Methods and apparatus for evaluation of bone condition

A - Human Necessities – 61 – B

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A61B 8/00 (2006.01) A61B 8/08 (2006.01) A61B 18/14 (2006.01)

Patent

CA 2238321

A method of evaluating the status of bone tissue useful in the diagnosis of osteoporosis comprises measuring a characteristic of ultrasound transmission through the calcaneus at a number of locations at an image forming degree of spatial resolution, deriving from said measurements information regarding the location of an approximately circular (as seen by measurements from the side) area of reduced attenuation in the calcaneus, optionally making further ultrasound measurements which reflect said bone tissue status, and evaluating said bone tissue status based on such said measurements and/or said further measurements at said location.

Ce procédé d'évaluation de l'état d'un tissu osseux, utile dans le diagnostic de l'ostéoporose, consiste à mesurer une caractéristique d'une émission d'ultrasons à travers le calcanéum, au niveau d'un certain nombres d'emplacements et à un degré de formation d'image de résolution spatiale, puis à dériver de ces mesures des informations relatives à l'emplacement d'une zone approximativement circulaire (telle que vue par les mesures prises latéralement) de moindre atténuation des ultrasons dans le calcanéum, le cas échéant, à effectuer d'autres mesures aux ultrasons, reflétant l'état du tissu osseux, et enfin à évaluer l'état du tissu osseux d'après lesdites mesures et/ou d'après les mesures ultérieures effectuées au niveau dudit emplacement.

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