Also found in: Dictionary, Thesaurus, Medical, Financial, Acronyms, Encyclopedia, Wikipedia. contractor. n. 1) a person or entity that enters into a contract. 2) commonly, a person or entity that agrees to construct a building or to provide or install specialized portions of the construction.
Test Overview. Coronary calcium scans use a special X-ray test called computed tomography (CT) to check for the buildup of calcium in plaque on the walls of the arteries of the heart (coronary arteries). This test is used to check for heart disease in an early stage and to determine how severe it is. Coronary calcium scans are also called cardiac calcium scoring. The coronary arteries supply blood to the heart. Normally, the coronary arteries do not contain calcium. Calcium in the coronary arteries is a sign of coronary artery disease (CAD) . A CT scan takes pictures of the heart in thin sections. The pictures are recorded in a computer and can be saved for more study or printed out as photographs.
CT Scan Frequently Asked Questions What is a CT scan? A CT scan â also called Computerized Tomography or just CTâis an X-ray technique that produces images of your body that visualize internal structures in cross section rather than the overlapping images typically produced by conventional X-ray exams. CT scans use an X-ray unit that rotates around your body and a powerful computer. The result with CT scans is a set of cross-sectional images, like slices, of the inside of your body. Should I do anything special to prepare for a CT scan? How you prepare for a CT scan depends on which part of your body is being scanned. You may be asked to remove your clothing and wear a hospital gown. Youâll need to remove any metal objects, such as jewelry, that might interfere with image results.