Second opinion?

Today wife have chemo and I spoke with onc and ask him is it possible to do radiation on her liver mets(she have lung mets also).He told me that is impossible!I just can't believe,We have Novalis near us but he tell me this is no option for her.Should I have second op.Is it even possible to do radiation with both(liver,lung)?He said liver tissue now can't stand radiation?I googled but didn't find exactly.