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Abstract #1326

Multiparametric MR neurographic orthopantomogram of the mandibular bone and nerve using ultra-short echo-time imaging, simultaneous multi-slice readout-segmented echo planar imaging and 3D reversed fast imaging with steady state free procession

Andrei Manoliu1, Michael Ho1, Daniel Nanz1, Marco Piccirelli2, Evelyn Dappa1, Lukas Filli1, Andreas Boss1, Gustav Andreisek1, and Felix Pierre Kuhn1

1Institute for Diagnostic and Interventional Radiology, University Hospital Zurich, University of Zurich, Zurich, Switzerland, 2Department of Neuroradiology, University Hospital Zurich, University of Zurich, Zurich, Switzerland

We propose a new technique for ‘MR neurographic orthopantomograms' using ultra-short echo-time imaging of bone and teeth with morphological and functional neurography. Ten healthy volunteers were scanned at 3.0T. Bone images were acquired using a ultra-short TE sequence. Morphological neurography was performed using dedicated PSIF and SPACE STIR sequences. Functional neurography was accomplished using readout-segmented EPI with simultaneous multi-slice excitation. Image acquisition and post-processing were feasible in all volunteers. All mandibular bones and nerves were assessable and considered normal. Fiber tractography yielded physiological diffusion properties. The presented technique allowed robust assessment of osseous and neuronal structures in a single examination.

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