Abdominal x-ray as a scout film for other procedures such as barium enemas. An upper gastrointestinal series is where a contrast medium, usually a radiocontrast agent such as barium sulfate barium salt mixed with water, is ingested or instilled into the gastrointestinal tract, and X-rays are used to create radiographs of the regions of interest. The barium enhances the visibility of the relevant parts of the gastrointestinal tract by coating the inside wall of the tract and appearing white on the film. A lower gastrointestinal series is where radiographs are taken while barium sulfate, a radiocontrast agent, fills the colon via an
Gisela Colon Gisela Colon Gisela Colon (born 1966) is an American contemporary artist who has developed a unique vocabulary of "organic minimalism," breathing life-like qualities into reductive forms. Originally from San Juan Puerto Rico, but currently living and working in Los Angeles, California, Colon creates work that is the product of cross-cultural influences, fusing characteristics of Minimalism, Light and Space, Finish Fetish, Op Art, and Kinetic Art. Colon is best known for meticulously creating light-activated sculptures through industrial and technological processes. She is one of the few women working in the Light and Space and Finish/Fetish movements. Recognized as a successor and