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EJNMMI Physics
Fig. 11 | EJNMMI Physics

Fig. 11

From: Validation of the physiological background correction method for the suppression of the spill-in effect near highly radioactive regions in positron emission tomography

Fig. 11

The normalised mean activities within the dilated shells surrounding the NEMA bottle obtained at three full iterations with a no post-filter and b 4-mm Gaussian post-filter. This demonstrates how spill-in activity from the hot bottle to the surrounding shells reduces as we move farther away from the bottle. The voxel activities were normalised with the actual activity in the spheres

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