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. Author manuscript; available in PMC: 2021 Dec 29.
Published in final edited form as: IEEE Trans Med Imaging. 2021 Nov 30;40(12):3652–3662. doi: 10.1109/TMI.2021.3094660

Fig. 2.

Fig. 2.

Population evaluation of emphysema using PDCM. (a) Illustration of superior (S), inferior (I), medial (M), lateral (L), posterior (P) and anterior (A) positions, and PDCM-based intensity projections on a sample right lung. (b) Average intensity (in HU) on PDCM-based angular and radial projections for MESA-COPD subjects with no emphysema (N = 205); (c) Average relative intensity differences, with respect to (b), on PDCM-based projections for MESA-COPD subjects with CLE-, PLE- and PSE-predominant emphysema (N = 37, 12 and 10 respectively).