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. Author manuscript; available in PMC: 2011 Jun 6.
Published in final edited form as: Eur J Nucl Med Mol Imaging. 2010 Apr 11;37(9):1710–1721. doi: 10.1007/s00259-010-1441-1

Figure 1.

Figure 1

A combined energy spectrum for 99mTc and 201Tl is plotted together with the energy windows selected for the dual radionuclide acquisition (N1-N6). These correspond to photopeaks for the two radionuclides (N1, N3, N5) and energy windows that estimate scatter and cross-talk (N2, N4, N6). Note that the algorithm can accommodate overlapping windows (e.g. N1, N2).