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. Author manuscript; available in PMC: 2011 Apr 13.
Published in final edited form as: J Nucl Med. 2009 Jul 17;50(8):1307–1314. doi: 10.2967/jnumed.108.060079

FIGURE 7.

FIGURE 7

Contrast-recovery measurements obtained from 9 replicate experiments performed with Esser phantom (insert internal diameters, 8, 12, 16, and 25 mm). Images were acquired on Discovery RX in 2D mode and reconstructed with OSEM (2 iterations, 21 subsets; 5-mm postreconstruction gaussian filter). Measured FWHM for this scanner and reconstruction protocol was 7.89 mm from Figure 6 and Table 2. Solid line indicates contrast-recovery coefficients obtained from simulations that used known dimensions of phantom and 7.89-mm gaussian filter.