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Abstract #3221

Paramagnetic ions and R2 and R2*map: A preliminary postmortem brain study

Jeam Haroldo Oliveira Barbosa 1 , Antnio Carlos Santos 2 , Jos Eymard Homem Pittella 2 , Luciano Neder Serafini 2 , Oswaldo Baffa Filho 1 , and Carlos Ernesto Garrido Salmon 1

1 FFCLRP- D.Physics, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil, 2 FMRP, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil

Quantification paramagnetic ions in postmortem brain using Electron Spin Resonance (ESR) and its correlation with R2 and R2* maps. Fe+3 and Cu+2 paramagnetic ions are found in regions with considerable increased R2 and R2* values. The determination of the influence from paramagnetic ions can help understanding the origins of changed R2 and R2* values in the basal ganglia.

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