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X-ray CT, because it is the most commonly known form. CT produces data that can be manipulated in order to demonstrate various bodily structures based on their ability control 24ct micro pdf absorb the X-ray beam. Another example is archaeological uses such as imaging the contents of sarcophagi.

Use of CT has increased dramatically over the last two decades in many countries. An estimated 72 million scans were performed in the United States in 2007. One study estimated that as many as 0. United States are due to CTs performed in the past and that this may increase to as high as 1. CT colonography for people with a high risk of colon cancer, or full-motion heart scans for people with high risk of heart disease.

Taken with intravenous contrast medium. Tumors can be detected by the swelling and anatomical distortion they cause, or by surrounding edema. Ambulances equipped with small bore multi-sliced CT scanners respond to cases involving stroke or head trauma. Even in emergency situations, when a head injury is minor as determined by a physician’s evaluation and based on established guidelines, CT of the head should be avoided for adults and delayed pending clinical observation in the emergency department for children.