CT Scan (Computed Tomography)
A CT, sometimes called a CAT scan, is one of the most useful diagnostic examinations available and allows for the visualization of organs, bones and blood vessels. It is especially useful because it can show several types of tissue – lung, bone, soft tissue and blood vessels. A rotating X-ray device and advanced computer create detailed cross-sectional images of regional anatomy. Radiologists can examine the body one slice at a time. This makes it possible to diagnose cancers, heart disease, infection, trauma, and muscle or bone disorders. Most CT scans are performed as outpatient procedures. The scanner looks like a large donut with a narrow table in the middle. Once the exam begins, the table moves slowly into the round opening of the CT scanner.
How to prepare for a CT Scan:
- Wear comfortable, loose-fitting clothing.
- Avoid clothing with snaps or zippers.
- Some exams may require you to drink a contrast material one to two hours prior to your exam.
- You may be asked to remove your clothing and dress in a hospital gown.
- You will need to remove any metal objects such as jewelry.
- Depending on the part of your body being scanned, you may be asked to take laxatives or enemas.
- Make sure you tell your technologist if you become anxious in confined spaces or are claustrophobic.