Presentation
Persistent microscopic hematuria.
Patient Data
Both kidneys concentrate and excrete normally.
Normal appearances of the collecting systems, ureters and bladder.
Normal appearances of the solid organs of the upper abdomen.
Case Discussion
The split bolus technique is a CT imaging investigation used in patients with hematuria aiming to put together, in a single image acquisition, both the nephrographic and renal excretory phases and thus reducing the radiation dose of the study. It is a CT protocol adopted for some institutions for assessing a patient with hematuria.
This is a normal example of the whole renal tract illustrated. Often the ureters will not both be filled in their entirety with contrast.