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Abstract #2074

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

Malte Roehl1,2, Peter Gatehouse1,2, Pedro Ferreira1,2, Sonia Nielles-Vallespin1,2, Sonya Babu-Narayan1,2, Margarita Gorodezky1,2, Hui Xue3, Peter Kellman3, Dudley Pennell1,2, David Firmin1,2, and Andrew Scott1,2
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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