From: Clinical value of fetal facial profile markers during the first trimester
Normal | Abnormal | |||
---|---|---|---|---|
Trisomy 21 | Trisomy 18 | CLP | ||
IFA | 78.25° (74.75–82.98) | 74.11° (7.48) | 69.88° (7.08) | 82.03° (11.52) |
MNM angle | 4.07° (3.21–5.29) | 4.59° (1.71) | 6.98° (2.61) | 9.41° (2.57) |
FMA | 73.02° (5.01) | 74.33° (6.25) | 63.95° (4.77) | 74.42° (7.62) |
FS distance | 1.97 mm (1.53–2.37) | 2.26 mm (0.85) | 1.70 mm (1.81) | -0.22 mm (1.38) |
PL distance | 2.81 mm (0.53) | 2.89 mm (0.41) | 2.91 mm (0.56) | 2.71 mm (0.37) |
Cases | 1000 | 14 | 7 | 10 |