Is Sulfur hexafluoride lipid microsphere Safe in Breastfeeding

I am a breastfeeding mother and i want to know if it is safe to use Sulfur hexafluoride lipid microsphere? Is Sulfur hexafluoride lipid microsphere safe for nursing mother and child? Does Sulfur hexafluoride lipid microsphere extracts into breast milk? Does Sulfur hexafluoride lipid microsphere has any long term or short term side effects on infants? Can Sulfur hexafluoride lipid microsphere influence milk supply or can Sulfur hexafluoride lipid microsphere decrease milk supply in lactating mothers?

No published experience exists with Sulfur hexafluoride lipid microsphere during breastfeeding. Because the half-life of the agent is about 10 minutes and absorption of the drug by the infant is unlikely. If Sulfur hexafluoride lipid microsphere is required by the mother, it is not a reason to discontinue breastfeeding.[1] Because of the lack of information, the American College of Radiology states that temporary (~24 hours) pumping and discarding of milk may be considered.[2] However, this recommendation appears to be excessively cautious.