Simplifying radiological examinations. Can it really be done in urography?

The value of commonly used routine films obtained at excretory urography was assessed in 565 patients. For a high level of confidence following films are recommended: Initial zonographic cut over the kidneys. A-P film covering bladder, ureters and as much as possible of the kidneys. Immediate post contrast medium injection film. Plain film or zonographic (tomographic) cut over the kidneys 10 min. later. Immediate post compression film. (Possible) post void film. The shorter urograms suggested by other authors are probably giving such a low level of confidence that other examinations may be requested as supplements.