical Education And Research Method for producing stiffness-weighted MR images
US5592085A (en) * 1994-10-19 1997-01-07 Mayo Foundation For Medical Education And Research MR imaging of synchronous spin motion and strain waves
US5680862A (en) * 1995-02-01 1997-10-28 The Board Of Trustees Of The Leland Stanford Junior University Iterative method of determining trajectory of a moving region in a moving material using velocity measurements in a fixed frame of reference

Also Published As

Publication number Publication date
DE19813733A1 (de) 1998-10-15
US6031374A (en) 2000-02-29
IL123784A0 (en) 1998-10-30
JPH11321A (ja) 1999-01-06

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