Multiple x-rays from different angles around the body are reconstructed in a complex manner in order to achieve detailed three dimensional information, effectively enabling Radiologists to visualise any anatomical region of a patient. Every organ system can be individually assessed, including the vascular system. It is a particularly powerful tool in the trauma setting, where internal injuries can be detected efficiently and effectively.
Surgeons can plan operations based on information obtained by CT.
Several specialised uses of CT are available, including high resolution scanning of the lungs and temporal bones (including inner ears), angiography to assess vascular structures, cardiac CT and imaging of cancer patients.