Article Figures & Data
Figures
- Figure 1
Images depicting the data collection process, including the conversion of computed tomography (CT) images to engineering solid models. The 2-dimensional images are segmented from a series of CT images to define volumes. Each vertebra was divided into 7 regions followed by further segmentation of cancellous and cortical bone within each anatomic volume. Cortical and cancellous bone were separated by a filter algorithm provided by the segmentation software.
- Figure 2
Scatter plots demonstrating the relationship between dual-energy x-ray absorptiometry T scores and bone mineral density of cortical and cancellous bone for each of the 7 anatomical regions of the lumbar spine.
Tables
Absolute Value of the Correlation Coefficient Interpretation 0.00–0.10 Negligible correlation 0.10–0.39 Weak correlation 0.40–0.69 Moderate correlation 0.70–0.89 Strong correlation 0.90–1.00 Very strong correlation - Table 2
Pearson correlation coefficients demonstrating the relationship between dual-energy x-ray absorptiometry T scores and the BMD of cortical and cancellous bone for each of the 7 anatomical regions of the lumbar spine.
Vertebral Region Cortical BMD P Value Cancellous BMD P Value Inferior articular process 0.55 0.009 0.26 0.115 Lamina 0.55 0.009 0.29 0.072 Pedicle 0.74 0.001 0.57 0.008 Superior articular process 0.56 0.008 0.36 0.048 Spinous process 0.63 0.004 0.57 0.007 Transverse process 0.16 0.224 0.40 0.029 Vertebral body 0.43 0.030 0.82 0.000 Abbreviation: BMD, bone mineral density.
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