Prediction of ultrasound attenuation in cancellous bones using poroelasticity and scattering theories

Author

Padilla, Frédéric ; Laugier, Pascal

Author_Institution

Lab. d´´Imagerie Paramatrique, Paris VI Univ., France

Volume

2

fYear

2001

fDate

2001

Firstpage

1201

Abstract

An heuristic model combining scattering and absorption is proposed to predict attenuation in trabecular bones. Trabecular bone is a highly porous material composed of a fluid-saturated trabecular network of plates and struts. Scattering is described using a weak scattering medium model. A close agreement is observed between theoretical and experimental backscatter coefficients. Absorption is described using the poroelasticity model developed by Blot. The total theoretical attenuation coefficient is approximately 4 dB below the experimental one. This is a significant improvement compared to the previous published models

Keywords

backscatter; biomedical ultrasonics; bone; ultrasonic absorption; ultrasonic scattering; Biot model; attenuation coefficient; backscatter coefficients; cancellous bones; fluid-saturated network; heuristic model; poroelasticity; scattering theories; trabecular bones; ultrasound attenuation; weak scattering medium model; Absorption; Attenuation measurement; Backscatter; Cancellous bone; Frequency measurement; Osteoporosis; Predictive models; Scattering; Synchrotron radiation; Ultrasonic imaging;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 2001 IEEE

Conference_Location

Atlanta, GA

Print_ISBN

0-7803-7177-1

Type

conf

DOI

10.1109/ULTSYM.2001.991934

Filename

991934