Why is it called Ultra-Fast CT?
A regular CT has tube rotation speed of 1 or .75 seconds. This CT has tube rotation speed of 330ms, i.e. approximately 3 rotations per second. This allows extremely fast scans of the body, such that routine chest and abdomen sequences can be completed in 3-5 seconds. That is way it is called Ultra-Fast CT.

How does CT work?
CT uses X-rays to perform its work. These X-rays come from an X-ray tube which is placed inside a square machine called the gantry. The part of your body to be scanned goes inside a hole in this gantry.

Why is CT such a good modality?
Ordinary X-ray pictures are one-dimensional representations of body parts. Just as it is necessary to slice a loaf of bread to know the quality of the slides, so also, CT allows us to section the body to look at its insides. Thus, the skull X-ray only shows us the outside, whereass CT shows us the brain inside.

Where is CT useful?
All parts of the body can be scanned with CT. For each part, there are specific indications or reasons for scanning. Your referring doctor and the consultant radiologist are the best judges of the usefulness of CT scanning in a specific situation and areas.

Are there any dangers of CT scanning?
Though X-rays involve radiation, there are no dangers, in practice. In women who are pregnant, however, CT scanning should be done after weighing all the risks and benefits.

What is the injection that I may receive?
The majority of patients will be injected with a "dye" which enhances the ability of CT scans to pick up abnormalities. This is routine. The dye used is a non-ionic contrast medium, which is considered much safer than the routine, cheaper, ionic dyes.