Computerized Axial Tomography (CAT Scan/CT Scan) is a computerized axial tomography scan is an x-ray procedure that combines many x-ray images with the aid of a computer to generate cross-sectional views and, if needed, three-dimensional images of the internal organs and structures of the body. Computerized axial tomography is more commonly known by its abbreviated names, CT scan or CAT scan. A CT scan is used to define normal and abnormal structures in the body and/or assist in procedures by helping to accurately guide the placement of instruments or treatments.
The scanner, which as many detectors as a typical multi-detector CT scanner, combines unrivaled image quality with remarkable speed. It can produce detailed pictures of any organ in a few seconds and provide sharp, clear,
three-dimensional images, including 3-D views of the blood vessels, in an instant.
A 40-slice scanner collects images covering 20 to 32 millimeters in a single pass and a tightly packed 64-slice device can cover about 40 millimeters at a pass, which takes 0.4 seconds. The technology has been particularly exciting for studying the beating heart, providing the first clear non-invasive images of the heart and its major vessels. The scans can be timed to use only images gathered between contractions, so that the heart and its vessels can be seen without the blurring caused by motion.