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. Author manuscript; available in PMC: 2014 Sep 7.
Published in final edited form as: J Nucl Med. 2014 Jan 16;55(2):287–293. doi: 10.2967/jnumed.113.123299

Fig. 3.

Fig. 3

Contrast recovery coefficient (CRC) calculation on the mini-Derenzo phantom. Each hot ROI contained 5 pixels of 0.95mm × 0.95mm for the 2.4 mm rods and 9 pixels for the 3.2 mm rods, and each cold ROI contained 4 pixels for the 2.4 mm rods and 5 pixels for the 3.2 mm rods. The CRC was calculated on Figs. 2B, C, E and F.