What are marks, exposures, or images on a radiograph that are not part of the intended image called?

The term used to describe marks, exposures, or images on a radiograph that are not part of the intended image is "artifacts." Artifacts can occur due to a variety of reasons, such as technical errors during the radiographic process, improper handling of the film or digital image, or external factors that inadvertently affect the image quality. These unintended features can obscure critical details and may lead to misinterpretation of the radiograph, thereby impacting diagnostic accuracy.

Recognizing artifacts is essential for radiographers, as it helps them ensure the quality of the images they produce and assists in preventing potential misdiagnoses. Understanding the nature of artifacts enables professionals to take appropriate corrective measures, thereby improving the overall effectiveness of radiographic practices. In contrast, reflections, overlays, and defects do not specifically encapsulate the concept of unintended marks on a radiograph; thus, they do not convey the same meaning as artifacts in this context.