MRA of venous sinus thrombosis.

Intracranial venous magnetic resonance angiography (MRA) provides excellent visualization of dural venous sinuses and large deep and superficial cerebral veins noninvasively. It is a very useful imaging technique to evaluate venous sinus thrombosis. It also provides the planning and monitoring endovascular thrombolytic treatment for dural sinus thrombosis. Familiarization with normal intracranial venous anatomy and its normal variants as well as recognition of its pitfalls and artifacts of the venous MRA techniques are critical for making interpretation of venous sinus thrombosis correctly.