Abstract
Purpose
To determine inter-scan, inter-reader and intra-reader variability of trabecular structure analysis using flat-panel volume computed tomography (fp-VCT) in cadaver knee specimens.
Methods
Five explanted knee specimens were imaged at three different time points using fp-VCT. Four parameters that quantify trabecular bone structure of the proximal tibia were measured by two observers at two different time points. Bland–Altman analysis was used to compute the inter-scan, inter-observer and intra-observer variability.
Results
Inter-scan variability was low, with a mean difference of 0% and a standard deviation less than 8.4% for each of the four parameters. The inter-observer and intra-observer variability was less than 2.8% ± 8.5%.
Conclusion
Fp-VCT is a method for assessing trabecular structure parameters with low inter-scan, inter-reader and intra-reader variability.
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Cheung, A.C., Bredella, M.A., Al Khalaf, M. et al. Reproducibility of trabecular structure analysis using flat-panel volume computed tomography. Skeletal Radiol 38, 1003–1008 (2009). https://doi.org/10.1007/s00256-009-0707-9
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DOI: https://doi.org/10.1007/s00256-009-0707-9