TABLE 1.
Prenatal ultrasound.
| Measurement gestational weeks | BPD (cm) | AC (cm) | FL (cm) | HC (cm) | DVP (cm) | AFI (cm) | Fetal growth |
|---|---|---|---|---|---|---|---|
| 23 weeks + 2 days | 5.04 (5.1–6.3) | 17.86 (16.4–20.4) | 3.78 (3.5–4.3) | 20.40 (19.1–22.6) | 3.0 (3–7) | 8.9 (8–25) | 22 weeks + 1 day |
| 27 weeks + 6 days | 6.60 (6.4–7.7) | 22.30 (21.0–25.6) | 5.10 (4.5–5.4) | 24.80 (23.9–27.6) | 3.9 (3–7) | 11.3 (8–25) | 26 weeks + 5 days |
| 31 weeks + 6 days | 7.70 (7.4–8.8) | 26.50 (24.6–29.9) | 5.90 (5.3–6.3) | 28.10 (24.6–29.9) | 5.4 (3–7) | – | 30 weeks + 4 days |
| 36 weeks + 3 days | 8.70 (8.3–9.6) | 31.60 (28.3–34.3) | 6.62 (6.1–7.1) | 31.24 (30.0–34.0) | 3.7 (3–7) | 9.4 (8–25) | – |
| 39 weeks + 2 days | 8.86 (8.6–10.0) | 30.88 (30.4–36.8) | 7.19 (6.6–7.6) | 31.46 (30.9–35.0) | 1.6 (3–7) | 4.6 (8–25) | – |
Note: Reference ranges are shown in parentheses (−2 SD/+ 2 SD) (Schwarz et al., 2014).
Abbreviations: AC, abdominal circumference; AFI, amniotic fluid index; BPD, biparietal diameter; DVP, deepest vertical pocket; FL, femur length; HC, head circumference.