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Abstract #3947

Late Gadolinium Enhancement Imaging with Dynamic_TI in the Atrial Fibrillation Population

Jennifer Keegan1, Peter Gatehouse1, Sonya Babu-Narayan1, Ricardo Wage1, Shouvik Haldar2, David Firmin1, 3

1Cardiovascular Magnetic Resonance, Royal Brompton Hospital, London, United Kingdom; 2Cardiology, Royal Brompton Hospital, London, United Kingdom; 3Imperial College, London, United Kingdom

An adaptive inversion recovery preparation (dynamic_TI) was implemented to improve late gadolinium enhancement imaging in patients with variable RR intervals. Three-D data were acquired in phantoms and 2D data were acquired in 5 patients with atrial fibrillation. We demonstrate that dynamic adaptation of the inversion time for each cardiac cycle is feasible and can result in less ghosting, improved nulling of normal myocardium and increased blood-myocardium contrast-to-noise ratio. Application to 3D studies in the atrial fibrillation population should result in fewer inadequate studies.