Table 2 The imaging characteristics of the subject
From: Dilated perivascular spaces and steno-occlusive changes in children and adults with moyamoya disease
Total (n = 51) | Child (n = 26) | Adult (n = 25) | P value | ||
|---|---|---|---|---|---|
WM-dPVS, n (%) | 0.767 | ||||
Low grade | Degree 1, 1–9 | 2 (3.9) | 1 (4) | 1 (3.8) | |
Degree 2, 10–19 | 4 (7.8) | 2 (8) | 2 (7.7) | ||
High grade | Degree 3, 20–39 | 20 (39.2) | 8 (32) | 12 (46.2) | |
Degree 4, ≥ 40 | 25 (49.0) | 14 (56) | 11 (42.3) | ||
BG-dPVS, n (%) | 1.000 | ||||
Low grade | Degree 1, 1–4 | 45 (88.2) | 22 (88) | 23 (88.5) | |
Degree 2, 5–9 | 6 (11.8) | 3 (12) | 3 (11.5) | ||
High grade | Degree 3, 10–19 | 0 | 0 | 0 | |
Degree 4, ≥ 20 | 0 | 0 | 0 | ||
MRA score, median (range) | 6 (2–9) | 5 (2–9) | 6 (3–9) | 0.033 | |
MRA grade, median (range) | 3 (2–4) | 3 (2–4) | 3 (2–4) | 0.050 | |