3D-Video-fMRI: 3D Motion Tracking in a 3T MRI Environment

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2011

Autores

Fernandes, JM (Autor) Outra; Tafula, S (Autor) Outra; Cunha, JPS (Autor) FEUP

Ata de Conferência Internacional

Título: Image Analysis and Recognition

Páginas: 59-67

8th International Conference, ICIAR 2011

Burnaby, BC, Canada, June 22-24, 2011

Indexação

ISI Web of Knowledge - 2 Citações

Scopus - 2 Citações

Outras Informações

ID Authenticus: P-002-WYQ

DOI: 10.1007/978-3-642-21596-4_7

Abstract (EN): We propose a technical solution that enables 3D video-based in-bore movement quantification to be acquired synchronously with the BOLD function magnetic resonance imaging (fMRI) sequences. Our solution relies on in-bore video setup with 2 cameras mounted in a 90 degrees angle that allows tracking movments while acquiring fMRI sequences. In this study we show that using 3D motion quantification of a simple finger opposition paradigm we were able to map two different finger positions to two different BOLD response patterns in a typical block design protocol. The motion information was also used to adjust the block design to the actual motion start and stop improving the time accuracy of the analysis. These results reinforce the role of video based motion quantification in fMRI analysis as an independent regressor that allows new findings not discernable when using traditional block designs.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 9