Which term is associated with diagnostic imaging that uses radiation?

The term that is associated with diagnostic imaging using radiation is X-ray. X-rays operate by transmitting a controlled amount of ionizing radiation through the body, capturing images of structures such as bones and certain organs based on how different tissues absorb the radiation. This technique is particularly effective in evaluating injuries, fractures, and certain diseases.

In a CT (computed tomography) scan, although it also utilizes radiation to generate detailed images of cross-sectional views of the body, the foundational technology and common understanding of basic imaging using radiation often refers back to X-rays.

Ultrasound, on the other hand, uses sound waves instead of radiation to visualize internal organs and structures, making it a non-invasive imaging technique devoid of any associated radiation exposure. Similarly, MRI (magnetic resonance imaging) relies on strong magnetic fields and radio waves for imaging, which also eliminates the risk of radiation exposure.

Thus, X-ray stands out as the primary term in diagnostic imaging that specifically employs radiation as part of its imaging process.