Fig 3.

Venous phase of an SCTV with a 320–detector row MDCT in a patient with pseudotumor cerebri syndrome before (A and B) and after (C and D) left transverse sinus stent placement, anterior Towne projections (A and C), and left posterior oblique projections (B and D). There is a marked reduction of the OEV (small arrow) after stent placement in the left transverse sinus (double arrows), which has recovered its normal caliber. Note the size reduction of the right transverse sinus (arrowhead) proximal to an intrinsic stenosis after stent placement due to preferential drainage of the superior sagittal sinus into the stented transverse sinus.