Electrical and Computer Engineering, Mechanical Engineering, Center for Nondestructive Evaluation (CNDE)
Journal or Book Title
Ultrasound in Medicine & Biology
The purpose of this study was to determine whether cervical ultrasonic attenuation could identify women at risk of spontaneous preterm birth. During pregnancy, women (n = 67) underwent from one to five transvaginal ultrasonic examinations to estimate cervical ultrasonic attenuation and cervical length. Ultrasonic data were obtained with a Zonare ultrasound system with a 5- to 9-MHz endovaginal transducer and processed offline. Cervical ultrasonic attenuation was lower at 17–21 wk of gestation in the SPTB group (1.02 dB/cm-MHz) than in the full-term birth groups (1.34 dB/cm-MHz) (p = 0.04). Cervical length was shorter (3.16 cm) at 22–26 wk in the SPTB group than in the women delivering full term (3.68 cm) (p = 0.004); cervical attenuation was not significantly different at this time point. These findings suggest that low attenuation may be an additional early cervical marker to identify women at risk for SPTB.
Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-No Derivative Works 4.0 International License.
World Federation for Ultrasound in Medicine & Biology
McFarlin, Barbara L.; Kumar, Viksit; Bigelow, Timothy A.; Simpson, Douglas G.; White-Traut, Rosemary C.; Abramowicz, Jacques S.; and O'Brien, William D. Jr., "Beyond Cervical Length: A Pilot Study of Ultrasonic Attenuation for Early Detection of Preterm Birth Risk" (2015). Electrical and Computer Engineering Publications. 191.
Acoustics, Dynamics, and Controls Commons, Bioimaging and Biomedical Optics Commons, Biology and Biomimetic Materials Commons, Electrical and Computer Engineering Commons, Obstetrics and Gynecology Commons