MATEUS ROZALEM ARANHA

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LIM/44 - Laboratório de Ressonância Magnética em Neurorradiologia, Hospital das Clínicas, Faculdade de Medicina

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    Corticobasal Syndrome Variants: Is Functional Nuclear Imaging with FDG-PET or SPECT Pattern Capable of Predicting Clinical Features?
    (2018) PARMERA, Jacy; ARANHA, Mateus; NETO, Adalberto; BUCHPIGUEL, Carlos; BARBOSA, Egberto; BRUCKI, Sonia Dozzi
  • article 0 Citação(ões) na Scopus
    Brain glucose metabolism and gray matter volume in retired professional soccer players: a cross-sectional [F-18]FDG-PET/MRI study
    (2023) ARANHA, Mateus Rozalem; COUTINHO, Artur Martins; CARNEIRO, Camila de Godoi; PASTORELLO, Bruno Fraccini; STUDART-NETO, Adalberto; GUARIGLIA, Carla Cristina; TSUNEMI, Miriam Harumi; MOREIRA, Everton Luis Santos; IANOF, Jessica Natuline; ANGHINAH, Renato; NITRINI, Ricardo; CERRI, Giovanni Guido; FORTEA, Juan; BUCHPIGUEL, Carlos Alberto; LEITE, Claudia Costa
    Background Professional soccer athletes are exposed to repetitive head impacts and are at risk of developing chronic traumatic encephalopathy. Objective To evaluate regional brain glucose metabolism (rBGM) and gray matter (GM) volume in retired soccer players (RSPs). Methods Male RSPs and age and sex-matched controls prospectively enrolled between 2017 and 2019 underwent neurological and neuropsychological evaluations, brain MRI and [F-18]FDG-PET in a 3.0-Tesla PET/MRI scanner. Visual analysis was performed by a blinded neuroradiologist and a blinded nuclear physician. Regional brain glucose metabolism and GM volume were assessed using SPM8 software. Groups were compared using appropriate statistical tests available at SPM8 and R. Results Nineteen RSPs (median [IQR]: 62 [50-64.5] years old) and 20 controls (60 [48-73] years old) were included. Retired soccer players performed worse on mini-mental state examination, digit span, clock drawing, phonemic and semantic verbal fluency tests, and had reduced rBGM in the left temporal pole (pFDR = 0.008) and the anterior left middle temporal gyrus (pFDR = 0.043). Semantic verbal fluency correlated with rBGM in the right hippocampus, left temporal pole, and posterior left middle temporal gyrus (p <= 0.042). Gray matter volume reduction was observed in similar anatomic regions but was less extensive and did not survive correction for multiple comparisons (pFDR >= 0.085). Individual [18F]FDG-PET visual analysis revealed seven RSPs with overt hypometabolism in the medial and lateral temporal lobes, frontal lobes, and temporoparietal regions. Retired soccer players had a higher prevalence of septum pellucidum abnormalities on MRI. Conclusion Retired soccer players had reduced rBGM and GM volume in the temporal lobes and septum pellucidum abnormalities, findings possibly related to repetitive head impacts.