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. Author manuscript; available in PMC: 2019 Mar 1.
Published in final edited form as: Med Phys. 2018 Jan 24;45(3):1050–1058. doi: 10.1002/mp.12747

Figure 1.

Figure 1

Diagram of ‘unfolding’ method. A first approximation is created by replicating the aliased portions of the image. Each enhancing voxel (P) is copied to the possible locations it could have originated from (P1 and P2). The unfolded image is compared to later reference images acquired with a larger or fully-sampled FOV. If only one of the potential locations is enhanced (‘on’) in the later images, the voxel is copied to that location and its alias is zeroed out; if both locations are ‘on’, the voxel is copied to both locations.