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. Author manuscript; available in PMC: 2010 May 1.
Published in final edited form as: IEEE Trans Med Imaging. 2009 Jan 13;28(5):739–751. doi: 10.1109/TMI.2008.2012034

Fig. 12.

Fig. 12

Contrast vs. noise trade-off curves for DIRECT reconstructions from data with typical clinical count levels (30M and 20M) and very low count levels (9M and 6M) for objects emulating average (27 cm) and heavy (35 cm) patient sizes, respectively (10-mm lesions, 300-ps TOF resolution, DIRECT reconstruction using RAMLA with resolution modeling, 40×3 views).