Journal of Capital Medical University ›› 2014, Vol. 35 ›› Issue (2): 179-183.doi: 10.3969/j.issn.1006-7795.2014.02.008

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Value of abnormal ductus venosus flow frequency spectrum in early detection of abnormalities at 11-14 weeks gestation

Liu Dongmei, Yang Min, Liu Yong   

  1. Department of Ultrasound, Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, China
  • Received:2013-12-18 Online:2014-04-21 Published:2014-04-16
  • Contact: 杨敏 E-mail:yangminivf60@163.com

Abstract:

Objective To explore the value of abnormal ductus venosus flow frequency spectrum in early detection of abnormalities at 11-14weeks gestation. Methods Totally 1 091 pregnant women at 11-14 weeks gestation were screened by the color Doppler ultrasound. The nuchal translucency were measured and the ductus venosus flow were evaluated. The following variables were measured: S-peak, D-peak, A-wave. Results The abnormal DV and NT were detected in 19/1 091(1.7%) and 26/1 091(2.3%), respectively. The occurrence rate of reversed flow during atrial contraction(RA) is 3.29%(36/1 091). The sensitivity, specificity, and positive and negative predictive values of abnormal DV flow and NT for determining increased test risk were 70.5%, 99.3%, 63.1%, 99.5% and 64.7%, 98.7%, 44%, 99.4%. The sensitivity of abnormal DV flow or NT for determining increased test risk was 82.3%. Conclusion Abnormal DV flow can provide an important information in the first trimester. When abnormal DV and NT were both positive, the risk of fetus abnormality increased.

Key words: ductus venosus, nuchal translucency, color Doppler ultrasound

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