Table 2:
Prevalence of infants with each item in GM or cerebellum score (VPT infants/term infants)
| Variables | GM or Cerebellum Score |
||||
|---|---|---|---|---|---|
| Score 0 | Score 1 | Score 2 | Score 3 | Score 4 | |
| Cortical GM | |||||
| Signal abnormality | None (97/22) | Focal unilateral (0/0) | Focal bilateral (0/0) | Extensive unilateral (0/0) | Extensive bilateral (0/0) |
| Gyral maturation | Delay < 2 weeks (96/22) | 2 ≤ delay < 4 weeks (1/0) | Delay ≥4 weeks (0/0) | ||
| Increased extracerebral space | IHD < 4 mm (61/20) | 4 mm ≤ IHD < 5 mm (20/2) | 5 mm ≤ IHD < 6 mm (8/0) | IHD ≥6 mm (8/0) | |
| Deep GM | |||||
| Signal abnormality | None (92/22) | Focal unilateral (2/0) | Focal bilateral (2/0) | Extensive unilateral (0/0) | Extensive bilateral (1/0) |
| Volume reduction | cDGMA ≥9.5 (53/20) | 9.5 > cDGMA ≥8.5 (35/2) | 8.5 > cDGMA ≥7.5 (8/0) | 7.5 > cDGMA (1/0) | |
| Cerebellum | |||||
| Signal abnormality | None (74/22) | Punctate unilateral (10/0) | Punctate bilateral (5/0) | Extensive unilateral (4/0) | Extensive bilateral (4/0) |
| Volume reduction | cTCD ≥50 mm (43/20) | 50 mm > cTCD ≥47 mm (31/2) | 47 mm > cTCD ≥44 mm (18/0) | cTCD < 44 mm (5/0) | |
Note:—cDGMA indicates corrected deep GM area (cm2); cTCD, corrected transcerebellar diameter; IHD, interhemispheric distance.