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Antenatal visualization of vascular anastomoses in monochorionic twins using color Doppler sonography: the protective function of these anastomoses and the phenomenon of interference beating
Author(s) -
Joern H.,
Klein B.,
SchmidSchoenbein H.,
Rath W.
Publication year - 1999
Publication title -
ultrasound in obstetrics and gynecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.202
H-Index - 141
eISSN - 1469-0705
pISSN - 0960-7692
DOI - 10.1046/j.1469-0705.1999.14060422.x
Subject(s) - medicine , anastomosis , color doppler , laser doppler velocimetry , blood flow , doppler sonography , doppler effect , velocimetry , surgery , radiology , optics , ultrasonography , physics , astronomy
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 super‐imposed 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. Copyright © 1999 International Society of Ultrasound in Obstetrics and Gynecology