Nucl Med Mol Imaging.
2020 Apr;54(2):120-122. 10.1007/s13139-020-00637-8.
Renal Potassium Excretion Visualized on 82Rubidium PET/CT
- Jochumsen M
1,2 - Tolbod LP1,2
- Borre M2,3
- Frøkiær J1,2
- Bouchelouche K1,2
- Sörensen J1,2
- Affiliations
-
- 1Department of Nuclear Medicine & PET Centre, Aarhus University Hospital, Palle Juul-Jensens Boulevard 165, 8200 Aarhus N, Denmark
- 2Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
- 3Department of Urology, Aarhus University Hospital, Aarhus, Denmark
- KMID: 2500066
- DOI: http://doi.org/10.1007/s13139-020-00637-8
Abstract
- The positron emission tomography (PET) flow tracer 82Rubidium is a known potassium analogue. During our studies of tumor blood flow in prostate cancer, we found that approximately 10% of the patients had high urinary 82Rubidium activity. In roughly half of these patients, the increased renal rubidium/potassium excretion was either causing hypokalemia or explained by Thiazide treatment. In the other half, there was no obvious explanation or clinical consequence of the renal rubidium/potassium excretion. This is the first time enhanced renal potassium excretion is visualized on 82Rubidium PET/CT.
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