FROM RAW DATA TO WWW COMPATIBLE VISUALIZATION AND MANIPULATION - IMAGING HUMAN ELECTRIC POTENTIALS

This paper describes a pilot system that acquires images of the electr ic potentials within the human body and stores the results in a format accessible and visualizable through the WWW. The proposed system uses a system of external electrodes to acquire measurements of electric p otentials at the level of the skin, followed by an algorithm that reco nstructs the value of the electric potential in the interior of the hu man body, thus producing a three-dimensional (3D) image. The main aspe cts of the reported work is the visualization of the results in such a way that the acquired information can be imaged through the WWW so th at the diagnostically useful information can be maximized. For this re ason, the voxels of the acquired electric image are labeled using a co nventional CT image from the same patient whereas a triangulation algo rithm (marching cubes - MC) is used to create the VRML output for info rmation visualization. (C) 1998 Elsevier Science B.V.