Abstract
Objectives: To evaluate the placental vessels angio-architecture by preoperative ultrasonography with the view of placental surface rendering. Methods: Six cases affected with TTTS were examined by power Doppler with 3D surface rendering (Accuvix XQ, Medison, Seoul Korea) preoperatively, and compared the images to fetoscopic placental surface view. Gestational ages at examination were average of 20 weeks’ gestation (18 to 23). Three cases were anterior placenta, and the other three were posterior placenta. Results: One case of anterior placenta obtained a sufficient image of vasculature running through the placental surface compared to fetoscopical view. All three posterior placentae were not able to get adequate images because of its technical limitation; motion noise of amniotic fluid or fetus, far distance of placenta location, and far distance between both umbilical cord insertion. Conclusions: 3D power Doppler surface rendering, which still has technical limitations, may have the potential of preoperative ultrasound guide to simulate the angio-architecture of communicating vessels especially for anterior placenta cases, if the sufficient view is obtained.
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