Characterization of circumferential guided waves in a cylindrical cortical bone-mimicking phantom
Author(s) -
Pierre Nauleau,
Étienne Cochard,
Jean-Gabriel Mizio,
Quentin Grimal,
Pascal Laugier,
Claire Prada
Publication year - 2012
Publication title -
the journal of the acoustical society of america
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.619
H-Index - 187
eISSN - 1520-8524
pISSN - 0001-4966
DOI - 10.1121/1.3687016
Subject(s) - imaging phantom , tube (container) , guided wave testing , materials science , cortical bone , optics , acoustics , biomedical engineering , physics , anatomy , composite material , medicine
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.
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