**5.2.10 Ultrasound guided embryo transfer**

In a meta-analysis of clinical trials (on 5,968 ET cycles), comparing ultrasound guided ET vs. clinical touch ET (Abou-Setta et al., 2007), it was found that ectopic pregnancy rates were no different between the two groups. In a another meta-analysis on 17 studies,(Brown et al., 2010), it was found the same results, although it was stated that EP are relatively rare and study sample sizes limit the ability to detect such differences. Even when a single clinician performs all embryo transfers, (Kosmas et al., 2007), no difference in ectopic pregnancy rates was found.
