Table 4:
Size and morphologic change of FAs of BAVMsa
| Location of FA | No. of FAs | No. of Stable FAs | No. of Regressive FAs/Total Regression | P Value of Regression in Small FAs (<5 mm) |
|---|---|---|---|---|
| Supratentorium | 98 | 56 (57) | 42 (43)/20 (20) | |
| ACA | 26 | |||
| <5 mm (%) | 26 | 9 (35) | 17 (65)/13 (50) | NA |
| ≥5 mm (%) | 0 | 0 (0) | 0 (0) | |
| MCA | 30 | |||
| <5 mm (%) | 25 | 9 (36) | 16 (64)/9 (36) | .36 |
| ≥5 mm (%) | 5 | 3 (60) | 2 (40)/0 (0) | |
| ICA | 42 | |||
| <5 mm (%) | 36 | 29 (80) | 7 (19)/0 (0) | .57 |
| ≥5 mm (%) | 6 | 6 (100) | 0 (0) | |
| Infratentorium | 13 | 3 (25) | 9 (75)/2 (17) | .31 |
| <5 mm (%) | 12 | |||
| ≥5 mm (%) | 1 | 1 (100) | 0 (0) | |
| Overall | 111 | 60 (54) | 51 (46)/26 (23) | .036b |
| <5 mm (%) | 99 | 50 (51) | 49 (49)/26 (26) | |
| ≥5 mm (%) | 12 | 10 (83) | 2 (17)/0 (0) |
a
Data in parentheses are percentages. Numbers in parentheses do not add up to 100% due to rounding.
b
P < .05, indicates statistical significance.