Abstract
A precise knowledge of the localization of an intracerebral mass is a basic requirement for the planning of neurosurgical operations. Stereotactic atlases offer the possibility to adapt pre-operative imaging data onto normal anatomical conditions in the CNS. These atlases, however, reflect the standard variants of the CNS and do not allow to draw conclusions on local and secondary changes of the anatomy caused by the presence of pathological processes. The physical model proposed in this paper provides an estimate of the displacement of brain areas by an intracerebral mass. The modeling of brain parenchyma deformation is based on the mechanics of deformed media. The implementation of the model is successful in the group of primary brain tumors and meningiomas, and uses empirically-obtained data of a prospectively-selected patient population. The aim of the proposed model is, as further step, the integration and adaptation in apposite software solutions for the stereotactic orientation in the CNS.
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