Childhood acute pyelonephritis: comparison of power Doppler sonography and Tc-DMSA scintigraphy.

Background: Tc 99m DMSA scintigraphy is regarded as the gold standard for the detection and localization of acute pyelonephritis (APN) in children. Power Doppler sonography (PD US) is a radiation-free and cost-effective technique that could be useful in the diagnosis of APN in children.

Objective: To compare the predictive value of PD US with DMSA scintigraphy in the diagnosis of APN in children.