What is computed tomography? What can a person anticipate during a CT procedure? How is CT used in most cancers screening? What is total-physique, BloodVitals test or complete-physique, CT? What is combined PET/CT? Is the radiation from CT dangerous? What are the risks of CT scans for kids? What is being done to scale back the extent of radiation publicity from CT? What's NCI doing to improve CT imaging? Where can folks get more details about CT? What is computed tomography? Computed tomography (CT) is a noninvasive imaging process that makes use of special x-ray tools to create detailed pictures, BloodVitals home monitor or scans, of areas contained in the body. Each picture created throughout a CT process reveals the organs, bones, and BloodVitals test other tissues in a thin "slice" of the physique. Your complete series of photos produced in CT is like a loaf of sliced bread-you may take a look at each slice individually (2-dimensional photos), or you can take a look at the entire loaf (a 3-dimensional picture).

Computer packages are used to create each sorts of footage. Modern CT machines take steady photos in a helical (or spiral) trend somewhat than taking a series of footage of particular person slices of the body, as the original CT machines did. Helical CT (also known as spiral CT) has a number of advantages over older CT techniques: it is quicker and produces better quality 3-D pictures of areas inside the body, which may enhance detection of small abnormalities. In addition, CT is extensively used to help diagnose circulatory (blood) system diseases and circumstances, corresponding to coronary artery illness (atherosclerosis), blood vessel aneurysms, and blood clots