[Patient radiation exposure during ureteroscopic stone extraction].
BACKGROUND
We determined the intraoperative patient radiation exposure during ureteroscopic extraction of ureteral or renal stones.


METHODS
The investigation was carried out in 215 patients who underwent ureteroscopy for ureteral or renal stone extraction. Radiation exposure was measured as dose-area product (DAP) within the X-ray beam. The effective abdominal dose was calculated using the specific conversion factor of 0.00323 mSv/µGy×m².


RESULTS
Depending on the stone location (i.e. ureter or kidney), the type of ureteroscopy (i.e. semirigid or flexible) and type of stone removal (i.e. simple stone extraction or intracorporeal laser lithotripsy), the intraoperative patient radiation exposure (effective dose ED) ranged from 0.67 mSv (DAP 221.9 µGy×m²) to 2.23 mSv (DAP 744.2 µGy×m²).


CONCLUSIONS
Patient radiation exposure during ureteroscopic stone extraction is comparable to patient radiation exposure using plain film urography or low-dose non-contrast-enhanced computed tomography for diagnosis of urolithiasis.
Klinik für Urologie und Kinderurologie, Klinikum Bad Hersfeld. gerhard.zoeller@klinikum-hef.de
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G
Zöller
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Virsik-Köpp
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C
Vowinkel
D000293:Adolescent; D000328:Adult; D000368:Aged; D001822:Body Burden; D005260:Female; D005858:Germany / Q000453:epidemiology; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D011829:Radiation Dosage; D015641:Radiography, Interventional / Q000706:statistics & numerical data*; D011874:Radiometry / Q000706:statistics & numerical data*; D012307:Risk Factors; D018666:Ureteroscopy / Q000706:statistics & numerical data*; D014545:Urinary Calculi / Q000175:diagnosis* / Q000453:epidemiology / Q000601:surgery*; D055815:Young Adult