Title :
A model for ultrasonic backscatter from trabecular bone
Author_Institution :
Center for Devices & Radiolog. Health, U.S. Food & Drug Adm., Rockville, MD, USA
Abstract :
A model describing the frequency dependence of backscatter from trabecular bone is presented. Scattering is assumed to originate from the surfaces of trabeculae, which are modeled as long thin cylinders. Measurements from human calcaneus in vitro are in good agreement with theory. For mediolateral insonification at diagnostic frequencies, backscatter coefficient is approximately proportional to frequency cubed. At higher frequencies, the frequency response flattens out
Keywords :
backscatter; biomedical ultrasonics; orthopaedics; physiological models; ultrasonic scattering; backscatter coefficient; diagnostic frequencies; frequency response; long thin cylinders; mediolateral insonification; trabecular bone; ultrasonic backscatter model; Acoustic scattering; Anthropometry; Backscatter; Cancellous bone; Drugs; Frequency dependence; Humans; Ultrasonic imaging; Ultrasonic variables measurement; X-ray scattering;
Conference_Titel :
Ultrasonics Symposium, 1999. Proceedings. 1999 IEEE
Conference_Location :
Caesars Tahoe, NV
Print_ISBN :
0-7803-5722-1
DOI :
10.1109/ULTSYM.1999.849237
