340 ORIGINAL ARTICLE Relationship between ultrasound criteria and voiding ultrasonography (VUS) in the evaluation of vesicoureteral refux (VUR) Sandra Vegar-Zubović 1 , Spomenka Kristić 1 , Aladin Čarovac 1 , Irmina Sefć-Pašić 1 , Amra Džananović 1 , Danka Miliić-Pokrajac 2 , Lincender Lidija 3 1 Clinic of Radiology, 2 Pediatric Clinic; Clinical Center of the University of Sarajevo, 3 Academy of Science and Arts of Bosnia and Herze- govina; Sarajevo, Bosnia and Herzegovina Corresponding author: Sandra Vegar-Zubović Clinic of Radiology, Clinical Center of the University of Sarajevo Bolnička 25, 71000 Sarajevo, Bosnia and Herzegovina Phone: + 387 61 202 880; Fax: + 387 33 297 811; E-mail: sandra.vegar@gmail.com Original submission: 20 February 2014; Revised submission: 06 May 2014; Accepted: 27 May 2014. Med Glas (Zenica) 2014; 11(2): ABSTRACT Aim To analyze the usefulness of fve ultrasound parameters (ure- teral dilatation, renal pelvis dilatation, renal parenchyma width reduction, calyceal dilatation, and urothelial reaction) in detecting vesicoureteral refux (VUR). Methods The study included 101 patients with diagnosed and the- rapeutically treated urinary infection. The ultrasound examination and voiding urosonography (VUS) were carried out according to a standard protocol. In the group of patients with proven VUR the presence of the indirect ecomorphological signs of VUR was evaluated. Results The referral diagnosis urinary tract infection was present at the admission in 53 patients, while the remaining 48 patients were admitted with the diagnosis of infectio tractus urinarii reci- divans. Pathological VUS was found in 53 patients. The ultraso- und parameter with the highest sensitivity, specifcity, and nega- tive predictive value (77.4%, 79.2%, and 76.0%, respectively) in detection of VUR was urethral dilatation, while the parameter with the highest positive predictive value (62.5%) in detection of VUR was urothelial reaction. Conclusion In case of ultrasound verifcation of ureteral dilatation or urothelial reaction, especially in if the urinary infection has pro- ved, it is necessary to exclude the existence of VUR. Key words: urinary tract ultrasound, ureteral dilatation, urothelial reaction