Define the term "artifact" in imaging.

The term "artifact" in imaging refers to an error or false representation in an image that does not accurately depict the anatomy or pathology of interest. Artifacts can arise from various sources, such as patient movement, equipment malfunction, or limitations in the imaging technology used. They can manifest as unusual patterns, distortions, or incorrect information, making it crucial for radiologists and technicians to recognize and differentiate actual anatomical structures from these misleading representations. Identifying artifacts is essential for ensuring accurate diagnosis and treatment planning, as they can obscure or mimic important clinical findings. The impact of artifacts on imaging quality can hinder the assessment of a patient's condition, emphasizing the need for awareness and understanding of how they affect image interpretation.