Table 2. Comparison by pregnancy outcome.
| All SGA (n = 20) | All AGA (n = 123) | P value | Normotensive, term SGA (n = 13) | Normotensive, term AGA (n = 113) | P value | PET (n = 9) | No PET (n = 134) | P value | |
|---|---|---|---|---|---|---|---|---|---|
| Gestation at scan (days)* | 93 (83–97) | 91 (82–97) | 0.4 | 94 (83–97) | 92 (82–97) | 0.2 | 89 (83–96) | 92 (82–97) | 0.5 |
| CRL (mm)* | 70 (53–83) | 70 (51–84) | 0.4 | 76 (57–83) | 70 (51–84) | 0.2 | 64 (53–81) | 70 (51–84) | 0.4 |
| Placental Volume (mm3)* | 49.1 (14.9–95.0) | 60.6 (13.4–130.6) | 0.02 | 53.1 (26.3–95.0) | 61.7 (13.4–130.6) | 0.2 | 38.7 (14.9–74.1) | 60.0 (13.4–130.6) | <0.01 |
| sPlaV* | 0.24 (0.08–0.38) | 0.30 (0.08–0.60) | <0.01 | 0.26 (0.15–0.38) | 0.30 (0.08–0.60) | 0.04 | 0.20 (0.08–0.30) | 0.30 (0.08–0.60) | <0.01 |
| FMBV UPI* | 0.15 (0.03–0.57) | 0.24 (0.01–0.65) | 0.01 | 0.17 (0.06–0.57) | 0.24 (0.01–0.65) | 0.3 | 0.12 (0.03–0.35) | 0.23 (0.01–0.65) | 0.03 |
| FMBV IVS* | 0.03 (<0.01–0.39) | 0.10 (<0.01–0.44) | 0.01 | 0.09 (0.02–0.39) | 0.1 (<0.01–0.44) | 0.4 | 0.02 (<0.01–0.29) | 0.1 (<0.01–0.44) | 0.01 |
* Median (range)
SGA = small for gestational age; AGA appropriate for gestational age; PET = pre-eclampsia; No PET = no pre-eclampsia; CRL = crown rump length; sPlaV = standardised placental volume ((PlaV)1/3/CRL); FMBV UPI = Fractional moving blood volume at the utero-placental interface (UPI); FMBV IVS = Fractional moving blood volume for the volume containing the intervillous space (IVS), 5mm into the placenta from the UPI.