What is a CT scan?

A CT scan (also known as "CAT SCAN" for (computed Axial tomography) is a diagnostic test that combines the use of x-rays with computer technology.  A serices of x-ray beams from many different angles are used to create cross-sectional images of the patient's body.  These images are assembled in a computer into a three-dimensional picture that can display organs, bones, and tissues in great detail.

One of the two CTs at Upper Michigan's Regional Medical Center is a spiral CT, which scans more quickly and clearly than conventional CT scanning.

The spiral CT has an option called CTA (CT Angiography), which produces a 3-D image of the arteries and veins. For some patients, CTA can be used in place of angiography, which is more invasive.