Urography in children: when should it be done? 1. Infection

Area of Science:

• Pediatric Radiology
• Urology
• Infectious Diseases

Background:

• Urinary tract infections (UTIs) are common in children.
• Identifying underlying causes is crucial for effective management.
• Radiological assessment plays a key role in diagnosing UTI complications.

Purpose of the Study:

• To outline the recommended radiologic evaluations for pediatric UTIs.
• To detail the specific roles of excretory urography and voiding cystourethrography.
• To emphasize the importance of radionuclide studies for reflux monitoring.

Main Methods:

• Excretory urography (EU) for detecting predisposing anomalies and previous pyelonephritis or reflux.
• Voiding cystourethrography (VCUG) for assessing protective barriers against renal infection.
• Radionuclide cystography (RNC) for sequential monitoring of vesicoureteral reflux (VUR).

Main Results:

• EU identifies anatomical abnormalities and serves as a baseline for future assessments.
• VCUG detects VUR and other structural abnormalities.
• RNC effectively tracks changes in VUR severity or resolution.

Conclusions:

• Comprehensive radiologic evaluation including EU and VCUG is essential for pediatric UTIs.
• VCUG is critical for identifying vesicoureteral reflux.
• Radionuclide methods are preferred for serial VUR assessment.