What is computed tomography? What can an individual count on during a CT procedure? How is CT utilized in most cancers screening? What is complete-body, or complete-physique, CT? What is combined PET/CT? Is the radiation from CT dangerous? What are the dangers of CT scans for youngsters? What's being carried out to cut back the level of radiation publicity from CT? What's NCI doing to enhance CT imaging? Where can individuals get extra details about CT? What's computed tomography? Computed tomography (CT) is a noninvasive imaging procedure that makes use of special x-ray equipment to create detailed photos, or scans, of areas inside the physique. Each image created throughout a CT process exhibits the organs, wireless blood oxygen check bones, and different tissues in a thin "slice" of the body. All the series of pictures produced in CT is like a loaf of sliced bread-you can look at every slice individually (2-dimensional photos), or you'll be able to look at the whole loaf (a 3-dimensional picture).
Computer programs are used to create each types of photos. Modern CT machines take continuous pictures in a helical (or spiral) fashion relatively than taking a collection of pictures of individual slices of the physique, as the unique CT machines did. Helical CT (additionally called spiral CT) has several advantages over older CT methods: it is quicker and produces better high quality 3-D photos of areas inside the body, which can improve detection of small abnormalities. In addition, CT is extensively used to help diagnose circulatory (blood) system diseases and situations, resembling coronary artery disease (atherosclerosis), wireless blood oxygen check vessel aneurysms, and blood clots