Fetal and Maternal Head Circumference During Pregnancy in Israeli Population

Fetal and Maternal Head Circumference During Pregnancy

In this study, measurements of fetal and maternal head circumference will be collected. This data will be presented in table or graph form. The effect of maternal head circumference on fetal head circumference will be evaluated and presented in either formula or graph form.

Inclusion Criteria:

• Singleton pregnancy
• Valid first trimester sonogram

Exclusion Criteria:

• Women under 18 years of age
• Women over 40 years of age
• Multi fetal pregnancy
• No accurate dating of pregnancy age
• Participant non compliance or cannot complete contact details
• Technical difficulty measuring fetal or maternal skull
• Abnormal fetal or maternal skull
• Familial hereditary disease, mental retardation
• Chronic maternal illness
• Maternal on chronic medication
• Abnormal screening test during current pregnancy
• Abnormal sugar metabolism or Hypertension during current pregnancy