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. Author manuscript; available in PMC: 2010 Jun 9.
Published in final edited form as: IEEE Trans Nucl Sci. 2009 Feb;56(1):147–155. doi: 10.1109/TNS.2008.2010319

Fig. 9.

Fig. 9

(Left) The Y-direction signal of an abdominal marker of subject 2 in Table I showing upward and downward trends. The downward trend is clearly seen from about 8 to 14 minutes, after which the trend shifts upward ending (at 15 min.) at around the same value as at the start of the acquisition. (Right) The axial center-of-mass of the segmented heart pixels in the same subject shows a negligible displacement between the start and end of the study. However, there is a downward trend between 10–14 minutes, which matches the downward trend seen at the left.