How do you modify your dose constraints when giving lung SBRT to a new lesion in a patient previously treated with lung SBRT?

Hi @Dr. First Last. I don’t usually change it for lung constraints with a few caveats. Here’s the way I think about it, more or less…

First of course, is the patient. How’s their lung function? Are they on O2 or limited in their ADLs? That raises the bar for treatment and constraints. Could they tole...