FIG 4.

Variations in venous sinus size by age in the left (A) and right (B) transverse venous sinuses, left (C) and right (D) sigmoid sinuses, and left (E) and right (F) internal jugular veins.

Variations in venous sinus size by age in the left (A) and right (B) transverse venous sinuses, left (C) and right (D) sigmoid sinuses, and left (E) and right (F) internal jugular veins.