Thanks for posting this. My thoughts and prayers are there for Scott to make a full recovery. He has been through so many serious health issues - may he bounce back from this one, too! All the best to you, Scott!
That laser-knife surgical technique is actually pretty cool. By bombarding your head with gamma rays from many different angles at the same time, you can arrange to have a huge concentration of radiation at the site of the tumor without affecting the surrounding tissue very much.
Any prcedure involving the brain carries risk, but this treatment is very promising, I think.