Figure 2: Ultrasound findings using superb microvascular imaging of abnormal placental pathology
  1. Infarction: Neither the background ”scatter” and “villous tree” were detected, resulting in an echoic space (triangle).
  2. Avascular terminal villi: Only the background ”scatter” is observed without normal villous trees.
  3. Dilatation of stem villi (Congestion): The stem villi were clearly dilated compared with the surrounding villous stem vessels.
  4. Hyper-vascular terminal villi (Chorangiosis): Terminal villi are highly echoic compared with standard villi and appear to be ”fluffy” (triangle).