Joern H, Klein B, Schmid-Schoenbein H, Rath W
Department of Obstetrics and Gynecology, Medical Faculty of the Rhenish-Westphalian University of Technology, Aachen, Germany.
Ultrasound Obstet Gynecol. 1999 Dec;14(6):422-5. doi: 10.1046/j.1469-0705.1999.14060422.x.
This report concerns the antenatal visualization and velocimetry of an arterioarterial and a venovenous anastomosis in a monochorionic twin pregnancy using color Doppler sonography. The phenomenon of 'interference beating' occurs when two flow velocity waveforms are superimposed in one blood vessel. This characteristic image can be generated antenatally to confirm the existence of a vascular communication. We were able to reveal these anastomoses postnatally using the dye injection technique.
本报告涉及使用彩色多普勒超声对单绒毛膜双胎妊娠中的动脉-动脉和静脉-静脉吻合进行产前可视化及血流速度测定。当两个血流速度波形在一根血管中叠加时会出现“干扰搏动”现象。这种特征性图像可在产前生成以确认血管交通的存在。我们能够在产后使用染料注射技术揭示这些吻合情况。
