
Reference Manual 17
Fetal Growth Table
Hansmann, Hackeloer, Stauch, Wittman “Ultrasound Diagnosis in Obsterics 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)
12 2.00 2.00 2.00 27 7.10 6.60 7.70
13 2.40 1.90 2.90 28 7.40 6.80 8.00
14 2.80 2.30 3.20 29 7.70 7.10 8.30
15 3.20 2.70 3.50 30 8.00 7.30 8.60
16 3.50 3.10 3.90 31 8.20 7.50 8.80
17 3.80 3.40 4.20 32 8.50 7.80 9.10
18 4.20 3.80 4.60 33 8.70 8.00 9.30
19 4.60 4.10 5.00 34 8.90 8.20 9.50
20 4.90 4.40 5.30 35 9.10 8.40 9.70
21 5.20 4.80 5.70 36 9.30 8.60 9.90
22 5.60 5.10 6.00 37 9.50 8.80 10.10
23 5.90 5.40 6.40 38 9.60 8.90 10.20
24 6.20 5.70 6.70 39 9.80 9.00 10.40
25 6.50 6.00 7.10 40 9.90 9.20 10.50
26 6.80 6.30 7.40 41 10.00 9.30 10.60
Biparietal Diameter (BPD) : 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 = 9.54 + 1.482 × BPD + 0.1676 × BPD
2
Output Unit : w (weeks)
Input Unit : cm
Min Range : 1.36 cm
Max Range : 10.18 cm
Standard Deviation :
Min Range (w) Max Range (w) ±2SD (w)
12 18 1.19
18 24 1.73
24 30 2.18
30 36 3.08
36 42 3.20
Fetal Growth 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.
Equation = 0.41 x MA – 0.000061 x MA
3
– 3.08
Output Unit : cm
Input Unit : w (weeks)
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