Avaliação de assimetrias cerebrais funcionais por SPECT cerebral e termometria timpânica

AUTOR(ES)
DATA DE PUBLICAÇÃO

2008

RESUMO

The objective of this study was to verify the possibility of using tympanic temperature (TT) as an indicator of asymmetric cerebral activity in human patients. To achieve this objective the TT was measured in 32 patients (12 male, 20 female, aged 47.34 + 22.96) with a clinical diagnostic hipothesis of neuropsychiatric disorders who were referred to a Nuclear Medicine Service to undergo cerebral SPECT (single photon emission computed tomography). SPECT results were compared to the TT variability in each pacient. Reference parameters were achieved by measuring the temperature of the tympanic membrane of 47 normal volunteers (20 male, 27 female, aged 39.38 + 12.57) and calculating the TT differences between the right and left ear. Afterwards, these normalized difference values were compared to the difference in TT values and laterality observed in the patients cerebral SPECTs. The results have shown that the difference in TT values in patients with clinical diagnostic hipothesis neuropsychiatric disorders seems not to correlate with the cerebral SPECT findings, which does not allow us to demonstrate the utility of Infrared tympanic termometry as a reliable, readily avaliable and non-invasive method to measure asymmetric cerebral activity in clinical practice. Further estudies, with larger number of patients and the use of other techniques such as functional nuclear magnetic ressonance imaging, will be needed to ascertain whether infrared tympanic thermometry may be routinely used to demonstrate functional cerebral asymmetry in neuropsychiatric patients.

ASSUNTO(S)

ciencias da saude neuropsychiatric disorders diagnosis atividade cerebral assimétrica spect cerebral asymmetric cerebral activity cerebral spect tympanic temperature diagnóstico de distúrbios neuropsiquiátricos temperatura timpânica

ACESSO AO ARTIGO

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