Case Age (years) G P MRI findings at 31-33w MRI findings at 31-33w MRI findings at 31-33w Pregnancy outcomes Pregnancy outcomes Pregnancy outcomes Pregnancy outcomes Pregnancy outcomes Pregnancy outcomes
Placental position Cord insertion Vasa previa type and direction EGA at delivery (week) Indication for delivery Placenta pathology Neonatal weight(g) Apgar scores Apgar scores
1 32 4 1 anterior to posterior via right mangrove velamentous vessels TypeⅠ, posterior to anterior 34 6/7 maturation velamentous, mangrove vessels, TypeⅠvasa previa 3140 8 9
2 29 2 0 anterior low-lying tiny velamentous TypeⅠ, anterior to posterior 34 0/7 bleeding tiny velamentous, TypeⅠvasa previa 2650 7 9
3 36 3 1 anterior to posterior via right tiny velamentous TypeⅠ, anterior to right-posterior 35 0/7 maturation tiny velamentous, TypeⅠvasa previa 3050 8 9
4 36 2 0 anterior low-lying parachute velamentous vessels TypeⅠ, mid-anterior to right-posterior 39 0/7 term velamentous, parachute vessels, TypeⅠvasa previa 3800 9 10
5 34 3 0 posterior low-lying mangrove velamentous vessels TypeⅠ, right-anterior to left-posterior bent by fetal head 36 2/7 late preterm velamentous, mangrove vessels, TypeⅠvasa previa 2750 8 9
6 30 1 0 posterior mangrove velamentous vessels TypeⅠ, right-anterior to right-posterior bent by fetal head 35 5/7 maturation velamentous, mangrove vessels, TypeⅠvasa previa 2520 7 9
7 38 4 1 bilobes posterior low-lying normal cord, bridge vessels linking lobes Type Ⅱ, right to posterior 36 5/7 late preterm bilobed, Type Ⅱ vasa previa 2600 8 9
8 31 3 0 left low-lying normal Type Ⅲ boomerang, diverged, left to anterior & posterior 34 6/7 maturation Type Ⅲ boomerang vasa previa 2600 8 9
9
32
3
0
MCDA anterior to posterior
normal
Type Ⅲ boomerang, left-anterior to mid-posterior
34 3/7
MCDA and one distress
Type Ⅲ boomerang vasa previa
2100/ 2150
7/7
8/ 8
10 36 4 1 anterior to posterior normal Type Ⅲ boomerang, bilateral posterior to anterior 34 2/7 maturation Type Ⅲ boomerang vasa previa 2750 8 9
11 30 1 0 anterior to right normal Type Ⅲ boomerang, ritht-anterior to right-posterior 34 0/7 maturation Type Ⅲ boomerang vasa previa 2500 7 9
12 35 3 1 major and succenturiate lobes normal cord, bridge vessels linking lobes no sign, mangrove vessels over 6cm away from cervix 38 0/7 term bilobed, mangrove bridge vessels away from amnion split 3700 9 10