Assessing condition of a joint and cartilage loss

Details Assessing condition of a joint and cartilage loss Assessing condition of a joint and cartilage loss

A - Human Necessities

61

B

A61B 5/055 (2006.01) A61B 5/103 (2006.01) G01R 33/50 (2006.01) G01R 33/56 (2006.01) G06T 5/00 (2006.01) G06T 7/00 (2006.01) A61B 5/107 (2006.01)

Patent

CA 2425089

Methods are disclosed for assessing the condition of a cartilage in a joint and assessing cartilage loss, particularly in a human knee. The methods include converting an image such as an MRI to a three dimensional map of the cartilage. The cartilage map can be correlated to a movement pattern of the joint to assess the affect of movement on cartilage wear. Changes in the thickness of cartilage over time can be determined so that therapies can be provided. The amount of cartilage tissue that has been lost, for example as a result of arthritis, can be estimated.

L'invention concerne des méthodes d'évaluation de l'état d'un cartilage dans une articulation et d'une perte de cartilage, en particulier dans un genou humain. Ces méthodes consistent à convertir une image, par exemple une IRM, en reconstruction tridimensionnelle du cartilage. La reconstruction du cartilage peut être mise en corrélation avec une caractéristique de mouvement de l'articulation afin d'évaluer l'effet du mouvement sur l'usure du cartilage. Les changements d'épaisseur du cartilage avec le temps peuvent être déterminés afin de pouvoir appliquer des thérapies. L'invention permet d'évaluer la quantité de tissu cartilagineux qui a été perdue, par exemple à cause de l'arthrite.

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