No problem John.
If you are then looking at radio-surgery, my thought (right or wrong) would be the accurracy of the radio-treatment and making sure minimal radiation would hit the veins.....
In your radio-research, I would ask the radio-oncologists their thoughts on it. But, I know you already know that!
BTW, brunch? I hope so!
Ok, keeping mouth shut now... get it on tape as no one will believe I'm getting quiet now.