Krenning score

Medical diagnostics
Purpose| grade uptake intensity of neuroendocrine tumors

The Krenning score[1] is used to grade the uptake intensity of neuroendocrine tumors on somatostatin receptor imaging such as octreotide scan.[further explanation needed] Typically, peptide receptor radionuclide therapy (PRRT) is considered when the Krenning score is greater than 2.

## Krenning Score

Grade 1: uptake < normal liver

Grade 2: uptake = normal liver

Grade 3: uptake > normal liver

Grade 4: uptake > spleen or kidneys

## References

1. ↑ Kwekkeboom, DJ; Krenning, EP (April 2002). "Somatostatin receptor imaging.". Seminars in Nuclear Medicine 32 (2): 84–91. doi:10.1053/snuc.2002.31022. PMID 11965603.

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