Ces Urol 2001, 5(2):9-12 | DOI: 10.48095/cccu2001011

A new method of ureterolithiasis localization during ESWL

T. Hanák, D. Pacík

Urologická klinika FN Brno-Bohunice

A frequent part of urological management in blocking ureterolithiasis is introduction of an ureteral stent. Special ureteral stent has strong x-ray contrasting markers forming thin rings in 25mm distances on the full length of stent. The following ESWL allows an exact skiascopic localization of concretion in the horizontal and vertical planes. Minimal role plays the influence of unfavorable localization conditions like low contrast of concretion, flatulence, obesity and also summation of concretion shadow with skeletal parts. Particularly in the vertical location plane (oblique position of arm C) it is unnecessary to identify the solitary concretion, but only the closest high contrast sign. In the vertical location plane the sign position corresponds to the position of skiascopic unidentified concretion due to the almost horizontal course of ureter between two closest signs. The assumption of exact and safe location has been certified in 4 patients yet. All patients were stone free after ESWL procedure and after removal of undestroyed and unincrusted stent during 14 days (stone - free rate 100 %).

Keywords: Ureterolithiasis, Ureteral stent, ESWL

Published: March 1, 2001