From: Different effectiveness of closed embryo culture system with time-lapse imaging (EmbryoScopeTM) in comparison to standard manual embryology in good and poor prognosis patients: a prospectively randomized pilot study
Embryo grades
EmbryoScopeTM (n = 36)
Standard (n = 40)
P value
Grade A (%)
55.8 ± 6.4
81.2 ± 4.1
0.005
Grade B (%)
36.8 ± 8.5
7.7 ± 4.1
0.01
Grade C (%)
7.3 ± 5.7
11.0 ± 4.7
0.62