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Table 4 Lesion detection scoring table

From: Minimum lesion detectability as a measure of PET system performance

Score Definition
2 If the sphere was a lesion, would the observation of the sphere affect the course of treatment of the fictional subject
1 If the sphere was observable but could be similar to other noisy spots in the image and would not qualify as a lesion which would affect the course of the fictional patient’s treatment.
0 If the sphere could not be observed.