Ambient Lightning gives us the ability to perform radiation therapy at specific breathing phases. For radiation treatment of the breast or chest wall deep inspiration breath hold techniques have become the new standard of care. The radiation only in the deep inspiration allows for saving lung and heart volume from high dose volumes and reduces the risk of late toxicity of the heart and lungs.
The room light gives you feedback as to which breathing phase you are in and whether the radiation is taking place. Breathing phases are backed up with specific room light so that you have visual control over the optimal breathing phase during radiotherapy. If you are not in the perfect phase of breathing, the irradiation will be stopped and resumed with the next breathing cycle. This system is used, among other things, in the treatment of lung and breast tumors.