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Abstract #4390

Evaluation of multiband EPI acquisitions for resting state fMRI

J Gabriel Castrillon 1 , Valentin Riedl 1,2 , Martin Bhrer 3 , and Christine Preibisch 1

1 Neuroradiology, Klinikum Rechts der Isar, Technische Universitt Mnchen, Mnchen, Bayern, Germany, 2 TUM-Neuroimaging Center, Klinikum Rechts der Isar, Technische Universitt Mnchen, Mnchen, Bayern, Germany, 3 Gyrotools, Zurich, Switzerland

This work evaluates the results of r-fMRI analysis when different multiband factors are used in data acquisition. Four subjects were scanned on a Philips Ingenia 3 T using a 32 channel head coil. Multiple r-fMRI data were acquired for 7 min using four protocols with different multiband factors. Even though the temporal SNR decreases as could be expected from the heavily undersampled data combining a SENSE factor of 2 with multiband factors up to 4, the mean z-values and spatial representation of the four investigated networks were remarkably stable. Multiband EPI technique could become a new standard in (r-)fMRI.

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