Cystography after kidney transplantation.

45 voiding cystographies were performed in 40 patients with renal allografts: in 30 cases diluted Verografin SPOFA (CSSR) and in 15 cases Opacist E.R. BRACCO (Italy) were used as contrast medium. The purpose of the study was to assess the frequency of vesico-ureteral reflux into the autologous ureters, into the ureter and pelvicalyceal system of the graft and the frequency of morphological and functional changes of the urinary bladder including its contraction during micturition. In three patients with urinary leakage at the site of uretero-neocystotomy voiding cystography gave false-negative results.