MP2RAGE has become popular for T1 mapping at 7T. Accuracy is yet improved by using a separately acquired flip angle map when creating the protocol-specific lookup table. Here, two additional volumes acquired at differing flip angles are added to an MP2RAGE sequence to obtain two separate states of driven equilibriums, effectively forming a dual flip angle protocol within the cycle. By estimating the accelerated effective relaxation, T1*, from the signals, both T1 and B1+ can be solved for analytically. Thus, a multi-volume MPRAGE sequence is turned into a dedicated high-resolution T1 and flip angle-mapping protocol.
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