Self-Assessment Quiz Radiology Imaging has assumed a huge role in the management of patients, whether hospitalized or not. Depending upon the patient population and clinical problem, a variety of imaging modalities are available for use, some more appropriate than others. To understand which modality to use for a particular problem, all imaging modalities must be reviewed with emphasis on method of generating an image, costs, strengths and weaknesses and associated risks. Film exposed to radiation.
Resultant image reflects differences in density of structures through which beam passed.
Disadvantages Uses radiation. Limited information regarding soft tissues Can't distinguish between soft tissues of similar consistency very well. Examples Barium enema Barium swallow Real-time visualization can see inside of gut, etc. Advantages Real-time visualization can see inside of gut, etc. Relatively inexpensive Disadvantages Can accumulate significant radiation exposures for patient and doctors Angiography Patient lies on a table .