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. Author manuscript; available in PMC: 2010 Oct 1.
Published in final edited form as: J Nucl Med. 2009 Sep 16;50(10):1666–1675. doi: 10.2967/jnumed.109.064345

FIGURE 2.

FIGURE 2

Uniform source image showing ROIs used to calculate percentage background variability. Source extends beyond detector at bottom of this figure.