Computed Tomography

A CT scanner uses x-rays to produce an image of a slice or cross section of the body // the patient lies on a bed or table which slides into a cyclinder containing the scanner // the scanner rotates around the body emitting x-rays // the radiate which passes through some tissues and is reglected off others is analysed by the slices // these slices can be processed into a 2D or 3D structure of the body.
CT scanning can be useful for detecting and examining conditions affecting the brain, such as the damage caused by head injury, tumor's and strokes.
Advantages: images produced are much clearer and more detailed // can produce images of structures encased in bone (the brain // produces digital images which are stored on a computer so can be analysed digitallym
As with X-rays radiation is potentially harmful / risk of cancer // high cost of equipment // large machine // can feel claustrophobic

Resource summary

	Created by Emily Meylan almost 11 years ago