Krenning score

Krenning score
Purposegrade 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. 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.