Abstract #0337

Referenceless Nyquist Ghost Correction Outperforms Standard Navigator Based Method for DT-CMR

Zimu Huo^1,2, Ke Wen¹, Yaqing Luo¹, Pedro F Ferreira¹, Radhouene Neji^3,4, Dudley Pennell¹, Andrew D Scott¹, and Sonia Nielles-Vallespin¹

¹CMR Unit, Royal Brompton Hospital and NHLI, Imperial college London, London, United Kingdom, ²Department of Bioengineering, Imperial College London, London, United Kingdom, ³School of Biomedical Engineering and Imaging Sciences, King’s College London, London, United Kingdom, ⁴MR Research Collaborations, Siemens Healthcare Limited, Frimley, United Kingdom

Synopsis

Keywords: Myocardium, Diffusion Tensor ImagingNyquist ghosting is a common artefact in echo planar imaging (EPI), typically corrected using separately acquired reference data. Here we demonstrate that reference free Nyquist ghost correction algorithms based on entropy and Ghost/Object ratio minimization can outperform navigator based methods and improve imaging efficiency for in vivo diffusion tensor cardiovascular magnetic resonance.

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