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Pediatric Nephrology
Published in: Pediatric Nephrology 8/2003

01-08-2003 | Original Article

Vesicoureteral reflux: comparison between urosonography and radionuclide cystography

Authors: Giorgio Ascenti, Giovanni Zimbaro, Silvio Mazziotti, Roberto Chimenz, Sergio Baldari, Carmelo Fede

Published in: Pediatric Nephrology | Issue 8/2003

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Abstract

Our aim was to compare contrast-enhanced color Doppler voiding urosonography (VUS) and direct radionuclide voiding cystography (DRVC) to determine the usefulness of ultrasonography (US) in the detection and grading of vesicoureteral reflux (VUR). In this study, the two techniques were performed simultaneously on a group of 64 children referred for the evaluation of VUR. DRVC detected VUR in 54/128 ureterorenal units, and VUS confirmed reflux in 44 (81%). Only in two cases was the reflux not confirmed by DRVC (97% specificity). Ten units with minimal grade I VUR detected by DRVC were not identified by VUS. For identification of grade II and III reflux, sensitivity of VUS reached 100%. Ten units with grade I VUR at DRVC presented grade II at VUS. Eleven units with grade II VUR at DRVC presented grade III at VUS. In conclusion, contrast-enhanced VUS is a useful diagnostic tool for the detection of VUR in children. Our data suggest a higher diagnostic accuracy of urosonography compared to radionuclide cystography in the determination of the grade of VUR; this may have significant consequences on the management of young patients affected by VUR.
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Metadata
Title
Vesicoureteral reflux: comparison between urosonography and radionuclide cystography
Authors
Giorgio Ascenti
Giovanni Zimbaro
Silvio Mazziotti
Roberto Chimenz
Sergio Baldari
Carmelo Fede
Publication date
01-08-2003
Publisher
Springer-Verlag
Published in
Pediatric Nephrology / Issue 8/2003
Print ISSN: 0931-041X
Electronic ISSN: 1432-198X
DOI
https://doi.org/10.1007/s00467-003-1130-4

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