What is fluoroscopy primarily used for in medical imaging?

Fluoroscopy is primarily utilized for real-time imaging, allowing healthcare professionals to observe the movement of internal structures dynamically. This technique involves the continuous imaging of the internal organs and systems as they function, which is essential in various clinical settings. For example, fluoroscopy is commonly used in procedures such as barium swallow tests, cardiac catheterization, and certain types of joint injections, where understanding the movement and function of organs and systems is critical for diagnosis and treatment.

The ability to visualize motion allows practitioners to assess biomechanics, monitor the effectiveness of treatments, and guide interventions in real-time. This is especially important in fields such as gastroenterology, orthopedics, and interventional radiology, where movement plays a significant role in understanding the patient's condition and planning further treatment.

While the other options describe different types of imaging or monitoring, they do not accurately reflect the key aspect of fluoroscopy, which is its capacity for real-time visualization.