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. 2020 Mar 3;8:159. doi: 10.3389/fbioe.2020.00159

FIGURE 1.

FIGURE 1

Determination of vertebral body height (HTotal) from radiographic images in two steps: (1) Extracting the distance between the centroids of the upper and lower intervertebral disc spaces in the sagittal plane (HSagittal), and (2) correct it for scoliosis-dependent projection errors using the vertebral tilt angle measured in the frontal plane.