Abstract #1895

Investigating the detection capability of RSNs with fMRI at a low field scanner equipped with a high-performance gradient

Arjama Halder¹, Demetrius Riberio de Paula², William Handler^3,4, Andrea Soddu³, and Blaine Chronik^1,3,5

¹Medical Biophysics, Western University, London, ON, Canada, ²Radbound University, Nijmegen, Netherlands, ³Physics and Astronomy, Western University, London, ON, Canada, ⁴xMR Labs, London, ON, Canada, ⁵The xMR Labs, London, ON, Canada

Synopsis

Preliminary evaluation of the feasibility to perform resting state BOLD fMRI at a low field (0.5 T) MR scanners equipped with a high-performance gradient system by investing the detection capability of RSNs at lower field strengths. There was an overall deterioration in the number of detected regions within all RSNs as the tSNR decreased. However, the 0.5 Evry system that will be used for experimental studies offer a better SNR efficiency than the modelled cases considered here suggesting reasonable capability in extracting RSNs that can potentially provide clinical utility.

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