Gestational sac (GS): |
GA (day) = 6.687 + 1.395(GS) - 0.4391(GS)2 + 0.09837(GS)3 - 0.007091(GS)4 |
R2 = 0.9683 |
Crown-rump length (CRL): |
GA (day) = 7.622 + 0.5264(CRL) + 0.009440(CRL)2 - 0.0005539(CRL)3 |
R2 = 0.9693 |
Biparietal diameter (BPD): |
GA (day) = 8.195 + 0.8689(BPD) + 0.08056(BPD)2 |
R2 = 0.9648 |
Abdominal circumference (AC): |
GA (day) = 7.645 + 0.8774(AC) - 0.07917(AC)2 + 0.004024(AC)3 - 6.508e-5(AC)4 |
R2 = 0.9698 |
Femur length (FL): |
GA (day) = 12.24 + 3.822(FL) - 0.5103(FL)2 |
R2 = 0.8287 |
Lens diameter (LD): |
GA (day) = 11.96 - 84.88(LD) + 1470(LD)2 - 4625(LD)3 |
R2 = 0.7582 |