Radiology of ureter

Intravenous Urography: Technique and Interpretation

“…Aberrant papilla in a patient with a history of transitional cell carcinoma. Medial deviation of the ureter should be considered when the ureter overlies the ipsilateral lumbar pedicle (25,36,37). Oblique image helps confirm this urographic finding.…”

“…We obtain a KUB radiograph immediately following compression release (15 minutes after contrast material administration) and supplement this image with fluoroscopic spot images to ensure that the entire luminal surface of the ureters has been imaged (Fig 7) (6,24,25). We obtain a KUB radiograph immediately following compression release (15 minutes after contrast material administration) and supplement this image with fluoroscopic spot images to ensure that the entire luminal surface of the ureters has been imaged (Fig 7) (6,24,25).…”

“…At the release of compression, the bolus of contrast material-laden urine entering the ureters provides optimal visualization throughout their length (25). Segmental nonvisualization of the ureter due to peristalsis can be overcome with compression release, and the entire ureter, filled from the ureteropelvic junction to the ureterovesi-cal junction, may be identified on one or two images.…”

“…Note the rim of contrast material at the margin of the somewhat angular defect (arrow). Some ureteral devia- tions are characteristic (Fig 38) (25,31,36), whereas others, although they produce striking urographic images, represent normal variations (Fig 39). Note also the marked caliceal distortion, which is further proof that a mass (in this case, renal cell carcinoma) is present.…”

Normal Ureteral Diameter in Infancy and Childhood

“…Obviously, the ureter is best suited for evaluation of normal dimensions, due to the great variation in configuration and size of the pelvicalyceal system. Normal values of ureteral diameter in adults (12,25,29) and children (7,15) have been published. However, the results concerning children were gathered from autopsies and are therefore not directly applicable to radiologic examinations.…”