What is a CT Scan?
Computed Tomography (CT), also known as Computerized Axial Tomography (CAT), uses X-rays to make multiple images (or pictures) of the body.
During some CT scans a liquid called "contrast" may be used. Contrast helps highlight some blood vessels and organs in your body.
Two common types of contrast used in CT scans are:
- IV contrast (Iodine): IV contrast helps highlight your blood vessels, liver, kidneys and brain. During the injection of IV contrast, you may feel a warm sensation or a hot "flushed" feeling and you may have a "metallic" taste in your mouth. This is normal and will last just a few seconds.
- Oral contrast: Oral contrast is often used for taking X-rays (images) of the abdomen and pelvis. Oral contrast enhances the stomach and gastrointestinal tract.