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Abstract #2982

Linear Regression Modeling of BOLD Response to task activation reflects neurovascular uncoupling in MS

Wanyong Shin1, Krishnan Balu2, Ajay Nemani1, Daniel Ontaneda1, and Mark J Lowe1
1Imaging Institute, Cleveland Clinic, Cleveland, OH, United States, 2Epilepsy Center, Cleveland Clinic, Cleveland, OH, United States

Synopsis

Keywords: Multiple Sclerosis, Multiple Sclerosis

Motivation: To understand the different BOLD activation pattern in multiple sclerosis patients

Goal(s): To Investigate the neuro-vascular uncoupling of MS patients to be compared with healthy controls

Approach: During the visual task and hypercapnia challenge, BOLD and CBF are measured simultaneously with EEG in patients of MS (n=11) and health controls (n=15).

Results: We find that, for healthy controls, only models that included neuronal activity, i.e. EEG power change during task performance, were significantly predictive of BOLD response

Impact: We investigate BOLD activation of MS patients and compare with controls using EEG simultaneously during a visual task and hypercapnia challenge. We find that the BOLD response in MS does not directly depend on the degree of underlying neuronal activity.

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