FIG 3. MR venograms of the craniocervical region (2D time-of-flight gradient echo images with magnetization transfer; 40/7; field of view, 15 cm; 18; flip angle, 35 degrees; resolution, 220/256; section thickness, 1.5 mm; section overlap, 0.5 mm; matrix, 256 x 256). The ACC (asterisk) and the anterior (f), posterior (g), and lateral (h) condylar veins are shown. b, transverse sinus; c, sigmoid sinus; e, inferior petrosal sinus; a, superior jugular bulb; u, internal jugular vein; i, anterior internal vertebral venous plexus; d, cavernous sinus; j, vertebral artery venous plexus.

A, Overview.

B, Focused on the right superior jugular bulb.