Abstract #4476

Postoperative Spinal Imaging Metal Artefact Reduction Using Ultrashort Echo Time MRI: A Feasibility Study

Amy Ming-Chun Tsai Sevao¹, Alistair Young¹, Benjamin Schmitt², Hament Pandya³, Karen Billington³, Anthony Doyle³, David Grodzki⁴, and Brett Cowan⁵

¹Anatomy with Medical Imaging, University of Auckland, Auckland, New Zealand, ²Sydney, Australia, ³Auckland, New Zealand, ⁴Erlangen, Germany, ⁵University of Auckland, Auckland, New Zealand

Post-operative spine imaging with metal implants in situ are problematic because of the significant metal artefacts, in both CT due to beam hardening, and MRI fom signal loss. Ultrashort Echo Time (UTE) MRI has potential to significantly reduce metal artefacts because of its method of acquisition. Significant differences in metal artefacts between conventional MR and UTE are found in our study, imaging sheep spine with spinal fusion hardware in situ, with importnat clinical implications.

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