Abstract #3535

Removal of Gibbs ringing artefacts for 3D acquisitions using subvoxel shifts

Thea Bautista¹, Jonathan O'Muircheartaigh^2,3,4,5, Joseph V Hajnal^1,3, and J-Donald Tournier^1,3

¹Department of Biomedical Engineering, School of Biomedical Engineering and Imaging Sciences, King's College London, London, United Kingdom, ²Forensic & Neurodevelopmental Sciences, King's College London, London, United Kingdom, ³Centre for the Developing Brain, School of Biomedical Engineering and Imaging Sciences, King's College London, London, United Kingdom, ⁴Department of Perinatal Imaging & Health, School of Biomedical Engineering and Imaging Sciences, King's College London, London, United Kingdom, ⁵MRC Centre for Neurodevelopmental Dirorders, King's College London, London, United Kingdom

The method of subvoxel shifts is widely used for the removal of Gibbs ringing artefacts from 2D multislice data, but is not appropriate for 3D data. Here, we show that the method can trivially be extended to cater for the 3D case with simple modifications. We demonstrate the method on a numerical phantom, and assess its practical performance using in vivo 3D brain scans.

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