TASK FOR DISCUSSION
The optional --statistics flag will generate a file statistics.json with volume (in mm³) and mean intensity of each class. We can parse this into MITK, if needed.
This is planned as one of the advanced options. Assuming we have a positive disposition to include the feature of TotalSegmentator in MITK, what's the best way to display statistics per label on UI?

Here is a sample JSON for reference:

"vertebrae_T12": {
        "volume": 49194.0,
        "intensity": 178.02
    },
    "vertebrae_T11": {
        "volume": 2052.0,
        "intensity": 294.45
    },
    "vertebrae_T10": {
        "volume": 0.0,
        "intensity": 0.0
    },

As we can see, if the volume or intensity is non-zero if the label is present in the output segmentation.