Abstract #2074

Correcting for T2* related blurring in spiral MR: A novel method compensating for spatial variations in T2*

Malte Roehl^1,2, Peter Gatehouse^1,2, Pedro Ferreira^1,2, Sonia Nielles-Vallespin^1,2, Sonya Babu-Narayan^1,2, Margarita Gorodezky^1,2, Hui Xue³, Peter Kellman³, Dudley Pennell^1,2, David Firmin^1,2, and Andrew Scott^1,2

¹Imperial College London, London, United Kingdom, ²Royal Brompton Hospital, London, United Kingdom, ³NIH, Bethesda, MD, United States

In regions of short T2*decay during long spiral k-space covering readouts can cause significant image blurring. In this work we introduce a novel correction for spatially varying T2* including a stimulated echo-based spiral T2* mapping sequence and compare it to an existing correction for constant T2*. Using both computational simulations and in-vivo spiral cardiac diffusion tensor data we show that the spatially varying correction improves the sharpness compared to the constant correction.

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