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Abstract #2115

Simultaneous Electroencephalography and Pseudo-Continuous Arterial Spin Labelling Measurements: Feasibility Study

Qingfei Luo 1 , Chung-Ki Wong 1 , Han Yuan 1 , Vadim Zotev 1 , Wen-Ming Luh 2 , and Jerzy Bodurka 1,3

1 Laureate Institute for Brain Research, Tulsa, OK, United States, 2 Cornell MRI Facility, Cornell University, Ithaca, NY, United States, 3 College of Engineering, Center for Biomedical Engineering, University of Oklahoma, Norman, OK, United States

Pseudo-continuous arterial spin labeling (PCASL) is a quantitative CBF-fMRI pulse sequence. We investigate feasibility of simultaneous electroencephalography (EEG) and PCASL multi-modal measurement. Specific absorption rate (SAR) of PCASL, may increase the temperatures of EEG electrodes and thus have potential safety risks. To evaluate the feasibility and safety we performed real-time measurements of EEG electrode temperatures during concurrent EEG&PCASL (acquired with standard imaging hardware) at 3 Tesla. The results showed that the electrode temperature after a long PCASL scan will reach about 34C - well below the safety limit (41C). Results show feasibility of multi-modal EEG&PCASL experiments.

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