Which imaging technique utilizes x-rays to visualize internal organ structure and function?

Fluoroscopy is a specialized imaging technique that utilizes x-rays to create real-time moving images of internal organs and structures. It allows healthcare professionals to observe the function of organs during various procedures or while patients perform actions, such as swallowing. This dynamic imaging is essential for evaluating the gastrointestinal tract, among other applications, as it provides immediate visual feedback.

In contrast, a CT Scan also uses x-rays, but it captures detailed cross-sectional images of body structures rather than providing dynamic, real-time visualization. MRI, on the other hand, uses magnetic fields and radio waves to create images and does not involve x-ray technology. Ultrasound employs sound waves to generate images and is effective for soft tissue visualization but does not involve ionizing radiation like x-rays. Hence, fluoroscopy is the specific imaging method that combines x-ray technology with the ability to visualize and assess organ motion and function in real-time.