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. 2021 Nov 12;7(4):767–782. doi: 10.3390/tomography7040064

Figure 4.

Figure 4

(a) The sagittal position of the VOI, which includes two areas 5 mm above and below the central slice. (b) The axial position of the VOI. First, the vertebral body central axis line A (Horizontal positioning line) was drawn, and then, line B (Vertical positioning line) was drawn perpendicular to line A at 5 mm inside the intersection of line A and the anterior edge of the vertebral body. Using the intersection of lines A and B as the tangent point, a cylindrical VOI with a diameter of 15 mm was outlined. (c) 3D reconstructed VOI of micro-CT and micro-CT-like images.