Maria Engel1, Lars Kasper1, Franz Patzig1, Samuel Bianchi1, and Klaas Prüssmann1
1Institute for Biomedical Engineering, ETH Zurich, Zurich, Switzerland
1Institute for Biomedical Engineering, ETH Zurich, Zurich, Switzerland
In this work we show high-temporal resolution fMRI using
T-Hex spiral-in trajectories. 3mm-resolved whole-brain volumes are acquired at
a frame rate of 5Hz.
Results from run B. 1) Time course of raw data, mean over ten
exemplarily chosen, activated motor cortex voxel. Gray lines mark right hand tapping,
dotted line marks pause (no tapping). 2) Spectrum of (1). 3) Spectrum of 12
exemplarily chosen voxel in CSF. 4) and 5) Output from cardiac and respiratory monitoring.
T-Hex spiral used in run A. Upper panel: k-space time course
of one shot. Lower panel: Cross-section through T-Hex stack, colour encoding
different shots (left) and acquisition time (center). Parametric view of one
shot, colour encoding again acquisition time (right).
