Effects of phase cancellation on broadband ultrasonic attenuation for in vitro human trabecular bone using a 2-D synthetic array
作者： Jiqi Cheng , Frederick Serra-Hsu , Liangjun Lin , Wei Lin , Yi-Xian Qin
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摘要: The average BV/TV, TB.Th and Tb.Sp for the trabecular bone are 0.154±0.052, 0.203±0.025 mm 0.812±0.151 mm, respectively. After normalization with sample thickness, normalized BUA (nBUA) is 24.8±9.5 dB/MHz/cm 19.2±5.5 PS PI nBUA significantly different than (paired t-test, p<;0.0001). On average, 28.5% higher BUA, linear regression shows that can explain 81.2% of variability in nBUA. Both highly correlated BV/TV coefficients R=0.911 R=0.898 (p<;0.0001), also Young's modulus R=0.906 R=0.822 Results show phase cancellation does have a significant effect on BUA. However, both correlate well structural parameter, mechanical strength modulus.
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