Normal Anatomy at 18-22 weeks slide show

Amniotic Fluid Index

• Cervix

• Doppler Techniques

Normal biometric calculations

Charts and Tables

Gestational sac size
• Crown rump length

Biparietal Diameter

Head Circumference

Head circumference 5th and 95th centiles

Abdominal Circumference

Femur (includes interactive charts)

• Fetal Weight

BPD, FL, tibia, fibula, humerus, radius

Humerus

Tibia

Fibula

Radius

Ulna

Foot

Clavicle (includes interactive charts)

Transverse cerebellar diameter (includes interactive charts)

Thoracic Circumference

• Renal Volume

Binocular distance

Interocular distance

Ocular Diameter

• Ear Length

• Nuchal Thickness

• Nuchal translucency

Fetal Length from femur length


FETAL CENTER.org
Normal Fetal Anatomy

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