Glossary

Here are definitions of medical terms related to CT scan.

Contrast Agent: A substance used to "highlight" an organ or tissue during examination. Sometimes referred to as a "dye." Common contrast agents are: iodine, barium, and gastrografin.

Endoscopy: Examination of a body cavity by means of an endoscope, a tube-like instrument with attached lenses and light source.

Magnetic Resonance Imaging (MRI ): A computerized picture made by magnetic fields that can show detailed, cross-sectional images of the inner body.

Osteoporosis: Loss of protein tissue from bone, causing it to become brittle and easily fractured.