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. Author manuscript; available in PMC: 2016 May 1.
Published in final edited form as: J Comput Assist Tomogr. 2015 May-Jun;39(3):373–382. doi: 10.1097/RCT.0000000000000212

FIGURE 1.

FIGURE 1

Schematic of subsampling and shifting (not to scale)
Top row: Reference dataset (SI0.5). 0.5s sampling interval in Phase 1, combined with 8 anatomically registered Phase 2 images. T1, pre-enhancement set-point; T2, Post-enhancement set-point; T3, last second phase set-point.
Second row: Subsampled dataset, T1=t0. Orange block, baseline data-points added to ensure comparability of baseline values across all sampling intervals.
Third row: Subsampled dataset. Sampling interval same as second row, but T1=shifted forward.
Bottom row: Subsampled dataset. Sampling interval same as second row, but T1=shifted backward