title: Limiting overhead views in double-contrast colon examinations does not affect diagnostic accuracy.
abstract: A prospective study was undertaken to evaluate whether reducing overhead (technician-performed) films in double-contrast colon examinations had any effect on diagnostic accuracy. Only 4 overhead films were obtained routinely: supine, both decubitus, and prone cross-table rectal views. A high detect rate was maintained, comparable to our accuracy when 7 or 8 overhead films were obtained. Our study confirms that with double-contrast colon examinations, the need for overhead films is diminished. A significant decrease in cost, radiation exposure, and examination time can be obtained. We continued to use this method without any noticeable decrease in diagnostic accuracy.
mesh_terms: D001466:Barium Sulfate; D003106:Colon / Q000000981:diagnostic imaging*; D003108:Colonic Diseases / Q000000981:diagnostic imaging*; D003365:Costs and Cost Analysis; D005069:Evaluation Studies as Topic; D006801:Humans; D011446:Prospective Studies; D011829:Radiation Dosage; D011859:Radiography; D013997:Time Factors; D014481:United States; D014962:X-Ray Film / Q000191:economics
chemical_list: D001466:Barium Sulfate