Software is important

erformance.

A risk calculation program that uses an algorithm based on scientific evidence. The software companies that use this algorithm are Astraia Software GmbH, ViewPoint GE Healthcare and Zeitgeist Health SE.

1.                                                                                                                                                                  Appropriate counseling of the parents.

Software is important for risk calculation: Software is  for first-trimester screening for chromosomal abnormalities by a) maternal age, b) fetal NT thickness and c) maternal serum free β-hCG and d) PAPP-A. Should they wish to use the additional markers for chromosomal abnormalities (nasal bone, tricuspid flow and ductus venosus flow) they may do so.