What is it ?
CT (Computed Tomography) is a diagnostic test that combines the use of x-rays with computer technology .A series of x-rays beams from different angles around the body are used to show cross sectional images of the patient's body. The images so obtained are assembled in a computer into a three- dimensional picture that can display organs, bones & tissues in great detail.

In spiral CT the examination table advances at a constant rate through the scanner gantry. While the x-ray tube rotates continuously around the patient, tracing a spiral path through the patient. This spiral path gathers continous data with no gaps between images.

CT Angiography (CTA) is an examination that is used to visualize blood vessels in many areas of the body including the brain, kidneys, pelvis and the arteries serving the lungs. Compared to catheter angiography, which involves injecting contrast medium into an artery CTA is much less invasive & a more patient friendly procedure; contrast medium is injected into a vein rather than an artery.