Lower gastrointestinal (GI) tract radiography, also called a lower GI or barium enema, is an x-ray examination of the large intestine, also known as the colon.This examination evaluates the right or ascending colon, the transverse colon, the left or descending colon, the sigmoid colon and the rectum.ower gastrointestinal (GI) tract radiography, also called a lower GI or barium enema, is an x-ray examination of the large intestine, also known as the colon.
Herr. n. pl. HerÂ·ren (hÄrâ²Én) Abbr. Hr. Used as a courtesy title in a German-speaking area, prefixed to the surname or professional title of a man. [German, from Middle High German.
a collar or enclosing band. 2. the enclosing rim within which a jewel is set. 3. a slotted cylindrical clamp inserted tightly into the tapered interior of a sleeve or chuck on a lathe to hold a cylindrical piece of work. 4. Horology. the tiny collar that supports the inner terminal of a hairspring. verb (used with object), colleted, colleting. 5. to set (a gem or other stone) in a collet.