Objective: To evaluate the integration of ultrasound Amplitude (A)-mode based surface matching for non-invasive registration of the head into a frameless computer aided surgery system for Oto-Rhinology and Skull Base Surgery, and its accuracy. Design: Experimental study and case series. Setting: Academic medical center. Patients: Twelve patients underwent anterior/para-nasal skull base surgery ...

ontology is the main infrastructure of the semantic web which provides facilities for integration, searching and sharing of information on the web. development of ontologies as the basis of semantic web and their heterogeneities have led to the existence of ontology matching. by emerging large-scale ontologies in real domain, the ontology matching systems faced with some problem like memory con...