function measureFatInfiltration(obj)
  obj.fat = [];
  for i = 1:size(obj.subdivisions, 3)
    measurer = MuscleMeasurer(obj.subdivisions(:,:,i),...
      obj.loadSlice("ForMeasurements"), obj.loadSlice("PixelSpacings"));
    obj.fat = [obj.fat; measurer.getRatioFat()];
  end
end