Ultrasound detection of vesicoureteral reflux in children

Gregor Novljan1, Tanja Kersnik Levart, Damjana Kljucevsek

  • 1Department of Pediatric Nephrology and Pediatric Radiology Unit (DK, AK), University Medical Center, Ljubljana, Slovenia. gregor.novljan@mf.uni-lj.si

Insights

Voiding urosonography is a safe and reliable ultrasound technique for detecting vesicoureteral reflux in children. It offers reduced radiation exposure compared to traditional methods, with indirect techniques showing promise.

Area of Science:

  • Pediatric Urology
  • Diagnostic Imaging
  • Medical Ultrasound

Background:

  • Urinary tract infections (UTIs) are common in children and can be linked to vesicoureteral reflux (VUR).
  • Current guidelines lack consensus on optimal investigation strategies after a child's first UTI.
  • Minimally invasive imaging with low radiation exposure is preferred for pediatric patients.

Purpose of the Study:

  • To evaluate various ultrasound techniques for detecting VUR in children.
  • To emphasize the role and clinical relevance of voiding urosonography (VUS).
  • To explore methods for VUR detection that avoid bladder catheterization.

Main Methods:

  • Review of current literature and internal study results on VUS.
  • Application of ultrasound techniques, including echo-enhancing agents, for improved VUR visualization.
  • Development of indirect VUS and ureteral jet Doppler waveform analysis to avoid intravesical contrast agents.

Main Results:

  • Echo-enhancing agents significantly improve ultrasound visualization of VUR.
  • Indirect VUS and ureteral jet Doppler analysis show potential for detecting VUR without bladder catheterization.
  • Sonomorphological features aid in VUR detection via ultrasound.

Conclusions:

  • Voiding urosonography is a safe and reliable method for detecting VUR in children.
  • VUS significantly reduces radiation exposure compared to conventional cystography methods.
  • Indirect VUS and ureteral jet Doppler analysis may serve as non-invasive alternatives to voiding cystography, particularly in children over three years old.
Abstract

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