Turbo Spin Echo Imaging at 7T with Bilateral Orthogonality Generative Acquisitions Method for Homogeneous T1,T2 and Proton Density Contrasts

Motivation: TSE imaging at 7T is challenging due to the worsening of transmit field inhomogeneity, limiting the clinical utilization of 7T MRI. Goal(s): Homogeneous T1, T2 and proton density weighted images can be obtained with the TSE implementation of Bilateral Orthogonality Generative Acquisitions (BOGA) method, which was initially implemented for T2* contrast. Approach: Multiple TSE images with complimentary RF modes and scan parameters are acquired as input images for BOGA method to obtain homogeneous T1, T2 and proton density contrast in the final images. Results: B1+ inhomogeneity effects are removed from the images with T1, T2 and proton density weighted contrast. Impact: TSE application of BOGA method can accelerate the clinical utilization of 7T, as the B1+ inhomogeneity effects are removed from the final contrast without any prior data acquisitions.