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 (rhetoric) Colon (rhetoric) A colon (from Greek: , "pl." , "cola") is a rhetorical figure consisting of a clause which is grammatically, but not logically, complete. In Latin, it is called a "membrum" or "membrum orationis". Sentences consisting of two cola are called "dicola"; those with three are "tricola". The corresponding adjectives are "dicolic" and "tricolic"; "colic" is not used in this sense. In writing, these cola are often separated by colons. An isocolon is a sentence composed of cola of equal syllabic length. The Septuagint used this system in the poetic books such as the Psalms. When Jerome translated the