WO2001032079A3 - Evaluating disease progression using magnetic resonance imaging - Google Patents

Evaluating disease progression using magnetic resonance imaging Download PDF

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Publication number
WO2001032079A3
WO2001032079A3 PCT/CA2000/001273 CA0001273W WO0132079A3 WO 2001032079 A3 WO2001032079 A3 WO 2001032079A3 CA 0001273 W CA0001273 W CA 0001273W WO 0132079 A3 WO0132079 A3 WO 0132079A3
Authority
WO
WIPO (PCT)
Prior art keywords
magnetic resonance
data sets
resonance imaging
imaging
disease progression
Prior art date
Application number
PCT/CA2000/001273
Other languages
French (fr)
Other versions
WO2001032079A2 (en
Inventor
Jean-Pierre Pelletier
Johane Pelletier
Guise Jacques De
Jean-Pierre Raynauld
Marie-Josee Berthiaume
Gilles Beaudoin
Benoit Godbout
Claude Kauffmann
Original Assignee
Arthrolab Inc
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=22587475&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2001032079(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Arthrolab Inc filed Critical Arthrolab Inc
Priority to AT00972501T priority Critical patent/ATE308056T1/en
Priority to DE60023540T priority patent/DE60023540T2/en
Priority to CA002427590A priority patent/CA2427590C/en
Priority to EP00972501A priority patent/EP1230561B1/en
Priority to AU11224/01A priority patent/AU1122401A/en
Publication of WO2001032079A2 publication Critical patent/WO2001032079A2/en
Publication of WO2001032079A3 publication Critical patent/WO2001032079A3/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
    • G01R33/44—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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/50—Image enhancement or restoration using two or more images, e.g. averaging or subtraction
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/0002—Inspection of images, e.g. flaw detection
    • G06T7/0012—Biomedical image inspection
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/45—For evaluating or diagnosing the musculoskeletal system or teeth
    • A61B5/4504—Bones
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/45—For evaluating or diagnosing the musculoskeletal system or teeth
    • A61B5/4514—Cartilage
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/45—For evaluating or diagnosing the musculoskeletal system or teeth
    • A61B5/4528—Joints
    • 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
    • G01R33/5608—Data processing and visualization specially adapted for MR, e.g. for feature analysis and pattern recognition on the basis of measured MR data, segmentation of measured MR data, edge contour detection on the basis of measured MR data, for enhancing measured MR data in terms of signal-to-noise ratio by means of noise filtering or apodization, for enhancing measured MR data in terms of resolution by means for deblurring, windowing, zero filling, or generation of gray-scaled images, colour-coded images or images displaying vectors instead of pixels

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Theoretical Computer Science (AREA)
  • Medical Informatics (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Quality & Reliability (AREA)
  • Signal Processing (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)

Abstract

An orthopedic magnetic resonance imaging system and imaging methods are provided. The system includes a source of imaging data sets from imaging a diseased joint of a patient, and is operative to segment surfaces in a joint based on information contained within at least one of the data sets, to register in three dimensions information represented by a data set with respect to information represented by one or more further data sets, and to detect differences between information represented by the data sets caused by progression of disease in the joint.
PCT/CA2000/001273 1999-11-01 2000-11-01 Evaluating disease progression using magnetic resonance imaging WO2001032079A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AT00972501T ATE308056T1 (en) 1999-11-01 2000-11-01 EVALUATION OF THE DEVELOPMENT OF A DISEASE USING A MAGNETIC RESONANCE IMAGING DEVICE
DE60023540T DE60023540T2 (en) 1999-11-01 2000-11-01 INVESTIGATION OF DISEASE DEVELOPMENT THROUGH THE USE OF NUCLEAR RESONANCE TOMOGRAPHY
CA002427590A CA2427590C (en) 1999-11-01 2000-11-01 Evaluating disease progression using magnetic resonance imaging
EP00972501A EP1230561B1 (en) 1999-11-01 2000-11-01 Evaluating disease progression using magnetic resonance imaging
AU11224/01A AU1122401A (en) 1999-11-01 2000-11-01 Evaluating disease progression using magnetic resonance imaging

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US16287199P 1999-11-01 1999-11-01
US60/162,871 1999-11-01

Publications (2)

Publication Number Publication Date
WO2001032079A2 WO2001032079A2 (en) 2001-05-10
WO2001032079A3 true WO2001032079A3 (en) 2001-11-29

Family

ID=22587475

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA2000/001273 WO2001032079A2 (en) 1999-11-01 2000-11-01 Evaluating disease progression using magnetic resonance imaging

Country Status (9)

Country Link
US (4) US6560476B1 (en)
EP (1) EP1230561B1 (en)
AT (1) ATE308056T1 (en)
AU (1) AU1122401A (en)
CA (2) CA2427590C (en)
DE (1) DE60023540T2 (en)
DK (1) DK1230561T3 (en)
ES (1) ES2250205T3 (en)
WO (1) WO2001032079A2 (en)

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