Title :
The Effects of Desiccation on Skull Bone Sound Speed in Porcine Models
Author :
White, P. Jason ; Palchaudhuri, Sonali ; Hynynen, Kullervo ; Clement, Greg T.
Author_Institution :
Harvard Medical Sch., Boston
fDate :
8/1/2007 12:00:00 AM
Abstract :
Pre- and postdesiccation sound speeds through ex vivo porcine skull specimens were determined by time-of-flight measurements with propagated broadband pulses centered at 0.97 MHz (Phis12.7 mm, -6-dB bandwidth = 58%). The measured longitudinal sound speed in the 13 porcine samples (predesiccation average sound speed = 1727 plusmn 57 ms-1) changed by a statistically significant +2.3% after deionized water reconstitution (paired t-test, alpha = 0.05, p = 0.0332).
Keywords :
acoustic wave transmission; acoustic wave velocity; bioacoustics; bone; time of flight spectra; deionized water reconstitution; desiccation effects; ex vivo porcine skull specimens; frequency 1 MHz; longitudinal sound speed; paired t-test; porcine models; postdesiccation sound speed; predesiccation average sound speed; propagated broadband pulses; skull bone sound speed; time-of-flight measurements; Acoustic measurements; Acoustic propagation; Bones; Skull; Sonar equipment; Temperature measurement; Ultrasonic imaging; Ultrasonic transducers; Ultrasonic variables measurement; Velocity measurement; Acoustics; Animals; Biomechanics; Desiccation; Skull; Swine;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
DOI :
10.1109/TUFFC.2007.443
