Computed tomography is usually necessary following x-rays or ultrasounds, or other specialist visits, to delve deeper into the patient's clinical picture.
In particular, computed tomography is used to search for primary tumors or secondary localizations, to study the central nervous system but also the vascular system, in particular the arteries. The main areas of application of computed tomography, therefore, are neurological, skeletal, traumatological, oncological, gynecological, vascular, but the CT scan is also useful for the study of the digestive and urinary systems. Finally, computed tomography is widely used in emergency conditions, for example following cerebral hemorrhages or ischemia, aneurysms, embolisms.
Furthermore, those who suffer from claustrophobia can undergo computerized tomography: the tunnel, in fact, is wide and short.
Speaking of radiation, this can even exceed 40-50 times that needed in a common x-ray: therefore it is important that the circumstances expressly require this examination. In any case, the maximum dose of radiation emitted is significantly lower than that which could cause harm to the patient.