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. Author manuscript; available in PMC: 2020 Dec 1.
Published in final edited form as: Eur J Nucl Med Mol Imaging. 2020 May 15;47(13):2956–2967. doi: 10.1007/s00259-020-04840-9

Fig. 4.

Fig. 4

Test results from the multiple realizations of the phantom of Fig. 3. (a) Noise vs. contrast recovery averaged over 6 spheres (b) Noise vs. residual count error for the lung insert. The data points represent OS-EM iteration number.