الفهرس 
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Abstract
Endometrial receptivity means the time in which the endometrium
allow implantation. Embryo implantation is determined by multiple
interactive events and depends on embryo quality and endometrial
receptivity. During the last decades, several developments in controlled
ovarian hyperstimulation (COH), fertilization and embryo culture techniques
have led to improvement in the number and quality of embryo available for
ET. In contrast endometrial receptivity has failed to benefit from parallel
optimization, and its disorders are likely to represent an important cause of
the sub-optimal embryo implantation rates observed in IVF- ET.
An accurate method of assessing endometrial receptivity has not been
identified. The standard method of endometrial dating, histologic analysis
of an endometrial biopsy specimen can’t be used in treatment cycles. In an
attempt to identify a non- invasive method for predicting endometrial
receptivity during IVF & ICSI procedures, sonographic imaging of
endometrial appearance (pattern and thickness) as well as vascularization by
color and pulse Doppler were studied.
The aim of this work is ultrasonographic evaluation of endometrial
thickness and pattern as well as Doppler study of uterine artery blood flow to
assess the implantation potential in women undergoing IVF and/ or ICSI
program.