Angiographic Protocol of the Posterior Base of the Skull
Exploring a lesion developed from the posterior fossa or the temporal bone raises multiple topographical problems. The density of the bone structures of this region requires excellent subtractions for optimal visualization of the various vascular structures. Superselective injections and cartographic reconstructions are mandatory to evaluate the extension of the lesion and its relationship to skeletal landmarks and to plan appropriate therapy. The angiographic protocol used to study this area (Table 16.1) is roughly the same for three adjacent regions: the cerebellopontine angle, the cerebellar fossa, and the temporal bone. However, some differences exist in the angiographic evaluation of each region.
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