Most patients suffering head trauma undergo CT scanning of the head. Most clinically significant temporal bone fractures will be demonstrated on this initial CT evaluation. The use of additional scanning, such as MRI and high resolution CT (HRCT) is controversial. Some authors argue that clinically relevant fractures that are missed on screening CT will be identified on HRCT. Others argue that fractures missed on routine scanning will have no impact on clinical management. Most agree, however, that HRCT is indicated when surgical intervention is being considered.
This CT scan shows a longitudinal temporal bone fracture.