Pulsed Doppler ultrasound and color Doppler imaging are not only helpful in differentiate diagnosis with other placental tumor, but can also predict the perinatal outcome.

• 利用杜卜勒超音波血流侦测与彩色杜卜勒影像不仅可以帮助胎盘绒毛膜血管瘤与其他胎盘良性肿瘤的鑑别诊断，还可以评估怀孕的周产期预后。