CT (computed tomography) is a radiological method which has been used since 1974 to visualize certain regions of the body, slice by slice. Today, CT technology is an indispensable tool in medicine. It is used for routine examinations of the various parts of the body.

Normally, a coronary angiogram is done to get a clear picture of the arteries carrying blood to the heart muscle. It is invasive procedure which requires hospitalization. With the aid of 64 detector volume computed tomography, physicians are now able to look into the coronary arteries without having to introduce a catheter. Cardiac CT allows detailed evaluation of plaques in the coronary arteries, allowing accurate grading of the vessel narrowing.