title: Combined estimation of thickness and velocities using ultrasound guided waves: a pioneering study on in vitro cortical bone samples.
abstract: This paper reports for the first time on inverse estimation of several bone properties from guided-wave measurements in human bone samples. Previously, related approaches have focused on ultrasonic estimation of a single bone property at a time. The method is based on two steps: the multi-Lamb mode response is analyzed using the singular value decomposition signal processing method recently introduced in the field, then an identification procedure is run to find thickness and anisotropic elastic properties of the considered specimen. Prior to the measurements on bone, the method is validated on cortical bone-mimicking phantoms. The repeatability and the trueness of the estimated parameters on bone-mimicking phantoms were found around a few percent. Estimation of cortical thickness on bone samples was in good agreement with cortical thickness derived from high-resolution peripheral quantitative computed tomography data analysis of the samples.
authors.forename: Josquin
authors.initials: J
authors.lastname: Foiret
authors.forename: Jean-Gabriel
authors.initials: JG
authors.lastname: Minonzio
authors.forename: Christine
authors.initials: C
authors.lastname: Chappard
authors.forename: Maryline
authors.initials: M
authors.lastname: Talmant
authors.forename: Pascal
authors.initials: P
authors.lastname: Laugier
mesh_terms: D001842:Bone and Bones / Q000000981:diagnostic imaging*; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D019047:Phantoms, Imaging; D015203:Reproducibility of Results; D014463:Ultrasonography / Q000379:methods*