ArticleThe British journal of radiology2022
The effects of stone density on surgical outcomes of retrograde intrarenal stone surgery.
Article in The British journal of radiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 10 citations in OpenAlex.
- Clinical study of the postural drainage lithotripsy system for the treatment of residual fragments after retrograde intrarenal surgery.World journal of urology · 2025Trial
- Trial
- Metabolic Insights From Composition-Based Analysis of Kidney Stones: A Retrospective Study of 506 Patients.Cureus · 2026Article
- Predictive value of the S.T.O.N.E. score for stone-free rate in impacted ureteral stones.Urolithiasis · 2025Article
- Outcomes of retrograde intrarenal surgery in patients on anticoagulant or antiplatelet therapy: a multicenter matched case-control study by the RIRSearch Study Group.World journal of urology · 2025Article
- The role of preoperative ureteral diameter measurements in predicting difficult access during retrograde ıntrarenal surgery: a retrospective analysis of 234 patients.Urolithiasis · 2025Article
- Actively extracting kidney stones combined dusting technique can improve SFR of moderate-complexity kidney stones in fURL.International urology and nephrology · 2024Article
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Authors and funding
4 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveSeveral pre-operative parameters have been studied to estimate stone-free rate (SFR) following retrograde intrarenal surgery (RIRS) procedures. The objective of this study was to evaluate the effects of stone density on surgical outcomes of RIRS.
methodsThis retrospective study included 30 stone-free patients (Group SF) and 30 patients with residual fragments (Group RF). Patients' age and gender, laterality, non-contrast CT findings, including size and density of the kidney stones, infundibular pelvic angle (IPA), operational time, and post-operative pain were recorded and compared between the two groups. The stone density was measured by free hand region of interest (ROI) determination coincident with the stone borders and expressed as Hounsfield units (HUs).
resultsThe rate of single stones was significantly higher in Group SF compared to Group RF (
conclusionThis study revealed that stone density as measured as HU affects the treatment outcomes with RIRS procedure and the mean density is significantly higher in patients with residual stone fragments. ADVANCES IN KNOWLEDGE: Studies about the effects of HUs on stone-free rate are limited in the literature. Stone density affects the treatment outcomes with RIRS procedure and the mean density is significantly higher in patients with residual stone fragments.
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