Complications of radiographer performed double contrast barium enema examinations.
Detection of colorectal carcinoma on double contrast barium enema when double reporting is routinely performed: an audit of current practice.
Evaluation of double contrast barium enemas performed by radiographic technologists.
Double contrast barium enema radiographic studies dis play the entire colon, but, partly due to limitation of two-dimensional viewing, have a detection rate much lower than that of colonoscopy.
(26) These guidelines include the use of FOBT, colonoscopy, and double contrast barium enema. Current guidelines are often expensive and uncomfortable.
A similar study at the University of Texas Medical Branch, Division of Gastrointestinal Radiology, noted the same results and determined that a well-trained technologist can adequately perform the fluoroscopic component of a double contrast barium enema. The study also concluded that efficient use of radiologists' time is greatly improved because they do not have to move between rooms performing the fluoroscopic portion of the examination.
A study conducted in 1989 at the Cleveland Clinic revealed that technologists competently performed gastrointestinal studies with an average fluoroscopy time of 4.1 minutes for esophagrams and 3.2 minutes for a double contrast barium enema. The authors stated that "in no case was the technologist rated as performing worse than staff or residents (and) in fact, in some cases, residents performed lower quality esophagrams than staff and technologists."
* Feczke et al reported that compensating filters reduced radiation exposure during double contrast barium enema
examinations by 14% to 19%.
Pedunculated colonic polyps form the "Mexican hat sign." These polyps possess discrete stalks and occasionally can be observed "en face" hanging from the nondependent wall of the colon on double contrast barium enemas