GE LOGIQ 500 Advanced Reference Manual page 341

CRL : Hadlock
Hadlock, Radiology
1992, Vol. 182:501
CRL Age SD CRL Age
<2 n/a ––– 42 11.1
2 5.7 0.3 43 11.2
3 5.9 0.3 44 11.2
4 6.1 0.3 45 11.3
5 6.2 0.3 46 11.4
6 6.4 0.3 47 11.5
7 6.6 0.3 48 11.6
8 6.7 0.3 49 11.7
9 6.9 0.3 50 11.7
10 7.1 0.3 51 11.8
11 7.2 0.3 52 11.9
12 7.4 0.3 53 12.0
13 7.5 0.3 54 12.0
14 7.7 0.3 55 12.1
15 7.9 0.4 56 12.2
16 8.0 0.4 57 12.3
17 8.1 0.4 58 12.3
18 8.3 0.4 59 12.4
19 8.4 0.4 60 12.5
20 8.6 0.4 61 12.6
21 8.7 0.4 62 12.6
22 8.9 0.4 63 12.7
23 9.0 0.4 64 12.8
24 9.1 0.4 65 12.8
25 9.2 0.4 66 12.9
26 9.4 0.4 67 13.0
27 9.5 0.4 68 13.1
28 9.6 0.4 69 13.1
29 9.7 0.4 70 13.2
30 9.9 0.4 71 13.3
31 10.0 0.4 72 13.4
32 10.1 0.5 73 13.4
33 10.2 0.5 74 13.5
34 10.3 0.5 75 13.6
35 10.4 0.5 76 13.7
36 10.5 0.5 77 13.8
37 10.6 0.5 78 13.8
38 10.7 0.5 79 13.9
39 10.8 0.5 80 14.0
40 10.9 0.5 81 14.1
41 11.0 0.5 82 14.2
Table 7–9. CRL : Hadlock
LOGIQ 500 Advanced Reference Manual
2276614–100 Rev. 0
Unit : CRL (mm)
Age (Week)
SD (Week)
SD CRL Age SD
0.5 83 14.2 0.6
0.5 84 14.3 0.6
0.5 85 14.4 0.6
0.5 86 14.5 0.6
0.5 87 14.6 0.6
0.5 88 14.7 0.7
0.5 89 14.8 0.7
0.5 90 14.9 0.7
0.5 91 15.0 0.7
0.5 92 15.1 0.7
0.5 93 15.2 0.7
0.5 94 15.3 0.7
0.5 95 15.3 0.7
0.5 96 15.4 0.7
0.5 97 15.5 0.7
0.5 98 15.6 0.7
0.5 99 15.7 0.7
0.6 100 15.9 0.7
0.6 101 16.0 0.7
0.6 102 16.1 0.7
0.6 103 16.2 0.7
0.6 104 16.3 0.7
0.6 105 16.4 0.7
0.6 106 16.5 0.7
0.6 107 16.6 0.7
0.6 108 16.7 0.7
0.6 109 16.8 0.7
0.6 110 16.9 0.8
0.6 111 17.0 0.8
0.6 112 17.1 0.8
0.6 113 17.2 0.8
0.6 114 17.3 0.8
0.6 115 17.4 0.8
0.6 116 17.5 0.8
0.6 117 17.6 0.8
0.6 118 17.7 0.8
0.6 119 17.8 0.8
0.6 120 17.9 0.8
0.6 121 18.0 0.8
0.6 >121 n/a –––
0.6
FL : Hadlock
Hadlock, Radiology
1984, Vol 152:497
FL Age 2SD FL
<6 n/a ––– 46
6 11.9 1.4 47
7 12.2 1.4 48
8 12.4 1.4 49
9 12.7 1.4 50
10 13.0 1.4 51
11 13.3 1.4 52
12 13.5 1.4 53
13 13.8 1.4 54
14 14.1 1.4 55
15 14.4 1.4 56
16 14.7 1.4 57
17 15.0 1.4 58
18 15.3 1.4 59
19 15.6 1.4 60
20 16.0 1.4 61
21 16.3 1.4 62
22 16.6 1.4 63
23 16.9 1.4 64
24 17.2 1.4 65
25 17.6 1.4 66
26 17.9 1.4 67
27 18.2 1.8 68
28 18.6 1.8 69
29 18.9 1.8 70
30 19.3 1.8 71
31 19.6 1.8 72
32 20.0 1.8 73
33 20.3 1.8 74
34 20.7 1.8 75
35 21.0 1.8 76
36 21.4 1.8 77
37 21.8 1.8 78
38 22.2 1.8 79
39 22.5 1.8 80
40 22.9 1.8 81
41 23.3 1.8 82
42 23.7 1.8 83
43 24.1 2.1 >83
44 24.5 2.1
45 24.9 2.1
Table 7–10. FL : Hadlock
OB Tables
Unit : FL (mm)
Age (Week)
2SD (Week)
Age 2SD
25.3 2.1
25.7 2.1
26.1 2.1
26.5 2.1
26.9 2.1
27.3 2.1
27.7 2.1
28.2 2.1
28.6 2.1
29.0 2.1
29.5 2.1
29.9 2.1
30.3 3.0
30.8 3.0
31.2 3.0
31.7 3.0
32.1 3.0
32.6 3.0
33.1 3.0
33.5 3.0
34.0 3.0
34.5 3.0
34.9 3.0
35.4 3.0
35.9 3.0
36.4 3.1
36.9 3.1
37.4 3.1
37.9 3.1
38.4 3.1
38.9 3.1
39.4 3.1
39.9 3.1
40.4 3.1
40.9 3.1
41.4 3.1
42.0 3.1
42.5 3.1
n/a –––
7–7