Abstract #2250

CSF-Free Imaging of the Lumbar Plexus using Sub-Millimeter Resolutions with 3D TSE

Barbara Cervantes¹, Houchun Harry Hu², Amber Pokorney², Dominik Weidlich¹, Hendrik Kooijman³, Ernst Rummeny¹, Axel Haase⁴, Jan S Kirschke⁵, and Dimitrios C Karampinos¹

¹Diagnostic and Interventional Radiology, Technische Universität München, Munich, Germany, ²Radiology, Phoenix Children’s Hospital, Phoenix, AZ, United States, ³Philips Healthcare, Hamburg, Germany, ⁴Zentralinstitut für Medizintechnik, Garching, Germany, ⁵Neuroradiology, Technische Universität München, Munich, Germany

High-resolution MRI with 3D turbo spin echo (TSE) is arising as an accurate, non-invasive method for detecting disease and injury in the nerves of the lumbar plexus. Imaging of the lumbar plexus with 3D TSE frequently faces signal contamination of the cerebrospinal fluid (CSF) within the spine. Increasing spatial resolution in 3D TSE can affect flowing signal. The present study describes numerically the effects of the imaging gradients in 3D TSE on flowing CSF and demonstrates in vivo that CSF can be completely suppressed without modifications to refocusing angle modulation when sub-millimeter voxel sizes are used with 3D TSE.

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