Using breathing assistance devices to reduce tumor movement during radiation therapy

This trial is testing whether using CPAP or BiPAP devices—machines that gently push air into your lungs to help you breathe—can reduce tumor movement during radiation therapy for chest cancers. When you breathe normally, your lungs and tumors move slightly, which can make radiation therapy less accurate. This study will check if these breathing devices can keep your tumor still enough to improve treatment precision.

Tumors in the lungs and chest naturally move when you breathe, which can mean radiation doesn't hit the cancer as effectively as it should. Researchers want to see if this treatment can stabilize your breathing and tumor position, potentially making radiation therapy work better and safer.