A method for correcting inherent distortions in a CT or MRI imaging process, or distortions arising from excessive patient movement during the scan by means of a registration device inserted into the mouth of the patient at the time the scan is being performed. The registration device incorporates a...http://www.google.co.uk/patents/US7457443?utm_source=gb-gplus-sharePatent US7457443 - Image guided implantology methods
