3D conformal radiation therapy is a cancer treatment that shapes the radiation beams to match the shape of the tumor. In the past, radiation beams only matched the height and width of the tumor — exposing healthy tissue to radiation. Advances in imaging technology have made it possible to locate and treat the tumor more precisely.
Conformal radiation therapy uses the targeting information to focus precisely on the tumor, while avoiding the healthy surrounding tissue. This exact targeting makes it possible to use higher levels of radiation in treatment. More radiation is more effective in shrinking and killing tumors.