Magnetization Prepared (MP) 3D DIR at 7.0 Tesla

Introduction: 3D Double Inversion Recovery (DIR) at 1.5T and 3T has proven to be a valuable tool for the diagnosis of cortical and/or sub cortical lesions. However, at 3Tesla SNR and spatial resolution is intrinsically low. At 7T, the implementation of 3D DIR is less straightforward due to SAR constraints, high sensitivity to susceptibility and short T2 components and RF in-homogeneity. Moreover, the lengthening of T1 relaxation times of grey and white matter (GM and WM) while the T1 of CSF is less field dependent, introduces more T1 weighting that compromises the desired T2 contrast. The aim of the present stud…