Monthly Archives: January 2009

Generally, there are three types of contrast material or dye used in radiographic contrast study. These are:1. Iodinated CM2. Barium sulfate solution3. Air Air is the third type of CM used in contrast studies like the chest radiography, which is very common, Barium Enema and Upper GI series. For chest radiography, the patient is instructed to inhaled deeply and hold his breath while the radiologic technologist will do the exposure. The air collected within the lungs will then act as a contrast media and will appear black in the radiograph. One of its purposes is to clearly differentiate bones and Click Here To Read More