Table 4:

Distribution of abnormal brain MRI findings among fetuses with CHD per trimester of pregnancy (n = 35)a

Brain AbnormalitiesSecond TrimesterThird TrimesterTotal
Increased extra-axial spaces1910
Ventriculomegaly41014
Vermian hypoplasia033
Immature appearance224
White matter signal hyperintensity022
Cysts022
Total72835
  • a Two fetuses were scanned twice, once at each trimester. One had immature brain appearance, and the other had bilateral ventriculomegaly. Both anomalies were detected at the second-trimester MRI and persisted at the third-trimester MRI.