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Related Experiment Video

Updated: May 17, 2026

Technical Modification of the Terminal Ureter During Total Transperitoneal Laparoscopic Nephroureterectomy for Upper Urinary Tract Urothelial Carcinoma

Technical Modification of the Terminal Ureter During Total Transperitoneal Laparoscopic Nephroureterectomy for Upper Urinary Tract Urothelial Carcinoma

Published on: November 22, 2019

[Patient radiation exposure during ureteroscopic stone extraction].

G Zöller¹, P Virsik-Köpp, C Vowinkel

¹Klinik für Urologie und Kinderurologie, Klinikum Bad Hersfeld. gerhard.zoeller@klinikum-hef.de

Der Urologe. Ausg. A

|October 12, 2012

Summary

Intraoperative radiation exposure during ureteroscopic stone extraction is minimal, with effective doses ranging from 0.67 to 2.23 mSv. This dose is comparable to diagnostic imaging like plain film urography or low-dose CT scans.

Related Experiment Videos

Last Updated: May 17, 2026

Technical Modification of the Terminal Ureter During Total Transperitoneal Laparoscopic Nephroureterectomy for Upper Urinary Tract Urothelial Carcinoma

Technical Modification of the Terminal Ureter During Total Transperitoneal Laparoscopic Nephroureterectomy for Upper Urinary Tract Urothelial Carcinoma

Published on: November 22, 2019

Area of Science:

Urology
Medical Imaging
Radiation Safety

Background:

Ureteroscopic stone extraction is a common procedure for treating ureteral and renal stones.
Assessing intraoperative patient radiation exposure is crucial for safety and dose optimization.

Purpose of the Study:

To determine the intraoperative patient radiation exposure during ureteroscopic extraction of ureteral or renal stones.
To quantify the effective dose (ED) received by patients undergoing ureteroscopy.

Main Methods:

A study involving 215 patients undergoing ureteroscopy for stone extraction.
Radiation exposure measured as dose-area product (DAP) and converted to effective abdominal dose (ED) using a conversion factor of 0.00323 mSv/µGy×m².

Main Results:

Intraoperative patient radiation exposure (effective dose ED) varied from 0.67 mSv (DAP 221.9 µGy×m²) to 2.23 mSv (DAP 744.2 µGy×m²).
Exposure levels depended on stone location, ureteroscopy type (semirigid/flexible), and stone removal method (extraction/laser lithotripsy).

Conclusions:

Patient radiation exposure during ureteroscopic stone extraction is comparable to that of plain film urography.
The radiation dose is also similar to low-dose non-contrast-enhanced computed tomography used for urolithiasis diagnosis.