Normal fetal cardiac measurements derived by cross‐sectional echocardiography

Normal fetuses, gestational ages from 16 weeks to term. Sample sizes for specific measurements: left and right ventricular width (n=337), aortic root diameter (n=296), pulmonary artery diameter (n=312), mitral valve orifice (n=159), tricuspid valve orifice (n=161), lengths of left and right ventricles (n=100).

Cross-sectional echocardiography (real-time ultrasound)

Normal ranges of fetal cardiac structures (ventricular widths and lengths, aortic root diameter, pulmonary artery diameter, mitral and tricuspid valve orifices)surrogate