Meeting Banner
Abstract #1088

The Effect of Parallel Imaging on the Sensitivity of BOLD Signal to Physiological Noise

Tomas Jonsson1, Tie-Qiang Li1

1Department of Medical Physics, Karolinska University Hospital, S-141 86, Stockholm, Sweden

The sensitivity to physiological noises of the reconstructed BOLD MR images is altered by the employed parallel imaging strategies. In this study, we mapped and compared the physiological noise sensitivity of BOLD fMRI data acquired with and without employing parallel imaging at two different spatial resolutions. Using higher spatial resolution reduces the signal strength and the relative sensitivity to physiological noise. This can be of SNR advantage particularly for time series fMRI data acquired at higher magnetic field.