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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