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Clinical and Experimental Obstetrics & Gynecology  2017, Vol. 44 Issue (6): 956-957    DOI: 10.12891/ceog3678.2017
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Severe tortuous intra-abdominal segment of isolated single umbilical artery by three-dimensional high-definition flow imaging
J.C. Han1, M. Hornick2, H.S. Ko3, X. Yang1, Y.H. He1, *()
1 Department of Ultrasound, Beijing Anzhen Hospital, Capital Medical University; Beijing Key Laboratory of Maternal-Fetus Medicine in Fetal Heart Disease, Beijing, People's Republic of China
2 Department of Surgery, Hospital of the University of Pennsylvania, Philadelphia, PA, USA
3 Department of Obstetrics and Gynecology, College of Medicine, Catholic University, Seoul, Korea
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Abstract  
The authors report a tortuous intra-abdominal segment of isolated single umbilical artery (SUA) that proved to be an omega-shaped variant by three-dimensional high-definition-flow (3D-HD-flow) imaging. A 28-year-old woman was referred to the present center for detailed fetal echocardiography examination after finding SUA during routine two-dimensional ultrasound examination at 24+3 weeks’ gestation. 3D-HD-flow demonstrated a severely tortuous and dilated intra-abdominal segment of SUA mimicking omega-shaped variant. Postnatal abdominal ultrasound and cardiac examination were unremarkable. This case suggests that the omega-shaped variant of SUA is probably a normal variant when unassociated with other structural anomalies. When a locally dilated umbilical artery is detected during routine 2D ultrasound, the authors recommend using 3D color Doppler imaging to more precisely determine the course of the umbilical artery.
Key words:  Fetus      Ultrasound      Single umbilical artery      Three-dimensional imaging      High-definition flow     
Published:  10 December 2017     
*Corresponding Author(s):  Y.H. HE     E-mail:  heyihuaecho@hotmail.com

Cite this article: 

J.C. Han, M. Hornick, H.S. Ko, X. Yang, Y.H. He. Severe tortuous intra-abdominal segment of isolated single umbilical artery by three-dimensional high-definition flow imaging. Clinical and Experimental Obstetrics & Gynecology, 2017, 44(6): 956-957.

URL: 

https://ceog.imrpress.com/EN/10.12891/ceog3678.2017     OR     https://ceog.imrpress.com/EN/Y2017/V44/I6/956

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