Intraoperator and interoperator repeatability of manual and semi-automated measurement of increased fetal nuchal translucency according to the operator's experience
1. Department of Obstetrics and Gynaecology, University of Tuebingen, Germany;2. GE Medical Systems Kretztechnik GmbH & Co OHG, Zipf, Austria;3. School of Computing and Mathematics, University of Plymouth, Plymouth, UK