Which term is an image produced on photosensitive film by exposing it to radiation and then processing it?

• A. CT Scan
• B. Radiograph
• C. Arthrogram
• D. Myelogram

Answer: (B)

An image produced on photosensitive film after exposure to radiation and subsequent processing is called a radiograph. This term describes the traditional X-ray picture created when beams pass through the body and expose film, which is then developed to reveal the internal structures. A CT scan, by contrast, uses computer reconstruction of many X-ray measurements to form cross-sectional images and is typically viewed on a monitor rather than as a single film image. An arthrogram or myelogram refers to specific procedures that use contrast to outline joints or the spinal canal; the images obtained from those studies can be radiographs, but the image itself is still termed a radiograph.