ArticleEuropean radiology2023
Dual-energy CT kidney stone characterization-can diagnostic accuracy be achieved at low radiation dose?
Article in European radiology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed.
- Effective Dose Estimations for the Swiss Survey on Medical Radiation Exposure of the Population in 2023.Health physics · 2026Article
- Accuracy and precision of automated kidney stone detection on CT.Abdominal radiology (New York) · 2026Article
- Not just two roads down: a multimodality radiologic-pathologic review of ureteral diseases.Abdominal radiology (New York) · 2026Review
- Dual-source CT for medical dissolution of uric acid stones: a retrospective derivation and prospective validation study.European journal of medical research · 2026Article
- Urological diagnostics based on kidney stone detection in CT imaging using YOLOv8 deep learning framework.Frontiers in medicine · 2026Article
- Improved display and detection of small renal stones using photon-counting detector CT compared to conventional energy-integrating detector CT.Abdominal radiology (New York) · 2025Article
- Comprehensive biomarker profiling reveals distinct molecular signatures across stone types: a large-scale cross-sectional study in Southern China.Frontiers in physiology · 2025Article
- [Imaging in nephroureterolithasis].Urologie (Heidelberg, Germany) · 2024Article
- Advancements in stone classification: unveiling the beauty of urolithiasis.World journal of urology · 2024Review
- Assessment of Hounsfield Units and Factors Associated with Fragmentation of Renal Stones by Extracorporeal Shock Wave Lithotripsy: A Computerized Tomography Study.Tomography (Ann Arbor, Mich.) · 2024Article
- Demonstrating the Efficacy of Dual Energy Computer Tomography with Gemstone Spectral Imaging Software to Determine Mixed and Single Composition ex vivo Urolithiasis.Research and reports in urology · 2024Article
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7 authors.
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Abstract
objectivesTo assess the accuracy of low-dose dual-energy computed tomography (DECT) to differentiate uric acid from non-uric acid kidney stones in two generations of dual-source DECT with stone composition analysis as the reference standard.
methodsPatients who received a low-dose unenhanced DECT for the detection or follow-up of urolithiasis and stone extraction with stone composition analysis between January 2020 and January 2022 were retrospectively included. Collected stones were characterized using X-ray diffraction. Size, volume, CT attenuation, and stone characterization were assessed using DECT post-processing software. Characterization as uric acid or non-uric acid stones was compared to stone composition analysis as the reference standard. Sensitivity, specificity, and accuracy of stone classification were computed. Dose length product (DLP) and effective dose served as radiation dose estimates.
resultsA total of 227 stones in 203 patients were analyzed. Stone composition analysis identified 15 uric acid and 212 non-uric acid stones. Mean size and volume were 4.7 mm × 2.8 mm and 114 mm
conclusionsLow-dose dual-source DECT demonstrated high accuracy to discriminate uric acid from non-uric acid stones even at small stone sizes. KEY POINTS: • Two hundred twenty-five of 227 stones were correctly classified as uric acid vs. non-uric acid stones by low-dose dual-energy CT with stone composition analysis as the reference standard. • Pooled sensitivity, specificity, and accuracy for stone characterization were 1.0, 0.93, and 0.99, respectively. • Low-dose dual-energy CT for stone characterization was feasible in the majority of small stones < 3 mm.
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