Figure 1:
A 2D illustration (sagittal) of the Placental Location within Uterus (PLU). The blue circle and light blue dot represent the uterus and its center of mass (CM), the red object and light red dot represent the placenta and its CM. The two dashed reference lines represent the vertical line going through the CM of uterus and the line going through both CM of uterus and CM of placenta. Green angle (in absolute value) is the proposed marker (PLU).