Bilgisayarlı tomografi ve floroskopi kılavuzluğunda perkütan nefrostomi işlemlerindeki radyasyon maruziyeti için bir retrospektif kıyaslama

Abstract

Objective: The study aimed to compare the radiation doses absorbed by the patient in first-time percutaneous nephrostomy under CT and nephrostomy replacement under fluoroscopy. 
 Materials and Methods: 89 hydronephrotic patients referred for nephrostomy were included in this retrospective study. 75 of these patients had the nephrostomy for the first-time under CT-guidance. 14 patients had the nephrostomy replacement operation under fluoroscopy guidance. Absorbed radiation doses were compared between these operations. 
 Results: The groups showed no statistically significant differences in means of demography (age, sex, and pathology) and operational parameters (intervention side and complications) except the absorbed radiation dose. The median effective radiation doses were 1.18 mSv and 1.68 mSv for CT and fluoroscopy, respectively. The first-time nephrostomy operations under CT were completed with radiation doses significantly lower than those in nephrostomy replacement under fluoroscopy (p < 0.001). 
 Conclusion: Ultra-low-dose and fast-acting CT-guided nephrostomy is a safe, user-friendly procedure that leads patients to less radiation exposure than expected. CT guidance is a better alternative than fluoroscopy in percutaneous nephrostomy placement with a low complication rate in patients with different indications and a wide age interval.