Abstract: A medical imaging system comprises a head mount display device through which a user can view a patient or an image of the patient, a first tracking system configured to determine a position and orientation of a medical device, a second tracking system configured to determine a position and orientation of the head mount display device, at least one marker whose position and orientation is detectable by the second tracking system and that has a known or determinable position and orientation relative to a frame of reference of the first tracking system, or whose position and orientation is detectable by the first tracking system and that has a known or determinable position and orientation relative to the head mount display device and processing circuitry configured to register the frame of reference of the first tracking system and a frame of reference of the head mount display device using the position and orientation of the at least one marker and display at least one of: a representation of the medical devic

Abstract: A medical imaging data processing apparatus for identifying an interface between anatomical features comprises a receiving unit configured to receive first medical imaging data that represents a region of a subject at a first time, and second medical imaging data that represents the region of the subject at a second, later time, a registration unit configured to perform a registration procedure to obtain registration data representative of a registration between the first medical imaging data and the second medical imaging data, and an interface identification unit configured to determine a variation of the registration data with location and to identify an interface between an anatomical feature and at least one further anatomical feature based on said variation of the registration data with location.

Abstract: A medical imaging data processing apparatus for identifying an interface between anatomical features comprises a receiving unit configured to receive first medical imaging data that represents a region of a subject at a first time, and second medical imaging data that represents the region of the subject at a second, later time, a registration unit configured to perform a registration procedure to obtain registration data representative of a registration between the first medical imaging data and the second medical imaging data, and an interface identification unit configured to determine a variation of the registration data with location and to identify an interface between an anatomical feature and at least one further anatomical feature based on said variation of the registration data with location.