What is a ct scan used to detect? How long does it take for a ct scan?
What is a CT scan? "CT" stands for " computerized tomography ." A newer way of looking inside the human body, it uses pencil like x-ray beams to scan the section of the body being studied. It combines the speed of a computer with the sensitivity of the x-ray detectors. Sometimes you will hear the terms tomographic scanner, ACTA scanner ("ACTA" stands for "automatic computerized transverse axial scanner"), or CAT ("computerized axial tomography"). They all mean the same thing. How does the CT scanner work? The CT takes a three dimensional look inside the body. The scanner has an arm which directs the beam through the body as it rotates around you. The x-rays pass through the body and are detected by an electronic device. About 160 scans are made in one position; then the detectors are rotated and the 160 scans are repeated. Link What does the computer do? As the beam moves around the body in the same plane, a minicomp...