Which type of imaging technique uses fluoroscopy?

Fluoroscopy is an imaging technique that allows real-time visualization of internal structures and functions, which is essential for certain diagnostic procedures. In this context, bronchography utilizes fluoroscopy to visualize the bronchial tree and assess for abnormalities. This technique involves the use of a contrast agent, which highlights the airways, and the dynamic images produced help clinicians observe the movement and function of these structures during respiration.

The other imaging techniques listed, such as CT scans and MRI, use different methods for capturing images. CT scans rely on computed tomography to create detailed cross-sectional images of the body, while MRI employs magnetic fields and radio waves to generate images of soft tissues. X-rays, although they contribute to the field of medical imaging, do not provide real-time visualization as fluoroscopy does. Therefore, bronchography stands out as the correct choice regarding the use of fluoroscopy in imaging techniques.