Three-Dimensional Computer Reconstruction from Surface Contours for Head CT Examinations

Abstract
A 3-dimensional surface reconstruction algorithm based on contour information from anatomic sites as identified on computed tomography examinations of 3 patients with intracranial mass lesions is presented. This algorithm efficiently reconstructs the surfaces between the contours using a triangular tiling method. A 3-dimensional perspective view of the reconstructed surfaces is provided by a gray scale cathode-ray tube computer graphics system. Volume and surface area estimations are provided as a direct result of the surface reconstruction algorithm. Three cases are presented to illustrate the 3-dimensional surface reconstruction algorithm.