Which of the following procedures is commonly performed using fluoroscopy?

Barium swallow studies are commonly performed using fluoroscopy because this imaging technique allows for real-time observation of the swallowing process. During a barium swallow study, the patient ingests a barium-containing solution that enhances the visibility of the esophagus and other parts of the gastrointestinal tract on X-ray images. The use of fluoroscopy enables healthcare providers to witness the dynamic movement of barium as it travels through the esophagus, making it an invaluable tool for diagnosing issues such as dysphagia, esophageal strictures, or other abnormalities related to swallowing function.

In contrast, MRI brain scanning relies on magnetic fields and radio waves to produce images and does not utilize fluoroscopy. Likewise, CT imaging of the abdomen is a form of cross-sectional imaging using X-rays but does not involve real-time observation typical of fluoroscopy. An X-ray of the neck may be performed as a static image rather than requiring continuous monitoring of motion or function, which further differentiates it from fluoroscopy's intended use. Thus, barium swallow studies stand out as a procedure where fluoroscopy is essential for providing detailed functional insights.