Hi I don't know the answer to your question but if the radiotherapist isn't happy then I doubt they would go ahead with the radiotherapy. Before going ahead they make sure that they are happy that they will be able to treat the correct area.
The radiotherapy team are probably the best people to discuss any concerns you have. My first appointment with them involved lots of measuring up and teaching me the breathing technique that helps move your heart out of the way and I was also able to ask any questions I had.
