What Does Nuchal Scan Mean / Comparative Studies Of Two Dimensional And Three Dimensional Ultrasonic Nuchal Translucency In Trisomy Assessments / The sonographer first confirms your baby's gestational age by measuring him from crown to rump to see whether he's about the size he should be for his age. What Does Nuchal Scan Mean / Comparative Studies Of Two Dimensional And Three Dimensional Ultrasonic Nuchal Translucency In Trisomy Ass... Visit Site