Research Article

[Retracted] The Diagnostic Accuracy of Transabdominal and Transvaginal Color Doppler Ultrasound for Pregnant Women with Vasa Previa and Velamentous Cord Insertion

Figure 1

Color Doppler ultrasonography indicated the patients with VP + VCI (gestational week: 34+ 4 weeks; age: 31 years). Note: (a) TA-CDUS: the placenta was located on the posterior wall of the uterus near the internal os. (b) TV-CDUS: The umbilical vessel was fixed at the internal os with the adherence of the placenta to the posterior region. (c) The Doppler spectrum of the blood vessels above the internal os was consistent with the umbilical artery spectrum.
(a)
(b)
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