Quantitative MRI requires accurate knowledge of the spatially varying B1 and B0 fields in order to accurately account for their effects on relevant parameters included in the signal models. B1 maps in the human brain are commonly produced from a double-angle method (DAM) with many variations in the implementations. B0 maps are usually estimated from the distortions in two 2D axial EPI scans acquired with opposing phase encode directions (topup). Here, we propose to integrate the SE-EPI scan requirements for B0 mapping with topup and B1 mapping with the DAM, for simultaneous B1 and B0 mapping with reduced scan time.
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