Ct adult chat

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Medical imaging methods that use ionizing radiation include X-ray, fluoroscopy, computed tomography (CT scan), nuclear medicine and positron emission tomography (PET scan).In general, infants, children and young adults are more sensitive to radiation than adults and older people.CT (or CAT) stands for computerised (axial) tomography.You usually have a CT scan in the x-ray (radiology) department as an outpatient. The whole appointment can take up to an hour and a half.When you’re ready, the radiographer or assistant takes you into the scanning room.A CT scanning machine is large and shaped like a doughnut.You usually lie down on the machine couch on your back.

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You might have a very detailed scan of the bowel called a CT colonography (or virtual colonoscopy).The contrast medium makes the digestive system (gut) show up more clearly in the scan.For some brain scans, you might have an injection of the contrast medium dye beforehand to make the scan clearer.This is a dye that shows up body tissues more clearly on the scan.You have the injection through a small thin tube (cannula) in your arm.

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