title: Characterization of circumferential guided waves in a cylindrical cortical bone-mimicking phantom.
abstract: The femoral neck cortical shell was recently demonstrated to act like a waveguide for circumferential waves. Femoral neck assessment with ultrasound could be enhanced by guided waves measurement. In this study, the decomposition of the time reversal operator (DORT) method is used to measure the phase velocities of circumferential guided modes in a circular tube with dimensions characteristic of femoral neck. The tube is made of a bone-mimicking material. Five guided modes are obtained and compared to theoretical predictions. The work substantiates the feasibility of measuring guided waves in a relatively thick tube of attenuating material with the DORT method.
authors.affiliation: Laboratoire d'Imagerie Paramétrique, UPMC Univ Paris 06, CNRS UMR 7623, 15 rue de l'École de Médecine, F-75006 Paris, France. pierre.nauleau@upmc.fr
authors.forename: Pierre
authors.initials: P
authors.lastname: Nauleau
authors.forename: Etienne
authors.initials: E
authors.lastname: Cochard
authors.forename: Jean-Gabriel
authors.initials: JG
authors.lastname: Minonzio
authors.forename: Quentin
authors.initials: Q
authors.lastname: Grimal
authors.forename: Pascal
authors.initials: P
authors.lastname: Laugier
authors.forename: Claire
authors.initials: C
authors.lastname: Prada
mesh_terms: D015519:Bone Density / Q000502:physiology; D005272:Femur Neck / Q000000981:diagnostic imaging / Q000502:physiology*; D006801:Humans; D008953:Models, Anatomic; D014465:Ultrasonics; D014463:Ultrasonography