MATEUS ROZALEM ARANHA
Projetos de Pesquisa
Unidades Organizacionais
LIM/44 - Laboratório de Ressonância Magnética em Neurorradiologia, Hospital das Clínicas, Faculdade de Medicina
4 resultados
Resultados de Busca
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conferenceObject Deciphering Corticobasal Syndrome: are clinical features and FDG-PET imaging capable of predicting amiloyd status?(2019) PARMERA, J.; COUTINHO, A.; NETO, A.; ARANHA, M.; ONO, C.; BUCHPIGUEL, C.; NITRINI, R.; BARBOSA, E.; BRUCKI, S.conferenceObject FDG-PET degeneration patterns predict amyloid deposition in Corticobasal Syndrome(2020) PARMERA, J.; COUTINHO, A.; NETO, A.; ONO, C.; ARANHA, M.; BUCHPIGUEL, C.; NITRINI, R.; BARBOSA, E.; BRUCKI, S.- FDG-PET Patterns Predict Amyloid Deposition and Clinical Profile in Corticobasal Syndrome(2021) PARMERA, Jacy Bezerra; COUTINHO, Artur Martins; ARANHA, Mateus Rozalem; STUDART-NETO, Adalberto; CARNEIRO, Camila de Godoi; ALMEIDA, Isabel Junqueira de; SOLLA, Davi J. Fontoura; ONO, Carla Rachel; BARBOSA, Egberto Reis; NITRINI, Ricardo; BUCHPIGUEL, Carlos Alberto; BRUCKI, Sonia Maria DozziBackground Corticobasal syndrome (CBS) is an atypical parkinsonian syndrome related to multiple underlying pathologies. Objective To investigate if individual brain [F-18]fluorodeoxyglucose-positron emission tomography (FDG-PET) patterns could distinguish CBS due to Alzheimer's disease (AD) from other pathologies based on [C-11]Pittsburgh Compound-B (PIB)-PET. Methods Forty-five patients with probable CBS were prospectively evaluated regarding cognitive and movement disorders profile. They underwent FDG-PET and were distributed into groups: likely related to AD (CBS FDG-AD) or likely non-AD (CBS FDG-nonAD) pathology. Thirty patients underwent PIB-PET on a hybrid PET-magnetic resonance imaging equipment to assess their amyloid status. FDG and PIB-PET images were classified individually based on visual and semi-quantitative analysis, blinded to each other. Quantitative group analyses were also performed. Results CBS FDG-AD group demonstrated worse cognitive performances, mostly concerning attention, memory, visuospatial domains, and displayed more myoclonus and hallucinations. The non-AD metabolic group presented more often limb dystonia, ocular motor dysfunction, motor perseveration, and dysarthria. All patients classified as CBS FDG-AD tested positive at PIB-PET compared to 3 of 20 in the non-AD group. The individual FDG-PET classification demonstrated 76.92% of sensitivity, 100% of specificity and positive predictive value and 88.5% of balanced accuracy to detect positive PIB-PET scans. Individuals with positive and negative PIB-PET showed hypometabolism in posterior temporoparietal areas and in thalamus and brainstem, respectively, mainly contralateral to most affected side, disclosing possible metabolic signatures of CBS variants. Conclusion FDG-PET was useful to predict AD and non-AD CBS variants depicting their specific degeneration patterns, different clinical features, and brain amyloid deposition. (c) 2020 International Parkinson and Movement Disorder Society
conferenceObject 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