Urology & Nephrology Research Center, Hamadan University of medical sciences, Hamadan, Iran
Department of Urology, Kurdistan University of Medical Sciences, Kurdistan, Iran
Urol J. 2021 Jan 26;18(3):271-276. doi: 10.22037/uj.v16i7.5200.
Due to high prevalence of urolithiasis, endourologic interventions have increased for the treatment of patients with urinary stones. During fluoroscopy-guided percutaneous nephrolithotomy (PCNL), the surgeon and the patient are exposed to X-ray and its harmful effects. This study aimed to assess the reduction of the radiation dose received by surgeons and patients after using a new shielding method.
In this study, the dose of radiation exposure by the surgeon and patient during PCNL under fluoroscopic procedure with conventional shielding methods was compared to a new shielding method designed by the researcher. For this purpose, shields and lead cones with a thickness of 0.5 mm were used. Also, to evaluate the dose of radiation received by surgeons and patients in different parts of the body, thermoluminescent dosimeters (TLD) were used.
By using the new shielding method, a 37 ± 2% reduction was found in the dose exposure as compared to the conventional shielding method. The maximum reduction in radiation dose was specified to the surgeon's hands, while the lowest reduction in radiation dose was related to the surgeon's thyroid gland. The maximum and minimum reductions in radiation exposure for patients were specified to patients' feet and chest respectively.
There is a significant difference between the total dose received by the surgeons and the patients following the use of the new shielding method and the standard shielding method. The new shielding method can reduce 37 ± 2% of the x-ray received by the patient and the surgeon during fluoroscopy-guided PCNL.
由于尿路结石的高发率，腔内泌尿外科干预措施已增加，以治疗尿路结石患者。在透视引导下经皮肾镜取石术（PCNL）期间，外科医生和患者都会受到 X 射线及其有害影响。本研究旨在评估使用新屏蔽方法后外科医生和患者所接受的辐射剂量减少情况。
在这项研究中，通过比较研究人员设计的新屏蔽方法与传统屏蔽方法，比较了透视程序下 PCNL 过程中外科医生和患者所接受的辐射暴露剂量。为此，使用了 0.5 毫米厚的屏蔽罩和铅锥。此外，为了评估外科医生和患者身体不同部位所接受的辐射剂量，使用了热释光剂量计（TLD）。
与传统屏蔽方法相比，使用新屏蔽方法可使暴露剂量减少 37 ± 2%。辐射剂量的最大减少量是外科医生的手部，而辐射剂量的最低减少量与外科医生的甲状腺有关。患者的最大和最小辐射暴露减少量分别指定为患者的脚部和胸部。
使用新屏蔽方法和标准屏蔽方法后，外科医生和患者所接受的总剂量有显著差异。新屏蔽方法可减少透视引导下 PCNL 过程中患者和外科医生所接受的 X 射线的 37 ± 2%。
