Table 4:

Fetal and neonatal preoperative brain MRI findingsa

NormalpWMIHemorrhageNHPIDev. Abn.bTotal
Normal621163486
Extracerebral space220004
Ventriculomegaly300216
WM abn.101103
Immature brain200002
Vermis hypoplasia010012
Total7014766103
  • Note:—Dev. Abn. indicates developmental abnormalities.

  • a Cases with multiple abnormalities were included only once in the table on the basis of the most severe finding.

  • b Developmental anomaly includes congenital malformation, delayed maturation, and cerebral atrophy (extra-axial space and/or ventricular enlargement).