A developer is a chemical solution that changes the film latent image to a visible image composed of black metallic silver.

Chemical, usually acetic acid in the fixer and sodium carbonate in the developer, to neutralize the developer and to swell the gelatin, respectively.

See also Film Processor and X-Ray Film.

The testing on software performed by the developers, usually during the development process; also, the first of several stages in the software testing process.

See also Beta Test.

Baro-Cat® is a barium sulfate suspension for use as an aid for computed tomography of the gastrointestinal tract. The contrast medium contains additional pineapple-banana flavor suspending agents, simethicone, potassium sorbate, citric acid, sorbitol, artificial sweetener and water.
Individual technique will determine the suspension quantity and specific procedure used. For computed tomography of the upper gastrointestinal tract should the patient drink 300 mL Baro-Cat® approximately 2 hours before and an additional 300 mL approximately 15 minutes prior to the CT scan. For total bowel opacification the patient should drink additional 300 mL the night before the examination. If rapid transit is desired, administer the suspension chilled. Rectally administered the contrast agent should be at room temperature to body temperature.

Biliscopin® Infusion, an iodinated contrast medium for intravenous cholecystography is secreted actively by the hepatocytes. The biliary excretion rate of a biliary contrast medium is determined by the binding to plasma proteins and liver receptor proteins, and by its transport maximum for the liver. Because of its high hepatocellular transport rate, Biliscopin® Infusion leads rapidly to high grade contrast density in the intra-hepatic and extra-hepatic biliary ducts as well as in the gallbladder.
Computed tomography with biliary contrast agents provides maximum quality preoperative imaging of the biliary tract.