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Fig. 3 | EJNMMI Research

Fig. 3

From: 223Ra-dichloride therapy of bone metastasis: optimization of SPECT images for quantification

Fig. 3

(a) Number of measured counts in the hot spheres, (b) sensitivity, (c) number of counts measured in the background and (d) signal-to-noise ratio versus the sphere volume of the NEMA phantom. In each panel, we employed a 30 s/projection acquisition duration, and we also inspected the impact of using images obtained using single energy windows and images obtained by adding the images of different energy windows

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