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Signal Source in Heavily Diffusion-Weighted functional MRI
- Publication Year :
- 2009
-
Abstract
- The contribution of the BOLD effect in heavily diffusion weighted fMRI is still unclear. In this study, a multiple spin-echo echo-planar-imaging sequence after motion probing gradients was used to measure the transverse relaxation rate at different b-values. The results suggest that the contribution of BOLD to DW fMRI signal changes is independent of b-value. It is speculated that the main contribution to heavily diffusion-weighted functional MRI signal is not the BOLD effect.<br />17th Scientific Meeting & Exhibition
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.jairo.........f266c602a58bc70e0f181fe66b875e7a