Fig. 6.

Percentage error upon MBF estimation for different realizations of the MRXCAT simulation. a Quantification errors in % for k-t PCA and k-t SPARSE-SENSE at undersampling rates R = 2, 5, 10 using AIF and myocardial curves extracted from the undersampled data. Note that colour axes for R = 10 were adjusted to portray the strong MBF underestimation. b Quantification errors [%] as in (a), derived using a reference AIF extracted from fully sampled data and myocardial curves from the undersampled data, as accomplished using dual-sequence acquisition. The strong MBF underestimation at R = 10 is reduced with the reference AIF