Which procedure allows for the visualization of organs in motion using X-rays?

Fluoroscopy is the procedure that enables the visualization of organs in motion using X-rays. This technique allows for real-time imaging, which is particularly useful for observing the functioning of various systems within the body, such as the gastrointestinal tract during barium studies or the heart during specific imaging tests. Unlike static X-rays that capture still images, fluoroscopy provides continuous imaging, allowing healthcare providers to monitor movement and function over time. This dynamic capability is essential for diagnosing conditions that require an understanding of how organs move or respond, such as observing swallowing mechanics or assessing joint function.