ArticleSkeletal radiology2026
Diagnostic accuracy of dual-layer spectral CT for osteolytic vertebral metastases.
Article in Skeletal radiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectivesTo evaluate whether dual-layer spectral computed tomography, compared with conventional CT, improves diagnostic accuracy for osteolytic vertebral metastases. Furthermore, to investigate the influence of dual-layer CT on the subjective visibility of metastases. MATERIALS AND
methodsIn this single-center retrospective study, consecutive patients with an untreated primary tumor who underwent dual-layer CT and either MRI or PET-CT as reference standard within 14 days were included. Two independent observers, blinded to the reference, performed two scorings. First, the conventional CT was scored and the results were recorded. Subsequently, Calcium suppression, monoenergetic (monoE40 and monoE200), and Z-effective reconstructions were added. Subjective visibility was compared to conventional CT using a 5-point Likert scale. Diagnostic accuracy measures were calculated with 95% confidence intervals. Sensitivity and specificity were compared using the McNemar's test.
resultsFourteen patients (63 ± 8 years; 64.3% female) and 189 vertebrae were included, with 46 vertebrae showing 58 metastases with a mean diameter of 18 mm (range 5-53 mm). For conventional CT, the sensitivity, specificity, and diagnostic accuracy for observer A and B were, respectively, 57% and 57%, 96% and 90%, 85% and 81%. The diagnostic performance did not improve when using the dual-layer CT reconstructions in addition to conventional CT (p ≥ 0.13). MonoE40 improved the subjective visibility of metastases. Interobserver agreement was moderate for conventional CT (ĸ:0.48), and dual-layer CT reconstructions (ĸ:0.41-0.51).
conclusionDual-layer CT reconstructions did not improve diagnostic accuracy for osteolytic vertebral metastases compared with conventional CT, although subjective visibility was improved on low monoenergetic reconstructions.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.