Article Figures & Data
Figures
- Fig. 1
Three-dimensional lumbar vertebrae models.
- Fig. 2
(A) Unregistered segmentation point cloud models in red and blue. (B) Two models after registration. (C) Vertebra disarticulated from adjacent vertebrae and devoid of all soft tissue. (D) Three-dimensional surface-rendered model produced from the CT scan of the vertebra depicted in C. (E) Point cloud model of D registered with the corresponding operator A1 model.
- Fig. 3
The diagonal-lined bars show the maximum RMS values for the precision comparisons of the vertebral models, and the solid bars show the maximum RMS values for the accuracy comparisons of the vertebral models.
- Fig. 4
(A) Distance map from blue model to red model. (B) Registered point cloud models of 2 coupled sessions. (C) Distance map from red model to blue model. For the distance maps, the bar on the right shows how the colors correspond to distances.
Tables
Accuracy Operator A Operator B RMS (mm) 0.39 0.36 Mean (mm) 0.37 0.35 SD (mm) 0.22 0.20 95th percentile (mm) 0.75 0.64 99th percentile (mm) 1.22 1.10 Intrauser precision Interuser precision: operators A1 and B1 Operator A Operator B RMS (mm) 0.32 0.33 0.35 Mean (mm) 0.31 0.32 0.34 SD (mm) 0.16 0.18 0.21 95th percentile (mm) 0.56 0.58 0.65 99th percentile (mm) 0.78 0.88 0.96
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