FIG 3. When the flow signal intensity in the distal inferior petrosal sinus was saturated, the flow signal intensity in the right inferior petrosal sinus was saturated whereas the flow signal intensity in the left inferior petrosal sinus was not.

A, Section (lines) and saturation band (rectangle) position.

B, Axial view fast low angle shot 2D image. Bilateral internal carotid arteries (arrowheads) and left inferior petrosal sinus (arrow) show bright signal intensity.