Abstract.
The general aim of this work is to measure brain potassium (K) levels as a marker of intracellular water content and to test the hypothesis of whether edema in multiple sclerosis (MS) is associated with increased intracellular brain water. For that purpose, a system to measure K in brain is being developed. Our specific aim is to assess the potential contribution to the K photopeak from cranial K located outside the brain. For this, a simplified spherical phantom to represent the brain, a square box to represent the cranium, and a K point source to assess the contributions due to K outside the brain were used. It is estimated that only about 1–2% of the K photopeak might be attributable to K outside the brain.
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Wielopolski, L., Ramirez, L.M., Coyle, P. et al. Some aspects of measuring levels of potassium in the brain. Acta Diabetol 40 (Suppl 1), s73–s75 (2003). https://doi.org/10.1007/s00592-003-0031-0
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DOI: https://doi.org/10.1007/s00592-003-0031-0