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Fig. 2 | BMC Pregnancy and Childbirth

Fig. 2

From: Three-dimensional power Doppler ultrasound evaluation of placental blood flow in normal monochorionic diamniotic twin pregnancies

Fig. 2

Acquisition of placental volumes with three-dimensional power Doppler in twin pregnancy. The volume data was acquired close to the umbilical cord implantation site of a normal monochorionic diamniotic twin pregnancy (fetus a and fetus b) at gestational week 32+ 6. The sphere volume (yellow sphere frame) varied according to placental thickness. Placental indices of fetus a: volume 5.14 cm3; VI 38.026; FI 35.35; VFI 13.442. Placental indices of fetus b: volume 7.93 cm3; VI 29.92; FI 36.024; VFI 10.779. FI, Flow index; VFI, Vascularizationflow index; VI, Vascularization index

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