Popis: |
Uterine contractility of the non-pregnant uterus is likely to play an important role in human reproduction, in particular, in the embryo implantation process. After ovulation, contractility is characterized by a relative quiescence in response to the level of progesterone produced. The development of high-resolution ultrasound probes has enabled the visualization of the myometrial activity in a non-invasive way. It can also provide additional characteristics such as amplitude and direction. The nearly quiescent contractility reached at hCG+ 7 days may favour embryo permanence in the endometrial cavity, and therefore, assist implantation. Studying and understanding contractility of the non-pregnant uterus can improve embryo transfers and implantation rates. |