Abstract #2265

Prospectively motion-corrected multi-echo MPRAGE and wave-controlled aliasing in parallel imaging MPRAGE for pediatrics motion suppression

Emi Niisato¹, Yung-Chieh Chen², Bhat Himanshu³, Wei Liu⁴, Daniel Nicolas Splitthoff⁵, and Cheng-Yu Chen²

¹Siemens Healthcare Limited, Taiwan, Taipei, Taiwan, ²Taipei Medical University Hospital, Taipei, Taiwan, ³Siemens Medical Solutions, Malvern, PA, USA, Malvern, PA, United States, ⁴Siemens Shenzhen Magnetic Resonance Ltd., Shenzhen, China, Shenzhen, China, ⁵Siemens Healthcare GmbH, Erlangen, Germany, Erlangen, Germany

Pediatric patients are preferred to be scanned with protocols which are resistant to motion artifact or which complete in a short scan time. We investigated the extent of motion artifact suppression in pediatric patients using modified multi-echo Magnetization Prepared Rapid Acquisition Gradient Echo (MEMPRAGE) with prospective motion correction using 3D EPI volumetric navigators (vNav Moco) by comparing with wave-controlled aliasing in parallel imaging (wave-CAIPI) MPRAGE. Visual assessment revealed vNav Moco MEMPRAGE significantly suppressed head motion artifacts compared with wave-CAIPI MPRAGE and conventional MRPAGE.

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