Calyx to parenchyma ratio in pelvi‐ureteric junction obstruction

Abstract

Hydronephrosis as measured by an estimate of pelvic volume is an insensitive marker of improvement after pyeloplasty. Reduced calyceal distension correlates well with other favourable prognostic indicators. Therefore, the C/P ratio may be an additional indicator of the appropriateness of surgical intervention, and should be the subject of further study.