Title :
Cervical attenuation as a measure of preterm delivery: Impact of different region of interest sizes
Author :
Kumar, Vipin ; Bigelow, Timothy ; McFarlin, Barbara
Author_Institution :
Dept. of Mech. Eng., Iowa State Univ., Ames, IA, USA
Abstract :
One to five transvaginal ultrasound scans were taken of 63 women to estimate the microstructural changes in cervix using ultrasonic attenuation. Spectral log difference algorithm showed a clear decrease in attenuation as the time to delivery comes closer. The decrease in attenuation occurs earlier in preterm birth compared to full term birth which can be used as a predictor for preterm birth. Attenuation estimate did not improve as the ROI size increased.
Keywords :
bioacoustics; biomedical ultrasonics; obstetrics; ultrasonic absorption; ROI size; attenuation estimate; cervical attenuation; full term birth; microstructural changes; preterm birth; preterm delivery; region of interest sizes; spectral log difference algorithm; transvaginal ultrasound scans; ultrasonic attenuation; Acoustics; Attenuation; Educational institutions; Pediatrics; Phantoms; Pregnancy; Ultrasonic imaging;
Conference_Titel :
Engineering in Medicine and Biology Society (EMBC), 2014 36th Annual International Conference of the IEEE
Conference_Location :
Chicago, IL
DOI :
10.1109/EMBC.2014.6943572
