What are your institutions' preferences on SBRT vs. histotripsy for treatment of liver metastases, and are you aware of any data to support one modality over the other?   

I'll avoid the institutional political discussion of competing modalities. Like many ablative modalities, there is limited data directly comparing the safety and effectiveness to SBRT. As the new kid on the block, histotripsy has no comparative data that I'm aware of with existing modalities.HistoSo...