Total N = 101

CRL (45 - 64 mm) N = 68

CRL (65 - 82 mm) N = 33

p value

Skull/neck

101 (100%)

68 (100%)

33 (100%)

Not applicable

Brain

101 (100%)

68 (100%)

33 (100%)

Not applicable

Orbit

91 (90.1%)

63 (92.6%)

28 (84.8%)

0.218

Lens

74 (73.3%)

50 (73.5%)

24 (72.7%)

0.932

Facial profile

96 (95.0%)

67 (98.5%)

29 (87.9%)

0.021*

Spine

99 (98.0%)

67 (98.5%)

32 (97.0%)

0.598

Four chambers view/chest

98 (97.0%)

66 (97.1%)

32 (97.0%)

0.980

Three-vessel view

49 (48.5%)

32 (47.1%)

17 (51.5%)

0.674

Left ventricular outflow tract

52 (51.5%)

32 (47.1%)

20 (60.6%)

0.201

Stomach

101 (100%)

68 (100%)

33 (100%)

Not applicable

Abdominal wall

101 (100%)

68 (100%)

33 (100%)

Not applicable

Umbilical artery

94 (93.1%)

63 (92.6%)

31 (93.9%)

0.810

Kidneys

48 (47.5%)

29 (42.6%)

19 (57.6%)

0.159

Urinary bladder

100 (99.0%)

67 (98.5%)

33 (100%)

0.484

Extremities

100 (99.0%)

68 (100%)

32 (97.0%)

0.149

Anatomy check

98 (97.0%)

66 (97.1%)

32 (97.0%)

0.500