
Reference Manual 70
Fetal Growth Table
Hansmann, Hackeloer, Staudach, Wittman “Ultrasound Diagnosis in Obstetrics and
Gynecology” Springer- Verlag, New York, 1986, p.176.
Age (W)
Growth
(cm)
Min (cm) Max (cm) Age (W)
Growth
(cm)
Min (cm) Max (cm)
14 10.60 10.60 10.60 28 27.40 25.40 29.00
15 11.50 10.30 12.90 29 28.40 26.30 30.10
16 12.70 11.40 14.10 30 29.30 27.30 31.00
17 14.00 12.50 15.30 31 30.30 28.20 32.00
18 15.20 13.80 16.60 32 31.10 29.00 32.80
19 16.40 14.90 18.00 33 31.80 29.70 33.50
20 17.60 16.10 19.30 34 32.50 30.30 34.30
21 19.00 17.30 20.60 35 33.20 31.00 34.90
22 20.30 18.50 21.90 36 33.70 31.50 35.50
23 21.50 19.80 23.20 37 34.00 32.10 36.00
24 22.60 21.00 24.40 38 34.40 32.50 36.40
25 24.00 22.30 25.70 39 34.70 32.90 36.90
26 25.10 23.40 26.80 40 34.90 33.30 37.20
27 26.30 24.40 28.00
Head Circumference (HC) : HADLOCK
GA Table
Hadlock, F., Deter, R.L., Harrist, R.B., Park, S.K. “Estimating Fetal Age: Computer-Assisted
Analysis of Multiple Fetal Growth Parameters” Radiology, 1984, 152: 497-501. (Biometric Age
and Growth Equations)
GA = 8.96 + 0.54 × HC + 0.0003 × HC
3
Output Unit : w (weeks)
Input Unit : cm
Min Range : 5.5 cm
Max Range : 35.7 cm
Standard Deviation:
Min Range (w) Max Range (w) ±2SD (w)
12 18 1.19
18 24 1.48
24 30 2.06
30 36 2.98
36 42 2.70
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