ABSTRACT
The main use nowadays of skull radiography is in the assessment of trauma. It may also be useful in the detection of intracranial expanding lesions.
CT is X-ray computerized tomography or computed tomography. It was previously known as computerized axial tomography (CAT). CT is a form of structural imaging. The basis of CT is as follows:
1 X-ray beams are passed through a given tissue plane in different directions. 2 Scintillation counters record the emerging X-rays. 3 A computer reconstructs the emerging X-ray data. 4 Radiodensity maps are produced.
