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Table 6 Positron Emission Tomography Response Criteria in Solid Tumors (PERCIST)

From: Imaging biomarkers for evaluating tumor response: RECIST and beyond

Response

Criteria

CR

• Disappearance of all metabolically active tumor

PR

• > 30 % decrease in SUL peak (minimum 0.8 unit decrease) in lesion with greatest uptake (not necessarily the same lesion)

PD

• > 30 % increase in SUL peak (minimum 0.8 unit increase)

• > 75 % increase in total lesion glycolysis

• New lesions

SD

• Does not meet above criteria

  1. CR complete metabolic response, PD progressive metabolic disease, PR partial metabolic response, SD stable metabolic disease, SUL standardized uptake value using lean body mass