Noise amplification map, in ky-f space, were measured on phantom data in two different ways: (a) Using 45 repetitive measurements, and (b) using a single repetition and a Monte Carlo approach. For all tested methods, (i) unregularized UNFOLD-SENSE, (ii) UNFOLD-SENSE with ZTR, (iii) k-t SENSE and (iv) hybrid-SENSE, both noise-amplification measurement methods gave essentially identical results, except for a central darker band in (a) associated with signal instability in repetitive measurements on our scanner. These results are interpreted here as a successful validation of the Monte Carlo approach.