Which study demonstrated vesicoureteral reflux in OPD7384?

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Vesicoureteral reflux is best demonstrated with a dynamic study that visualizes urine flow into the ureters while the bladder is being emptied. A voiding cystourethrogram does exactly this: a radiopaque contrast is placed into the bladder, and images are taken as the patient voids. If the bladder contractions push the contrast back up the ureters toward the kidneys, that upward movement is the reflux you’re looking for. This test not only confirms the presence of reflux but also grades its severity and shows where the reflux occurs, which is crucial for management decisions.

Other imaging options aren’t as suited for capturing reflux during voiding. An intravenous pyelogram mainly assesses the anatomy and excretory function of the kidneys after contrast is filtered and excreted, without focusing on the act of urination. MRI urography and CT urogram provide detailed anatomical images and can incidentally show reflux, but they are not designed for real-time demonstration of vesicoureteral reflux during micturition and involve higher costs or radiation exposure.