Characteristics of PVS identified with the automated algorithm
| Characteristic | P Valuea | Females (n = 62) | Males (n = 56) | ||
|---|---|---|---|---|---|
| Mean (SD) | Range | Mean (SD) | Range | ||
| PVS whole brain | |||||
| PVS total No. | <.01 | 70.7 (36.1) | 20–153 | 98.4 (50.5) | 16–287 |
| PVS total volume (mm3) | <.01 | 241.2 (134) | 74.7–617 | 334.8 (192.4) | 43–1103.3 |
| PVS WM (No./cm3) | .02 | 0.1 (0.07) | 0.04–0.36 | 0.2 (0.1) | 0.04–0.6 |
| PVS volume WM (mm3/cm3) | .04 | 0.5 (0.3) | 0.16–1.3 | 0.7 (0.4) | 0.1–2.3 |
| Individual PVS cluster | |||||
| Individual cluster length (mm) | .75 | 3.6 (0.2) | 3.3–4.5 | 3.6 (0.2) | 3–4.3 |
| Individual cluster width (mm) | .35 | 2 (0.07) | 1.8–2 | 2 (0.08) | 1.7–2 |
| Individual cluster volume (mm3) | .80 | 2.9 (0.3) | 2.1–3.8 | 2.8 (0.3) | 2–3.6 |
| Cluster volume (mm3) by total cluster (No.) | .80 | 0.05 (0.02) | 0.02–0.16 | 0.03 (0.02) | 0.01–0.14 |
↵a Two-sample t test.