Characterization of the fast wave in cancellous bone using the Bayesian probability theory approach

摘要

Bayesian probability approach with a simple model was introduced for the analysis of two wave propagation phenomenon in the cancellous bone. The fast and slow waves could be estimated from the experimentally observed wave. The reproduced wave made by these estimated fast and slow waves was compared with the initial experimental wave using a wavelet technique. The high frequency component of the reproduced wave corresponded to the slow wave and showed similar temporal-frequency characteristics of the experimental wave. The low frequency component of the reproduced wave, however, showed a small difference from the experimental wave. Although the model used in this study was very simple and still incomplete, the estimation of two waves was relatively good. Introduction of more appropriate model will bring us better estimation of the two wave propagation.