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Abstract #5263

Targeted fMRI using radial acquisition and polar reconstruction

Banafshe Shafiei Zargar1, Farzaneh Keyvanfard1,2, 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

Recently there has been growing interests in radial fMRI. However, the reconstruction algorithm is also an important issue in K-space radial sampling. In this work, we have investigated the effect of a novel reconstruction method based on polar Fourier transform, for radially acquired fMRI data in polar coordinates. Based on its special features such as central focusing behavior, the obtained results demonstrate the capability of this method in reliable activity detection in targeted regions and also show a higher temporal stability in those areas.

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