Ultrafast C.T
An Ultrafast CT scan is a faster type of CT scanning. A beam of energy is aimed at the heart or other body part being studied. A plate behind the body part captures the variations of the energy beam as passes through skin, tissue, muscle and organs. So it is basically a quick x-ray. The Ultrafast CT is fast enough to take multiple images of the heart within the time of a single heartbeat, thus providing much more detailed image about the heart's function and structures. Because of this speed of photographing the coronary arteries can be seen in a much higher detail, than with a standard CT scan (which is slower).
This scanning can also detect calcium buildup in the arteries of the heart
(coronary arteries). The amount of calcium detected in your coronary arteries
has been found to be a marker for the presence of coronary artery disease.
If the calcium builds up within the arteries they will narrow the blood flow
to the heart and can eventually block them off causing chest pains, or can
lead to a heart attack.
These Ultrafast CT machines are connected to a computer, which processes the information taken from the x-rays. The information is then sent a screen and the image can be viewed in a two dimensional form on a monitor.