Abstract #2378

Quantifying Cerebral Activity during a Visual Stimuli using QSM and Multiband-EPI

Sagar Buch¹, Olivia Stanley², L. Martyn Klassen¹, and Ravi S. Menon^1,2

¹Center for Functional and Metabolic Mapping, Robarts Research Institute, Western University, London, ON, Canada, ²Medical Biophysics, Western University, London, ON, Canada

Phase imaging and QSM abet the magnitude fMRI by revealing and quantifying the draining veins of the activation areas. Consequently, QSM sheds light on calibrating the % BOLD change and, when combined with CBF, has a potential to determine the basis of negative BOLD signal; in particular if it is due to increased oxygenation during rest periods or reduced oxygenation during the activation.

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