Table 2:
Variations in size measurements of cerebral venous system components by agea
| Age Category (Years) |
|||||
|---|---|---|---|---|---|
| <1 | 1–5 | 6–10 | 11–15 | 16–20 | |
| No. | 25 | 24 | 21 | 70 | 289 |
| Right transverse sinus diameter (mm) | 3.7 (2.1) | 5.4 (2.8) | 8.1 (2.0) | 7.1 (2.2) | 7.6 (2.1) |
| Left transverse sinus diameter (mm) | 3.1 (2.2) | 5.9 (3.1) | 6.4 (2.5) | 6.4 (2.4) | 6.1 (2.0) |
| Torcula | 8.4 (4.1) | 13.3 (4.5) | 15.4 (3.4) | 16.5 (4.1) | 17.4 (4.1) |
| Superior sagittal sinus | 4.0 (1.5) | 7.4 (2.5) | 8.8 (1.6) | 8.6 (1.9) | 8.7 (1.6) |
| Straight sinus | 3.9 (1.1) | 5.4 (2.7) | 5.2 (1.6) | 5.2 (1.5) | 4.8 (1.3) |
| Vein of Galen | 3.2 (0.8) | 4.4 (1.1) | 4.8 (0.9) | 4.9 (1.0) | 4.8 (1.0) |
| Right sigmoid sinus | 5.0 (2.1) | 6.7 (1.4) | 8.6 (2.4) | 10.1 (2.4) | 10.0 (1.9) |
| Left sigmoid sinus | 4.0 (2.0) | 7.3 (2.8) | 8.0 (2.2) | 8.8 (2.5) | 9.0 (2.1) |
| Right internal jugular vein | 4.4 (1.5) | 6.8 (1.4) | 9.0 (2.2) | 9.9 (2.2) | 10.0 (2.2) |
| Left internal jugular vein | 3.9 (1.4) | 6.8 (2.8) | 7.4 (1.7) | 7.8 (2.2) | 8.1 (2.1) |
a
Data are mean diameters (SD).