How can mucosal, deep mucosal or submucosal, and extraluminal or subserosal lesions be differentiated from one another on a contrast study? How do intraluminal masses appear on a contrast study? If it is necessary to evaluate an image that is not labeled for position, how does one determine which position the patient was in when the film was taken? List four relative contraindications to barium enema. List three absolute contraindications to barium enema. What are the advantages of barium over water-soluble contrast agents? What are the strengths of a double-contrast barium enema study? What complication is associated with barium? What complication is associated with water-soluble contrast? What is a barium swallow? What is an upper gastrointestinal study? What is the approach to evaluating a conventional abdominal radiograph? What is the difference between ERCP and PTC? What is the difference between an SBFT study and enteroclysis? When can barium be used? When is a single-contrast barium enema used? When should a water-soluble contrast agent be used? Book traversal links for Radiography ‹ What strengths does MRI have over CT for liver imaging? Up How can mucosal, deep mucosal or submucosal, and extraluminal or subserosal lesions be differentiated from one another on a contrast study? ›