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.
Financial & competing interests disclosure
The authors have no relevant affiliations or financial involvement with any organization or entity with a financial interest in or financial conflict with the subject matter or materials discussed in the manuscript. This includes employment, consultancies, honoraria, stock ownership or options, expert testimony, grants or patents received or pending, or royalties.
No writing assistance was utilized in the production of this manuscript.