Optimized 7 T Cortical Magnetization Transfer Saturation Imaging: Application to Cortical Myelin Imaging in Multiple Sclerosis

We designed an MRI protocol for rapid, high-resolution human cortical MTsat (csMTsat) imaging at 7 T. Our approach leveraged the PTx capability of the 7 T Siemens Terra MRI system. Further, we developed a post-processing scheme that reduces residual B1+ field bias and noise in csMTsat maps for imaging cortical myelin in the human cortex at high-resolution, which can be applied to study cortical demyelination in Multiple Sclerosis.