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. 2012 Jan 18;39(2):777–787. doi: 10.1118/1.3676688

Table 4.

Average DOI difference (standard deviation in mm) of the calibrated depths between different DOI calibration methods for crystals at different scintillator array positions. The 1st column crystals are closest to the external source, then the 2nd row crystals, and so on.

Crystal column # 1 2 3 4 5 6 7 8
Collimated–flood 0.55 0.61 0.58 0.65 0.69 0.64 0.69 0.64
Collimated–internal 0.58 0.68 0.68 0.64 0.64 0.50 0.64 0.75
Flood–internal 0.22 0.31 0.68 0.71 0.62 0.45 0.48 0.29