A Videofluoroscopic Swallowing Study (VFSS) is a medical imaging procedure used to evaluate swallowing function. During the test, a patient swallows food or liquid mixed with a small amount of barium, a contrast material that makes the swallowing process visible on X-ray. This allows healthcare professionals to observe the movement of the throat and esophagus in real-time. The VFSS helps identify swallowing difficulties, known as dysphagia, and can guide treatment options. It is typically performed by a speech-language pathologist in collaboration with a radiologist, ensuring a comprehensive assessment of the patient's swallowing abilities and safety.