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A wide range of ultrasound methods has been proposed to assess the mechanical strength of bone. The axial transmission technique, which consists of measuring guided elastic modes through the cortical shell of long bones such as the radius or tibia, has recently emerged as one of the most promising approaches of all bone exploration methods. Determination of dispersion curves of guided waves is therefore...
This paper presents the conception of a cMUTs probe for the cortical bone evaluation. A specific topology was designed in order to match the cMUTs technology to the requirements of the axial transmission measurement. We report here all the steps of the probe manufacturing from the design to the first post-process characterization of the cMUTs. The first results of axial transmission measurements performed...
Recent studies indicate that, despite absorption and heterogeneity, long cortical bones support guided waves propagation in the axial transmission configuration. Currently, there is a need to implement a robust method to extract guided mode wave numbers adapted to clinical requirements. Particularly the probe dimensions are limited by the accessibility to the skeletal site. Recently, an approach based...
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