[Clinical analysis of ultrasound-guided embryo transfer after in-vitro fertilization].

OBJECTIVE: To investigate whether ultrasound (US) guided embryo transfer could improve pregnancy rates. METHODS: A prospective randomized trial was conducted to compare embryo transfer under abdominal US guidance (n = 178) with traditional embryo transfer (n = 152). RESULTS: The clinical pregnancy rate was 37.1% (66/178) in the US group compared with 25.0% (38/152) in the traditional group (P < 0.05). CONCLUSIONS: US guided embryo transfer after in vitro fertilization increased pregnancy and implantation rates. It is suggested that embryo transfer should be performed under ultrasound guidance.