Score table for visualization of retroplacental clear space on post-contrast T1-weighted MRI images of feto-placental units (FPU) at different gestational time points. Visibility was scored by a radiologist on a scale of 0–2 with 0 assigned to not visible, 1 assigned to partly visible and 2 assigned to clearly visible. Scores are given as average and standard deviations for each time point with the median score reported in brackets: E10.5 (28 FPU), E12.5 (26 FPU), E14.5 (23 FPU), E16.5 (23 FPU), E18.5 (23 FPU).