Table 4.
MRI Data
| Parameter | ACP, n=24 | No ACP, n=20 | Total |
|---|---|---|---|
| MRI postop day | 8 (7–10) | 7 (7–8)* | 7 (7–9) |
| Preop hemorrhage, no., (%) | 1 (4) | 2 (10) | 3 (7) |
| Postop hemorrhage, no., (%) | 6 (25) | 3 (15) | 9 (20) |
| Preop infarction, no., (%) | 3 (13) | 1 (4) | 4 (9) |
| Postop infarction, no., (%) | 4 (17) | 3 (15) | 7 (16) |
| Preop PVL, no., (%) | 0 | 0 | 0 |
| Postop PVL, no., (%) | 0 | 0 | 0 |
| Any preop finding, no., (%) | 4 (17) | 3 (15) | 7 (16) |
| Any pre/postop finding, no., (%) | 8 (33) | 4 (20) | 12 (27) |
| New postop lesions, no., (%) | 8 (33) | 3 (15) | 11 (25) |
Data expressed as numbers of patients and percentages for MRI findings, and median days (25th–75th percentile interquartile range) for MRI days postoperatively. No significant changes detected by Fisher Exact Test, for between groups at each time, or within groups for before/after MRI.
*
Significant difference, p<0.05, between groups for postop MRI day by MannWhitney Rank Sum Test. PVL, periventicular leukomalacia.