Magnetic resonance venography and computed tomography
venography are the imaging modalities of choice for the diagnosis
of CVST. Magnetic resonance imaging combined with
MRV have largely replaced invasive cerebral angiography
and conventional computed tomography in the diagnosis of
CVST [17,18]. MRI confirms the diagnosis and shows the
consequences of thrombosis such as cerebral edema, infarction
and hemorrhage, as well as the anatomy of the disturbed
venous circulation. There are, however, pitfalls of this technique,
which may, in doubtful cases, make cerebral angiography
necessary [8,17]. CT often remains the first imaging
modality to be used – simply because of availability, and also
to exclude other conditions such as intracerebral hemorrhage