COMPUTER-ASSISTED 3-DIMENSIONAL RECONSTRUCTION OF THE CORTICOSPINAL SYSTEM AS A REFERENCE FOR CT AND MRI

We present a three-dimensional (3D) anatomical computer-graphics model of the corticospinal system acquired from equi-distant serial anatomi cal slices of six intracranially-fixed human brains. This model is par t of a neuroanatomical reference system (NeuRef) which enables 3D visu alization of the brain and shows the relationship of its components su ch as anatomical structures, functional fibre tracts and arteries. Sec tions through the models can be matched with corresponding CT or MR im ages. This allows the probable localisation of corticospinal fibres on CT or MRI.