Improving FLAIR SAR efficiency at 7T by adaptive tailoring of adiabatic pulse power through deep learning B 1 + estimation.
Shahrokh Abbasi-RadKieran O'BrienSamuel KellyViktor VeghAnders RodellYasvir TesiramJin JinMarkus BarthSteffen BollmannPublished in: Magnetic resonance in medicine (2020)
We propose a SAR reduction technique based on the estimation of B 1 + profiles from standard localizer scans using a CNN and show that scaling the inversion pulse power slice-by-slice for FLAIR sequences at 7T reduces SAR and scan time without compromising image quality.