what does barium do in a ct scan
Barium sulfate suspension Barium sulfate suspension, often simply called barium, is a contrast agent used during X-rays.[1] Specifically it is used to improve visualization of the gastrointestinal tract (esophagus, stomach, intestines) on plain X-ray or computed tomography.[2] It is taken by mouth or used rectally.[3]
Barium nitrate Barium nitrate with chemical formula Ba(NO3)2 is a salt composed of barium and the nitrate ion.