How to obtain snr map from mriqc

I am in the process of comparing different structural sequences that we are piloting for a current study, and I’ve found the IQMs that mriqc provides to be particularly helpful. However, I was additionally hoping to compare the snr maps from these different sequences to obtain a sense for where each sequence has relative strengths and relative weaknesses in terms of snr. In looking through the intermediary work files from mriqc, I am having difficulty determining which intermediary nifti files contain information about the snr (that is subsequently used to obtain measures of global snr that are output from mriqc). Any guidance for navigating the workdir files to determine snr is much appreciated!