Barium X-ray
A barium X-ray is an imaging study in which a patient swallows (or receives by mouth or tube) a contrast material made of barium so that the gastrointestinal tract or airway can be visualized on X-ray images.[1]
Videofluoroscopic swallow study
A videofluoroscopic swallow study (VFSS) is a dynamic X-ray examination that records swallow function in real time while barium contrast is swallowed.[1]
What each study is used to evaluate
A barium X-ray is commonly used to evaluate structural abnormalities or transit of contrast through a specific region of the gastrointestinal tract.[1]
A VFSS is used to evaluate swallowing physiology and to detect complications such as aspiration and penetration during swallowing.[1]
How the procedures typically differ
A barium X-ray is generally performed as a series of static or limited-motion X-ray images after contrast ingestion.[1]
A VFSS uses continuous video fluoroscopy to capture the timing and mechanics of the swallow.[1]
Typical output and information gained
A barium X-ray typically produces images that show where barium flows and whether there is narrowing, obstruction, reflux patterns, or other abnormalities in the targeted region.[1]
A VFSS typically produces a recorded study that shows swallow phases, airway protection, and the occurrence and timing of aspiration or residue.[1]