2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/146223This paper presents a method to reduce the invasiveness of Computer Assisted Orthopaedic Surgery (CAOS) using ultrasound. In this goal, we need to develop a method for 3D/4D ultrasound registration. The premilinary results of this study suggest that the development of a robust and ``realtime'' 3D/4D ultrasound registration is feasible.Other Computer ScienceMedical Physicstext