Lower gastrointestinal series Lower gastrointestinal series A lower gastrointestinal series is a medical procedure used to examine and diagnose problems with the human colon (large intestine). Radiographs (X-ray pictures) are taken while barium sulfate, a radiocontrast agent, fills the colon via an enema through the rectum. The term barium enema usually refers to a lower gastrointestinal series, although enteroclysis (an upper gastrointestinal series) is often called a small bowel barium enema. This test may be done in a hospital or clinic. The patient lies on the X-ray table and a preliminary X-ray is taken. The patient is then asked to lie on the
American Society of Colon and Rectal Surgeons medical education courses. For this provision, it is accredited by the Accreditation Council for Continuing Medical Education. The ASCRS holds an annual conference "to provide participants with in-depth and up-to-date knowledge relative to surgery for diseases of the colon, rectum, and anus", with an emphasis on patient care, teaching, and research. The ASCRS is a participant in the American Joint Committee on Cancer. In 2016, the American College of Surgeons reported on its partnership with the ASCRS in developing technical skill assessments in the colorectal surgery field. The ASCRS was one of the contributors in the formation of the National