All of the 5 cases had dural or petrous bone infiltration.

As single criteria modification, we included all patients with petrous bone fracture, even without carotid canal involvement.

In this examination, we evaluated the potential of the petrous bone for human identification of skeletal remains in forensic case work.

The energy dose applying a petrous bone protocol resulted in an average increase by a factor 1.5 using a multislice CT.

They discovered this through analysing DNA extracted from the petrous bones in the skulls of ancient skeletons.