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Charts and Tables

Gestational Sac Size	Gestational Sac Size, HCG & MA
Crown-rump Length	Biparietal Diameter
Head Circumference	Head Circumference (%)
Abdominal Circumference	Abdominal Circumference (%)
Femur Length	Teratogenic Cardiac Malformations
Association of Cardiac Disease with Anomalies	Fetal Long Bone Measurement
Amniotic Fluid Index	Cardiac Outflow Tract Abnl.
Thoracic Circumference	4 Chamber View and Malformations
AIUM Guidelines	Risk of Trisomy 18 with Choroid Plexus Cyst
Maternal Age Specific Odds of Fetal Down's Syndrome based on Non-structural Findings	Maternal Age-Specific Risk of Trisomy 18 with Choroid Plexus Cyst
Likelihood Ratios and Risk of Trisomy 21 based on Humeral Length (Bahado-Singh)	Ultrasound Criteria and Likelihood Ratios assigned for Detection of Trisomy 21 (Nyberg)
	Likelihood Ratios and Risk of Trisomy 21 based on Nuchal Thickness (Bahado-Singh)

Ultrasound Educational Press Go Top

Peter W. Callen, M.D.
Professor of Radiology, Obstetrics, Gynecology and Reproductive Science
University of California Medical Center, San Francisco, California

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