Three-dimensional tissue hardness imaging

Details Three-dimensional tissue hardness imaging Three-dimensional tissue hardness imaging

A - Human Necessities

61

B

A61B 8/12 (2006.01)

Patent

CA 2457578

A method for generating hardness information of tissue subject to a varying pressure. The method comprises receiving signals from the tissue with a sensor for measuring the deformation of the tissue in a measuring plane defined by the sensor, which sensor, during a varying pressure exerted on the tissue, is moved along the tissue in a direction transverse to the measuring plane; identifying strain of the tissue from the resulting signals; and relating the strain to elasticity and/or hardness parameters of the tissue. The method may comprise the step of displaying elasticity and/or hardness parameters of a tissue surface or tissue volume part extending practically parallel to the direction of motion of the sensor.

L'invention concerne un procédé destiné à générer des informations relative à la dureté des tissus soumis à une variation de pression. Ce procédé consiste à recevoir des signaux de ces tissus au moyen d'un capteur destiné à mesurer la déformation de ces tissus dans un plan de mesure défini par le capteur, ce capteur étant déplacé le long des tissus dans une direction transversale au plan de mesure durant une variation de pression exercée sur les tissus; à identifier la contrainte des tissus à partir des signaux obtenus; et à mette en relation la contrainte avec les paramètres d'élasticité et/ou de dureté des tissus. Ce procédé comprend également l'étape d'affichage des paramètres d'élasticité et/ou de dureté d'une surface de tissu ou d'un volume de tissu s'étendant sensiblement en parallèle de la direction de déplacement du capteur.

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