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
Joseph Colon Trabotto Joseph Colon Trabotto Joseph Colon ben Solomon Trabotto, also known as Maharik, (c. 1420 in Chambéry – 1480) was a 15th-century rabbi who is considered Italy's foremost Judaic scholar and Talmudist of his era. Colon (whose name is related to the French word "", or 'dove') was a scion of the Trabotto family, which traced its lineage to Rashi and was known for its large number of scholars. After the final expulsion of Jews from the French Kingdom in 1394, his family emigrated first to the Franche-Comté and subsequently settled in the city of Chambéry, the capital of the Duchy