Title :
Predict Ultrasonic Backscatter Coefficient in Cancellous Bone by Theory and Experiment
Author :
Ta, De-an ; Huang, Kai ; Wang, Wei-qi ; Wang, Yuan-yuan
Author_Institution :
Dept. of Electron. Eng., Fudan Univ., Shanghai
Abstract :
The scattering mechanism of ultrasound in cancellous bone is investigated theoretically. The relationship of backscatter coefficient (BSC) in cancellous bone with frequency is analyzed in theoretical and experimental. The results of theory and experiment for cancellous bone of bovine tibiae, human calcaneus in vitro and in vivo showed that BSC is a non-linear function of frequency, increasing with frequency. In general, all curve of BSC can be divided into three sections with different slope. The slopes of the first and third section have a large value, and the slope of second section is flat. A good agreement was obtained in the averaged BSC of experiment and cellular model. Those results suggest that the backscatter signal and BSC have a particularly important action in assessment of cancellous bone status and diagnosis of osteoporosis
Keywords :
biomedical ultrasonics; bone; cellular biophysics; diseases; physiological models; bovine tibiae; cancellous bone; cellular model; human calcaneus; osteoporosis diagnosis; ultrasonic backscatter coefficient; Backscatter; Bovine; Cancellous bone; Frequency; Humans; In vitro; In vivo; Osteoporosis; Scattering; Ultrasonic imaging;
Conference_Titel :
Engineering in Medicine and Biology Society, 2005. IEEE-EMBS 2005. 27th Annual International Conference of the
Conference_Location :
Shanghai
Print_ISBN :
0-7803-8741-4
DOI :
10.1109/IEMBS.2005.1616620
