Title:
ASSESSING THE CONDITION OF A JOINT AND PREVENTING DAMAGE
Document Type and Number:
WIPO Patent Application WO2000035346
Kind Code:
A3
Abstract:
Methods are disclosed for assessing the condition of a cartilage in a joint, particularly a human knee. The methods include converting an image such as an MRI to a three dimensional map of the cartilage. The cartilage map is then correlated to a movement pattern of the joint to assess the affect of movement on cartilage wear. Reference markers useful in obtaining internal images of the cartilage and bone and external images of the limbs in a motion are described. The markers aid in correlating the various images. Changes in the thickness of cartilage over time can be determined so that therapies can be provided.
Inventors:
ALEXANDER EUGENE J (US)
ANDRIACCHI THOMAS P (US)
LANG PHILIPP (US)
NAPEL SANDY A (US)
ANDRIACCHI THOMAS P (US)
LANG PHILIPP (US)
NAPEL SANDY A (US)
Application Number:
PCT/US1999/030265
Publication Date:
October 26, 2000
Filing Date:
December 16, 1999
Export Citation:
Assignee:
UNIV STANFORD (US)
ALEXANDER EUGENE J (US)
ANDRIACCHI THOMAS P (US)
LANG PHILIPP (US)
NAPEL SANDY A (US)
ALEXANDER EUGENE J (US)
ANDRIACCHI THOMAS P (US)
LANG PHILIPP (US)
NAPEL SANDY A (US)
International Classes:
G01R33/48; A61B5/055; A61B5/11; A61B8/08; G06T1/00; G06T7/00; G06T7/20; G06T7/60; H04N7/18; (IPC1-7): A61B5/11
Foreign References:
| US5413116A | 1995-05-09 | |||
| US4813436A | 1989-03-21 | |||
| US4699156A | 1987-10-13 | |||
| US4655227A | 1987-04-07 | |||
| US5320102A | 1994-06-14 | |||
| US5445152A | 1995-08-29 |
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