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Fig. 8 | EJNMMI Physics

Fig. 8

From: Implementation of cylindrical PET scanners with block detector geometry in STIR

Fig. 8

Images of the Derenzo phantom simulated inside the Scanner B reconstructed using OSEM algorithm with six subsets and 24 subiterations. a Cylindrical geometry without normalization, b block geometry without normalization, c cylindrical geometry with normalization, and d block geometry with normalization. A circular artifact is observed in images a and c. Values on image b show the sphere diameters in millimeter

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