Abstract #5521

Density Weighted Concentric Circle Trajectories for Brain MRSI at 7T

Lukas Hingerl¹, Bernhard Strasser¹, Philipp Moser¹, Gilbert Hangel¹, Siegfried Trattnig^1,2, and Wolfgang Bogner¹

¹High Field MR Centre, Medical University of Vienna, Vienna, Austria, ²Christian Doppler Laboratory for Clinical Molecular MR Imaging, Medical University of Vienna, Vienna, Austria

A density weighted concentrically circular echo-planar trajectories readout scheme is presented for brain MRSI at 7 T. We give an analytic solution for the variable radii distribution in order to intrinsically measure a Hamming weighted k-space. A comparison with post acquisition filtered equidistant concentric circles is done. Invivo metabolic maps and spectra are shown.

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