ArticleJBMR plus2025
High-resolution peripheral quantitative computed tomography reliability and accuracy of bone density and morphology properties in children.
Article in JBMR plus, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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9 authors.
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Abstract
Volumetric bone density, microarchitecture, and strength measures using HR-pQCT are valuable measures of bone health in pediatrics. Our cross-sectional study evaluated bone measure reproducibility in pediatric participants using repeat HR-pQCT (XtremeCT II, Scanco Medical) scans of non-dominant distal tibia and radius of 30 healthy children and adolescents (7-17 yr, 47% female) by 2 technicians. Additionally, we examined HR-pQCT and micro-CT of 26 cadaveric distal tibia specimens to evaluate agreement between the modalities. All HR-pQCT scans were analyzed using manufacturer-provided software (Image Processing Language, Scanco Medical) and a fully automated, previously validated, in-house algorithm, offering measures of bone microstructure (eg, trabecular plate-rod distribution, transverse trabeculae, trabecular bone strength) currently unavailable in the manufacturer-provided software. Root-mean-squared percent coefficient of variation (RMS-%CV) assessed precision and least significant change. Intraclass correlation coefficients (ICCs) using absolute-agreement, 2-way random-effects models assessed reliability. Pearson's correlation coefficients and ICC assessed linear relationships and agreements between HR-pQCT and micro-CT, respectively. In children and adolescents, RMS-%CV of HR-pQCT-derived trabecular bone measures at distal tibia and radius ranged from 0.8-4.4 to 0.8-6.0, respectively. Most cortical bone results were in a similar range. Both computational algorithms showed ICC > 0.90. RMS-%CV and least significant change values were lower for tibia than radius. ICCs were lower for cortical than trabecular outcomes. Most cadaveric results showed ICC > 0.83, other than trabecular bone thickness and modulus (ICC = 0.7). Pearson's
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