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First Trimester over view
- 10. PREGNANCY DATING 5mm CRL 2mm CRL Heartbeat TV - 18mm TA - 25mm TV - 8mm Embryo TV - 10mm TA - 20mm TV - 4mm Yolk Sac 5mm 2mm Gestational Sac Discriminatory Level - MSD Threshold Level MSD
Editor's Notes
- Morula (16 cells)
- TA view --- 5wks IUP
- TV view --- 5wks IUP
- TV view --- 6wks IUP with an embryo
- TV view --- fetal poles are seen 7wks