ArticleKorean journal of urology2014
Pilot study of low-dose nonenhanced computed tomography with iterative reconstruction for diagnosis of urinary stones.
Article in Korean journal of urology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 18 citations in OpenAlex.
- Low-Dose Unenhanced Computed Tomography with Iterative Reconstruction for Diagnosis of Ureter Stones.Yonsei medical journal · 2018Trial
- Role of Stone Heterogeneity Index in Determining Success of Shock Wave Lithotripsy in Urinary Calculi.Journal of clinical and translational research · 2021Article
- Increased urinary bladder volume improves the detectability of urinary stones at the ureterovesical junction in non-enhanced computed tomography (NECT).European radiology · 2019Observational
- Low-dose CT with adaptive statistical iterative reconstruction for evaluation of urinary stone.Oncotarget · 2018Article
- Stone heterogeneity index on single-energy noncontrast computed tomography can be a positive predictor of urinary stone composition.PloS one · 2018Article
- Stone heterogeneity index as the standard deviation of Hounsfield units: A novel predictor for shock-wave lithotripsy outcomes in ureter calculi.Scientific reports · 2016Article
- Distribution of ureteral stones and factors affecting their location and expulsion in patients with renal colic.Korean journal of urology · 2015Article
- Usefulness of Nonenhanced Computed Tomography for Diagnosing Urolithiasis without Pyuria in the Emergency Department.BioMed research international · 2015Article
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7 authors at 2 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
purposeTo evaluate the efficacy of low-dose computed tomography (LDCT) for detecting urinary stones with the use of an iterative reconstruction technique for reducing radiation dose and image noise. MATERIALS AND
methodsA total of 101 stones from 69 patients who underwent both conventional nonenhanced computed tomography (CCT) and LDCT were analyzed. Interpretations were made of the two scans according to stone characteristics (size, volume, location, Hounsfield unit [HU], and skin-to-stone distance [SSD]) and radiation dose by dose-length product (DLP), effective dose (ED), and image noise. Diagnostic performance for detecting urinary stones was assessed by statistical evaluation.
resultsNo statistical differences were found in stone characteristics between the two scans. The average DLP and ED were 384.60 ± 132.15 mGy and 5.77 ± 1.98 mSv in CCT and 90.08 ± 31.80 mGy and 1.34 ± 0.48 mSv in LDCT, respectively. The dose reduction rate of LDCT was nearly 77% for both DLP and ED (p<0.01). The mean objective noise (standard deviation) from three different areas was 23.0 ± 2.5 in CCT and 29.2 ± 3.1 in LDCT with a significant difference (p<0.05); the slight increase was 21.2%. For stones located throughout the kidney and ureter, the sensitivity and specificity of LDCT remained 96.0% and 100%, with positive and negative predictive values of 100% and 96.2%, respectively.
conclusionsLDCT showed significant radiation reduction while maintaining high image quality. It is an attractive option in the diagnosis of urinary stones.
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