Danon Eran, Weisz Boaz, Achiron Reuven, Pretorius Dolores H, Weissmann-Brenner Alina, Gindes Liat
Department of Obstetrics and Gynecology, Chaim Sheba Medical Center (Affiliated to the Sackler School of Medicine, Tel-Aviv University), Ramat Gan, Israel.
Department of Radiology, University of California, San Diego, Thornton Hospital, San Diego, CA, USA.
Prenat Diagn. 2016 May;36(5):407-17. doi: 10.1002/pd.4791. Epub 2016 Mar 17.
The objective of this study is to evaluate the fetal cerebral vasculature by three-dimensional (3D) ultrasonography and Doppler technologies in normal fetuses and to describe a systematic method for analysis of volume data sets.
3D volumes of the fetal brain were acquired prospectively in 25 patients between 12.3 and 36.3 weeks' gestation. Volumes were acquired with high-definition Doppler flow. The feasibility of identifying the fetal cerebral blood vessels and venous sinuses was analyzed.
A step-by-step systematic approach to identify the cerebral vasculature from ultrasonographic volume data sets was developed. The volumes were rotated into a standard anatomic orientation in the multiplanar display, and then, by systematic navigation, the vessels were demonstrated. Arteries of the circle of Willis, basilar artery, pericallosal artery, and internal carotid arteries were demonstrated in more than half of the fetuses. Tiny vessels such as those that supply the cerebellum and those that branch from the pericallosal artery were demonstrated in less than 50% of the volumes.
The essential fetal cerebral vessels can be visualized by 3D volume analysis. Systematic analysis enables identification of the fetal brain arteries, veins, and sinuses and provides knowledge about anatomical variations and the diversity of human anatomy. © 2016 John Wiley & Sons, Ltd.
本研究的目的是通过三维（3D）超声检查和多普勒技术评估正常胎儿的脑循环系统，并描述一种分析容积数据集的系统方法。
前瞻性采集25例妊娠12.3至36.3周胎儿的脑部3D容积数据。采用高分辨率多普勒血流采集容积数据。分析识别胎儿脑血管和静脉窦的可行性。
开发了一种从超声容积数据集中识别脑循环系统的逐步系统方法。在多平面显示器中将容积数据旋转至标准解剖方位，然后通过系统导航显示血管。超过半数胎儿显示出 Willis 环动脉、基底动脉、胼周动脉和颈内动脉。在不到50%的容积数据中显示出诸如供应小脑的小血管以及从胼周动脉分支的小血管。
通过3D容积分析可以显示胎儿重要的脑血管。系统分析能够识别胎儿脑动脉、静脉和静脉窦，并提供有关解剖变异和人体解剖多样性的知识。© 2016 John Wiley & Sons, Ltd.
