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Abstract #5331

A Group level analysis to compare characteristics of balanced SSFP fMRI with non-balanced techniques

Arash Foroudi Ghasemabadi1, Mahdi Khajehim1, Vahid Malekian1, and Abbas Nasiraei Moghaddam1,2

1Biomedical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran, 2School of Cognitive Sciences, Institute for Research in Fundamental Sciences (IPM), Tehran, Iran

Non-balanced SSFP has been recently suggested as a viable approach for T2-weighted SSFP fMRI. Compared to bSSFP, it entirely eliminates the problematic banding artifacts. However, its sensitivity has not yet been systematically investigated. In this study, fixed effects group analysis was performed on balanced and non-balanced SSFP data from seven healthy subjects in 7 T. We found that, group activation maps are generally similar, besides, mean z-values for the two methods are not significantly different. The obtained results suggest that the newly developed nbSSFP method is a viable approach to substitute bSSFP in high resolution fMRI studies.

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