Ultrasound parameters in the prediction of pregnancy during IVF treatment

Abstract

Ultrasound examination of the endometrium is the most commonly used noninvasive method to assess endometrial receptivity during IVF treatment. Endometrial thickness, pattern and volume are not predictive of pregnancy. A good blood supply towards the endometrium is usually considered to be an essential requirement for implantation and, therefore, assessment of endometrial blood flow within IVF treatment has drawn plenty of attention in recent years. Doppler study of uterine arteries does not reflect the actual blood flow to the endometrium. Endometrial and subendometrial blood flows can be more objectively and reliably measured with 3D power Doppler ultrasound. However, conflicting results are reported with regard to their role in the prediction of pregnancy within IVF treatment.