A new iPad app from the Fraunhofer Institute for Medical Image Computing MEVIS in Germany is using augmented reality...

A new iPad app from the Fraunhofer Institute for Medical Image Computing MEVIS in Germany is using augmented reality technology to help surgeons remove liver tumors without damaging critical vessels within the organ. Before the surgery takes place, a CT scan is performed on the patient, allowing an accompanying software to identify and image the pathways of blood vessels. This information is then transferred to an iPad, which can be used during the surgery.

Source: http://www.mevis.fraunhofer.de/konferenzenmessen/scientific-symposium-open-house-2013.html