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Abstract #4647

Robust inter-blade and inter-slice motion correction reconstruction for PROPELLER MRI

Xucheng Zhu1, Shaorong Chang2, Moran Wei3, Ali Ersoz3, Ajeet Gaddipati3, and Piero Ghedin3
1GE HealthCare, Menlo Park, CA, United States, 2GE HealthCare, Dallas, TX, United States, 3GE HealthCare, Waukesha, WI, United States

Synopsis

Keywords: Motion Correction, Motion Correction, PROPELLER

Motivation: PROPELLER MRI has been widely used to mitigate patient motion; however, conventional approach is not very robust, and does not address inter-slice misalignment that tends to occur on few moving patients.

Goal(s): Develop new robust inter-blade and inter-slice motion correction technique.

Approach: We propose a novel inter-blade and inter-slice motion correction reconstruction technique for PROPELLER MRI using volumetric calibration scan as reference.

Results: The results show large improvement brought by the proposed method compared to convention Motion Correction on both in-plane motion artifact mitigation and inter-slice alignment.

Impact: Reducing repeat scans due to patient motion, hence, increase patient throughput.
Enable scanning patient who cannot keep still in the scanner, such as pediatric patients.

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Keywords