Publication:
Utility of opportunistic CT Hounsfield Units determined bone quality in chilean women

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dc.contributor.authorYurac, Ratko
dc.contributor.authorMardones, Paula
dc.contributor.authorNúñez, Marilaura
dc.contributor.authorBravo, Oscar
dc.contributor.authorQuinteros, Guísela
dc.contributor.authorAriztía, Antonio
dc.contributor.authorNazar, Catalina
dc.contributor.authorMarré, Andrea
dc.date.accessioned2026-08-06T16:04:54Z
dc.date.available2026-08-06T16:04:54Z
dc.date.issued2025
dc.description.abstractObjective: To describe the correlation between Hounsfield Units in opportunistic computed tomography (CT scan) and T-score measured by dual energy X-ray absorptiometry (DXA) in the Chilean population. Method: Female patients over 50 years old with CT scan and DXA performed within 6 months. Hounsfield units (HU) were measured by circular regions-of-interest placed on axial slice image of the L1 vertebral body in the CT scan. T-score was obtained through DXA scan in L1-L4 vertebrae. Results: 144 female patients were included with a mean age in years of 68.39 ± 8.75. A moderate correlation was found between T-score and HU (Pearson coefficient of 0.6, p < 0.001). The mean values of HU differ significantly between the groups of Osteoporosis (OP) (89.46 ± 20.20), Osteopenia (110.87 ± 30.74) and normal bone mineral density (154.53 ± 38.90) (p < 0.01). The area under curve for diagnostic capacity was 0.81 (95% CI 0.72-0.9). The HU thresholds for the diagnosis of OP were 101 (sensitivity 75%, specificity 75%). Conclusion: Opportunistic CT scan is a useful tool in Chilean population to perform a screening for OP.
dc.description.versionVersión Aceptada
dc.identifier.citationYurac-Barrientos R, Mardones González P, Núñez-Mardones M, Bravo-Olivares O, Quinteros-Rivas G, Ariztía-Fuenzalida A, Nazar-Meier C, Marré-Chadwick A. Utility of opportunistic CT Hounsfield Units determined bone quality in chilean women. Cir Cir. 2025;93(3):309-314. English. doi: 10.24875/CIRU.22000646.
dc.identifier.doihttps://doi.org/10.24875/CIRU.22000646
dc.identifier.urihttps://hdl.handle.net/11447/10966
dc.language.isoen
dc.subjectAbsorciometría de rayos X de energía dual
dc.subjectColumna
dc.subjectComputed tomograo scan
dc.subjectDXA
dc.subjectHounsfield Units
dc.subjectOsteoporosis
dc.subjectSpine
dc.subjectTomografía computarizada
dc.subjectUnidades Hounsfield
dc.titleUtility of opportunistic CT Hounsfield Units determined bone quality in chilean women
dc.typeArticle
dcterms.accessRightsAcceso Abierto
dcterms.sourceCirugía y cirujanos
dspace.entity.typePublication
relation.isAuthorOfPublication631830b2-9e94-4f76-bf44-70d266274dbc
relation.isAuthorOfPublication.latestForDiscovery631830b2-9e94-4f76-bf44-70d266274dbc

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