A method and apparatus are provided for superimposing the position and orientation of a diagnostic and/or treatment device on a previously acquired three-dimensional anatomic image such as a CT or MRI image, so as to enable navigation of the diagnostic and/or treatment device to a desired location. A...http://www.google.com.tw/patents/US20030018251?utm_source=gb-gplus-share專利 US20030018251 - Cardiological mapping and navigation system
