Definitions

Computed Tomography - Computed tomography is a non-invasive imaging technology that uses x-rays and computers to create an image of the inside of the body. Most body parts can be examined using CT.

Contrast - Many radiology procedures require a contrast agent be introduced into the body to help see the body's internal organs more clearly. Iodine agents are used for CT and catheter angiography, Gadolinium for MRI, and barium for gastrointestinal procedures.

Magnetic Resonance Imaging (MRI) - This diagnostic imaging procedure uses radiofrequencies to produce images of the body in both two and three dimension. No radiation is required with MRI

Nuclear Medicine - This imaging modality uses small amounts of radioisotopes (radiopharmaceuticals) to image anatomical function of organs. The radioisotopes are attracted to specific organs— and emit. gamma rays that can be detected externally by special types of cameras. These cameras then work in conjunction with computers to form functional images

Radiography - General radiography is the most basic form of medical imaging. It uses x-rays to create a fixed or still image of the body. Any part of the body can be examined with radiography.

Ultrasound - This is a non-invasive imaging technique that uses sound waves to produce images of the organs and soft tissues inside the body.