3D RECONSTRUCTIONS OF NEUROFUNCTIONAL STRUCTURES FOR NEUROIMAGING

An improved method for computer-aided 3D reconstruction of neuroanatom ical structures derived from intracranially fixed human brains is demo nstrated. The embedded brains are cut into slices. The sliced surfaces are photographed. The outlines of the neuroanatomical structures are drawn onto transparencies which are scanned. The surfaces of the struc tures are 3D reconstructed with the triangulation method. The cortical structures of the human brain are complex, resulting in possible ambi guities for triangulation which must be solved interactively. These su rface reconstructions allow for 3D visualization of the brain and its components comparable with intravital conditions found in clinical neu roimaging. Copyright (C) 1996 Elsevier Science Ltd