Abstract
Due to the development of many quality control systems in the industry, increasing demands for limited health care resources and rise of legal aspects in ultrasound practice, the need for quality has also emerged in the prenatal ultrasound field. Based on the literature, various approaches for quality control based on fetal detection rates, analysis of nuchal translucency measurements or biometric measurements are reviewed. Particular emphasis is put on the use of fetal biometry to develop quality control systems based on both a qualitative or a quantitative approach.