期刊
PLACENTA
卷 34, 期 11, 页码 1113-1115出版社
W B SAUNDERS CO LTD
DOI: 10.1016/j.placenta.2013.08.002
关键词
Contrast enhanced ultrasound; Pregnancy termination; Placenta previa; Uteroplacental perfusion; Human
Contrast enhanced ultrasound (CEUS) was used to quantify the dynamic changes in uteroplacental blood flow before and after the interruption of fetal villus circulation resulting from feticide during a second trimester pregnancy termination in a patient with complete placenta previa. Quantitative analysis was performed on time-intensity curves acquired 24 h before and 48 h and 120 h after feticide and demonstrated the persistence of utero-placental blood flow with a progressive and two-step reduction in intervillous space and uteroplacental blood flow. Our results suggest that placental blood flow reduction after interruption of fetal circulation is a progressive and delayed mechanism. (C) 2013 Elsevier Ltd. All rights reserved.
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