Patent ID: 8213693

Claim:
A system to navigate in an area of interest of an imaged subject in relation to an acquired image of the imaged subject, comprising: an intracardiac echocardiography (ICE) imaging system having a transducer operable to acquire image data so as to create a four-dimensional image model of the imaged subject, the model defined in spatial relation and orientation relative to an image coordinate system; a tracking system operable to track movement and orientation of the transducer through the imaged subject relative to a tracking coordinate system; and a controller electrically connected in communication with the imaging system and the tracking system, the controller having a processor operable to execute a plurality of program instructions stored in a memory, the plurality of program instructions in combination with the processor operable to: register the image coordinate system with the tracking coordinate system; and calibrate the image coordinate system and the tracking coordinate system relative to a common reference having a plurality of fiducials of known spatial relation.