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. Author manuscript; available in PMC: 2009 Mar 1.
Published in final edited form as: Acad Radiol. 2008 Mar;15(3):334–341. doi: 10.1016/j.acra.2007.10.005

Figure 2.

Figure 2

The segmentation process is rigorously designed to minimize reader subjectivity. One or several slices in each orthogonal plane are selected to use as the skeleton for our segmentation volume (A, B). Next a wrap filter is applied (C, D) using an algorithm based on scattered data interpolation with radial basis functions. The volume is trimmed using a gradient image (E, F). Finally, a morphological 3D dilation filter is applied (G, H). Images in the bottom row are 3D renderings of 2D segmentations in the top row.