Evaluating periodicity of trabecular bone phantoms using ultrasound signals

Author

Rosa, P.T.C.R. ; Matusin, D.P. ; Pereira, A.J.F. ; Machado, C.B. ; Pereira, W.C.A.

Author_Institution

Biomed. Eng. Program, Fed. Univ. of Rio de Janeiro, Rio de Janeiro, Brazil

fYear

2011

fDate

March 28 2011-April 1 2011

Firstpage

309

Lastpage

313

Abstract

The aim of this work was to characterize the periodicity of a commercial available trabecular bone phantom with ultrasound (US) backscattered signals. Three US frequencies were applied (1.0, 2.25 and 5.0 MHz), and spectral analysis methods were used to estimate the mean scatterer spacing (MSS) of 100 signals/sample from five different samples. The results showed that it is possible to estimate the medium periodicity (trabecular spacings varying from 1.5 to 2.5 mm), and at higher frequencies the average MSS decreased, which is expected because of a higher spatial resolution (identification of the trabecular thickness periodicity). MSS values are in agreement with intertrabecular distances declared by the product supplier.

Keywords

backscatter; biomedical ultrasonics; bone; phantoms; ultrasonic scattering; intertrabecular distances; mean scatterer spacing; periodicity; spectral analysis methods; trabecular bone phantoms; ultrasound backscattered signals; ultrasound signals; Acoustics; Bones; Conferences; Frequency estimation; IEEE catalog; Phantoms; Ultrasonic imaging; Mean scatterer spacing; periodicity; phantom; ultrasound;

fLanguage

English

Publisher

ieee

Conference_Titel

Health Care Exchanges (PAHCE), 2011 Pan American

Conference_Location

Rio de Janeiro

Print_ISBN

978-1-61284-915-7

Type

conf

DOI

10.1109/PAHCE.2011.5871911

Filename

5871911