title: Cervical attenuation as a measure of preterm delivery: impact of different region of interest sizes.
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.
authors.forename: Viksit
authors.initials: V
authors.lastname: Kumar
authors.forename: Timothy
authors.initials: T
authors.lastname: Bigelow
authors.forename: Barbara
authors.initials: B
authors.lastname: McFarlin
mesh_terms: D000465:Algorithms; D002584:Cervix Uteri / Q000000981:diagnostic imaging*; D005260:Female; D005865:Gestational Age; D006801:Humans; D011247:Pregnancy; D047928:Premature Birth; D014463:Ultrasonography