Abstract #1172

Spinal Cord Segmentation and T2*-relaxation times of GM and WM within the Spinal Cord at 9.4T

Ole Geldschläger¹, Dario Bosch¹, Nikolai Avdievitch¹, Klaus Scheffler^1,2, and Anke Henning^1,3

¹High-field Magnetic Resonance, Max-Planck-Institut for biolog. Cybernetics, Tübingen, Germany, ²Institute for Biomedical Magnetic Resonance, University Hospital Tübingen, Tübingen, Germany, ³Advanced Imaging Research Center, University of Texas Southwestern Medical Center, Dallas, TX, United States

This study presents the first investigations with algorithmic spinal cord-segmentation, as well as gray matter/white matter-segmentation within the spinal cord, at the ultrahigh field strength of 9.4T. On multi-echo gradient-echo acquisitions from three subjects, the tested algorithms perform the segmentations correctly. Based on these multi-echo data, pixel-wise T2*-relaxation time maps were calculated. By means of the segmentations, averaged T2*-times of 24.88ms +- 6.68ms for gray matter and 19.37ms +- 8.66ms for white matter, were calculated.

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