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  • Title: Intrarenal Reflux: Diagnosis at Contrast-Enhanced Voiding Urosonography.
    Author: Colleran GC, Barnewolt CE, Chow JS, Paltiel HJ.
    Journal: J Ultrasound Med; 2016 Aug; 35(8):1811-9. PubMed ID: 27371375.
    Abstract:
    Vesicoureteral reflux (VUR) is a childhood condition that is usually diagnosed by fluoroscopic voiding cystourethrography (VCUG). Intrarenal reflux (IRR) of infected urine is believed to play an important role in the pathogenesis of reflux-associated pyelonephritis and subsequent parenchymal scarring and is traditionally depicted by fluoroscopic VCUG. This case series describes the phenomenon of IRR occurring in association with VUR in 4 children as depicted by contrast-enhanced voiding urosonography. The ability of contrast-enhanced voiding urosonography to show IRR when it occurs in conjunction with VUR compares favorably to that of fluoroscopic VCUG.
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