Radiography (X-Ray Imaging)
Radiography uses ionizing radiation to provide images of tissues, organs, bones and vessels in the body. These images are displayed on a video monitor. Radiography is the oldest and most frequently used form of medical imaging and is used in many ways to diagnose disease and injuries. (In the past, X-ray images were recorded on film.)
Types of Radiography
Myelography is an X-ray of the spinal cord and the space surrounding it. The X-ray film, or myelogram, is taken after injecting a contrast material through a needle placed in this space. A myelogram provides a detailed picture of the spinal cord and spinal column and any abnormalities that may be present, such as spinal lesions, or distortions of the spinal cord, spinal canal and spinal nerve roots.
Fluoroscopy is an imaging tool that makes a moving X-ray picture of internal organs. Barium, a contrast substance, may be given to a patient in advance of the test to better visualize the structure. An X-ray beam is pulsed through the patient, and the X-rays then strike a fluorescent plate. The radiologist can view the images live on a TV monitor. A continuous image is transmitted to the monitor to view the body part and its motion. Fluoroscopy is used to look at many body systems (e.g., the skeletal, digestive, urinary, respiratory and reproductive systems) and to evaluate specific areas of the body.