Quantitative grading of a human blastocyst: optimal inner cell mass size and shape.

OBJECTIVE To investigate the predictive value of quantitative measurements of blastocyst morphology on subsequent implantation rates after transfer. DESIGN Prospective observational study. SETTING Private assisted reproductive technology center. PATIENT(S) One hundred seventy-four IVF patients receiving transfers of expanded blastocyst-stage embryos… CONTINUE READING