
Reference Manual 34
Fetal Growth Table
N.Shinozuka. “Fetal biometry standard values” http://www.shinozuka.com, 1996
Age
(wd)
Growth
(cm)
Min
(cm)
Max
(cm)
Age
(wd)
Growth
(cm)
Min
(cm)
Max
(cm)
07w0d 0.79 0.51 1.07 10w1d 2.93 2.09 3.76
07w1d 0.86 0.55 1.17 10w2d 3.05 2.19 3.91
07w2d 0.93 0.60 1.27 10w3d 3.18 2.29 4.06
07w3d 1.01 0.65 1.37 10w4d 3.31 2.40 4.22
07w4d 1.09 0.71 1.47 10w5d 3.44 2.51 4.38
07w5d 1.17 0.76 1.58 10w6d 3.58 2.62 4.54
07w6d 1.25 0.82 1.69 11w0d 3.71 2.73 4.70
08w0d 1.34 0.88 1.80 11w1d 3.85 2.84 4.86
08w1d 1.43 0.95 1.91 11w2d 4.00 2.96 5.03
08w2d 1.52 1.01 2.03 11w3d 4.14 3.08 5.20
08w3d 1.61 1.08 2.15 11w4d 4.29 3.20 5.37
08w4d 1.71 1.15 2.27 11w5d 4.44 3.33 5.55
08w5d 1.81 1.22 2.39 11w6d 4.59 3.45 5.73
08w6d 1.91 1.30 2.52 12w0d 4.74 3.58 5.91
09w0d 2.01 1.38 2.65 12w1d 4.90 3.72 6.09
09w1d 2.12 1.46 2.78 12w2d 5.06 3.85 6.27
09w2d 2.23 1.54 2.91 12w3d 5.22 3.99 6.46
09w3d 2.34 1.63 3.05 12w4d 5.39 4.13 6.65
09w4d 2.45 1.72 3.18 12w5d 5.55 4.27 6.84
Age
(wd)
Growth
(cm)
Min
(cm)
Max
(cm)
Age
(wd)
Growth
(cm)
Min
(cm)
Max
(cm)
09w5d 2.57 1.81 3.32 12w6d 5.72 4.41 7.03
09w6d 2.68 1.90 3.47 13w0d 5.89 4.56 7.23
10w0d 2.80 1.99 3.61
Crown-Rump Length (CRL) : NELSON
GA Table
Nelson, L. “Comparison of Methods for Determining Crown-Rump Measurement by Real-
Time Ultrasound.” Journal of Clinical Ultrasound, 9:67-70, February, 1981.
GAdays = 51.0008 + 0.6 × CRLmm
Output Unit : d (days)
Input Unit : mm
Min Range : 0.15 cm
Max Range : 11.5 cm
Crown-Rump Length (CRL) : HADLOCK
GA Table
Frank P. Hadlock, Yogesh P. Shah, Donna J. Kanon, Joshua V. Lindsey,. “Fetal Crown-Rump
Length: Reevaluation of Relation to Menstrual Age (5-18 weeks) with High-Resolution Real-
Time US” Radiology, 1992; 182:501-505
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