Upper gastrointestinal series tract in addition to barium, and this procedure is called double-contrast imaging. In this case the gas is referred to as the negative contrast medium. Traditionally the images produced with barium contrast are made with plain-film radiography, but computed tomography is also used in combination with barium contrast, in which case the procedure is called CT enterography. Various types of barium X-ray examinations are used to examine different parts of the gastrointestinal tract. These include barium swallow, barium meal, barium follow-through, and barium enema. The barium swallow, barium meal, and barium follow-through are together also called an upper gastrointestinal series
Colon Theater Ballet ballet performers died in a plane crash. Argentine ballet gained a higher profile during the 1980s. Maximiliano Guerra rose to the position of principal at the English National Ballet, and returned with that company to perform Swan Lake at the Colon Theater. Paloma Herrera was already well known while being a dance student at Colon Theater. Julio Bocca studied dance at the Colon, then went on to perform internationally. He founded Ballet Argentino in 1990, with a focus on young Argentinian dancers. Colon Theater Ballet helped launch the newly renovated Colon Theater during its 2010 season. Many internationally known ballet