scholarly journals Measurement and compensation of frequency-dependent attenuation in ultrasonic backscatter signal from cancellous bone

2019 ◽  
Vol 68 (18) ◽  
pp. 184301
Author(s):  
Rui Dong ◽  
Cheng-Cheng Liu ◽  
Xun-Bin Cai ◽  
Liu-Lei Shao ◽  
Bo-Yi Li ◽  
...  
Keyword(s):  
Cancellous Bone ◽  
Backscatter Signal ◽  
Frequency Dependent ◽  
Ultrasonic Backscatter

scholarly journals Variability in Ultrasound Backscatter Induced by Trabecular Microstructure Deterioration in Cancellous Bone

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Xingxing Chou ◽  
Feng Xu ◽  
Ying Li ◽  
Chengcheng Liu ◽  
Dean Ta ◽  
...  
Keyword(s):  
Cancellous Bone ◽  
Fdtd Method ◽  
Bone Microstructure ◽  
Backscatter Coefficient ◽  
Backscatter Signal ◽  
Trabecular Microstructure ◽  
Ultrasound Backscatter ◽  
Ultrasonic Backscatter ◽  
The Relationship ◽  
Difference Time

To determine the relationship between the ultrasonic backscatter parameters and trabecular microstructural variations in cancellous bone, three erosion procedures were performed to simulate various changes in the cancellous bone microstructure. The finite difference time domain (FDTD) method was used to simulate the backscatter signal in cancellous bone. Ultrasonic backscatter properties were derived as functions of the porosity when the ultrasound incident directions were perpendicular and parallel to the major trabeculae direction (MTD), respectively. The variability in the apparent backscatter coefficient (ABC) and apparent integrated backscatter (AIB) due to the trabecular microstructure was revealed. Significant negative correlations between the backscatter parameters (ABC and AIB) and the porosity of the cancellous bone were observed. The simulations showed that the ABC and AIB were influenced by the direction of the trabecular microstructural variations. The linear regressions between the ultrasonic backscatter parameters (ABC and AIB) and the porosity showed significantly different slopes for three erosion procedures when they are ultrasonically perpendicular (for ABC, −1.22 dB, −0.98 dB, and −0.46 dB; for AIB, −0.74 dB, −0.69 dB, and −0.25 dB) and parallel (for ABC, −1.87 dB, −0.69 dB, and −0.51 dB; for AIB, −0.9 dB, −0.5 dB, and −0.34 dB) to the MTD. This paper investigated the relationship between ultrasonic backscatter and cancellous bone microstructure deterioration and indicated that the ultrasonic backscatter could be affected by cancellous bone microstructure deterioration direction.

scholarly journals Ultrasonic Backscatter Technique for Assessing and Monitoring Neonatal Cancellous Bone Status in Vivo

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 157417-157426 ◽  
Author(s):  
Weiying Mao ◽  
Yang Du ◽  
Chengcheng Liu ◽  
Boyi Li ◽  
Dean Ta ◽  
...  
Keyword(s):  
Cancellous Bone ◽  
Bone Status ◽  
Ultrasonic Backscatter

scholarly journals Effect of the cortex on ultrasonic backscatter measurements of cancellous bone

2011 ◽  
Vol 56 (19) ◽  
pp. 6243-6255 ◽  
Author(s):  
Brent K Hoffmeister ◽  
Andrew P Holt ◽  
Sue C Kaste
Keyword(s):  
Cancellous Bone ◽  
Ultrasonic Backscatter

A method to locate spatial distribution of scattering centers from ultrasonic backscatter signal

2019 ◽  
Vol 145 (4) ◽  
pp. 2453-2460
Author(s):  
Fang Chen ◽  
Aijun He ◽  
Sidong Fu ◽  
Xiaozhou Liu ◽  
Yunqing Liu ◽  
...  
Keyword(s):  
Spatial Distribution ◽  
Backscatter Signal ◽  
Scattering Centers ◽  
Ultrasonic Backscatter

Ultrasonic backscatter characterization of cancellous bone using a general Nakagami statistical model

2019 ◽  
Vol 28 (2) ◽  
pp. 024302 ◽  
Author(s):  
Chengcheng Liu ◽  
Rui Dong ◽  
Boyi Li ◽  
Ying Li ◽  
Feng Xu ◽  
...  
Keyword(s):  
Statistical Model ◽  
Cancellous Bone ◽  
Ultrasonic Backscatter

Analysis of frequency dependence of ultrasonic backscatter coefficient in cancellous bone

2008 ◽  
Vol 124 (6) ◽  
pp. 4083-4090 ◽  
Author(s):  
Dean Ta ◽  
Weiqi Wang ◽  
Kai Huang ◽  
Yuanyuan Wang ◽  
Lawrence H. Le
Keyword(s):  
Frequency Dependence ◽  
Cancellous Bone ◽  
Backscatter Coefficient ◽  
Ultrasonic Backscatter
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