Concussions can be mild, but doctors may order a CT scan to look for a more serious injury.

VOA: special.2009.10.28

The researchers have developed rules to predict if a head injury is serious enough for a scan.

VOA: special.2009.10.28

A computed tomography,or CT,scan provides detailed images of the inner body.

VOA: special.2010.06.29

The seven-member crew controlled a robotic arm equipped with cameras and lasers to scan the surface of the heat shield.

VOA: standard.2009.07.16

A less invasive procedure known as a virtual colonscopy is done with a CT scan that passes x-rays through a patient's abdomen.

VOA: standard.2010.04.07

every year, the government is under pressure to make an official recommendation on how much radiation is safe during a CT scan.

VOA: standard.2010.04.07

But some doctors say the CT scan exposes patients unnecessarily to harmful radiation, as much radiation as a patient might receive from 400 chest x-rays.

VOA: standard.2010.04.07

The CT (Computed Tomography) Scan is a method often used to diagnose cancer.

VOA: standard.2010.01.30

Use of the CT Scan has increased dramatically since it was introduced A 2007 report in The New England Journal of Medicine estimated that at least 62 million CT scans were conducted yearly in the United States.

VOA: standard.2010.01.30