Técnicas quantitativas de imagens por ressonância magnética
DOI:
https://doi.org/10.29384/rbfm.2019.v13.n1.p57-65Palavras-chave:
relaxometria, ponderação em difusão, tensor de difusão, susceptibilidade magnética, espectroscopia, imagens espectroscópicasResumo
Técnicas quantitativas de imagem são aquelas que permitem a mensuração de variáveis físicas ou químicas, passíveis de serem comparadas entre diferentes regiões anatômicas e indivíduos. Embora a maioria das técnicas baseadas em ressonância magnética mais utilizadas na clínica não sejam quantitativas, existem várias técnicas baseadas nesse fenômeno que o são. O objetivo desta revisão é fornecer uma breve descrição de algumas das principais técnicas quantitativas de imagens baseadas em ressonância magnética, assim como de suas aplicações. As técnicas descritas são: relaxometria, imagens ponderadas por difusão, imagens do tensor de difusão, imagens de susceptibilidade magnética, espectroscopia e imagens espectroscópicas.
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