Beyond Cervical Length: A Pilot Study of Ultrasonic Attenuation for Early Detection of Preterm Birth Risk

详细信息    查看全文

• 作者：Barbara L. McFarlin^&lowast ; ; ^{bmcfar1@uic.edu" class="auth_mail" title="E-mail the corresponding author} ; Viksit Kumar^&dagger ; ; Timothy A. Bigelow^&dagger ; ; Douglas G. Simpson^&Dagger ; ; Rosemary C. White-Traut^&lowast ; ; Jacques S. Abramowicz^&sect ; ; William D. O'Brien Jr.^&Dagger ;
• 关键词：Ultrasonic attenuation ; Cervical remodeling ; Preterm birth ; Cervical length
• 刊名：Ultrasound in Medicine & Biology
• 出版年：2015
• 出版时间：November 2015
• 年：2015
• 卷：41
• 期：11
• 页码：3023-3029
• 全文大小：1042 K

文摘

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.