ABSTRACT
Computed tomography (CT) is a medical imaging technique that uses X-rays to image thin slices of the body. Basically, the attenuation of X-rays produced by the soft tissues is measured at all possible paths through the patient using X-ray detectors at the opposite side of the patient. This raw data is then converted by a computer to a map or image of the X-ray attenuation at all points in a two-dimensional slice of the patient. First appearing commercially in 1972, CT is presently a very mature technology that has gone through a number of very significant advances in the last 30 plus years. These advances now allow this technology to be used effectively for cardiac imaging in the evaluation of coronary artery disease.
