Information About Radiology
Category Obstetric Measurement Term Crown Rump Length CRL Definition of Crown Rump Length CRL Fetal Length From Crown to Rump Used to Estimate Gestational Age in the First Trimester Notes About Crown Rump Length CRL Measured in the Mid-Sagittal Plane
Category Obstetric Measurement Term Biparietal Diameter BPD Definition of Biparietal Diameter BPD Transverse Diameter of the Fetal Head at the Level of the Thalami Used for Gestational Dating Notes About Biparietal Diameter BPD Standardized Plane Required
Category Obstetric Measurement Term Nuchal Fold Definition of Nuchal Fold Posterior Neck Thickness Measurement In Second Trimester Screening Notes About Nuchal Fold Different From First Trimester Nuchal Translucency