Started Radiation 'boost' today

@Joannie not at all. This technique is relatively new and before it was introduced we saw very few radiation induced cardiac toxicities (most caused by a coexisting problem) but I suppose it's a case of if not make it better why not try it. The technique does benefit by lowering heart dose but if the technique is not used we still manipulate the dose in other ways to ensure the heart is kept within tolerance. Its actually not the heart itself that's the issue but a tiny artery called the LAD that runs on the outside of the heart that is the concern. The placement of this artery is different for everybody so if it's in a good spot there is no need for the added anxiety of the breath hold..