Effects of phase cancellation on broadband ultrasonic attenuation for in vitro human trabecular bone using a 2-D synthetic array

The average BV/TV, TB.Th and Tb.Sp for the trabecular bone are 0.154±0.052, 0.203±0.025 mm and 0.812±0.151 mm, respectively. After normalization with sample thickness, the average normalized BUA (nBUA) is 24.8±9.5 dB/MHz/cm and 19.2±5.5 dB/MHz/cm for PS and PI respectively. PS nBUA is significantly different than PI BUA (paired t-test, p