A procedure that uses computers to create a 3-dimensional picture of the tumor in order to target the tumor as accurately as possible and give it the highest possible dose of radiation while sparing normal tissue as much as possible. It is also known as 3-D or conformal radiation therapy.
Conventional radiation therapy directs x-rays not only at the tumor but also unavoidably at nearby healthy tissue. Conformational radiation is meant to deliver a higher dose of radiation to the cancer without causing so much damage to surrounding tissues.
Conformational radiation therapy is in use to treat prostate cancer and is under study with other types of cancer including lung cancer, brain tumors and cancer of the head and neck.
- Radiation therapy, external
Radiation therapy in which the source of radiation is a machine outside the body.
- Radiation therapy, internal
Radiation therapy in which a small container of radioactive material is implanted in the body, in or near the cancerous tumor.
- Radiation therapy, stereotactic
The use of a number of precisely aimed beams of ionizing radiation, each coming from a different direction and meeting at a specific point, to deliver radiation treatment to that spot.
- Radiation therapy, targeted
A procedure that uses computers to create a 3-dimensional picture of the tumor in order to target the tumor as accurately as possible and give it the highest possible dose of radiation while sparing normal tissue as much as possible. It is also known as 3-D conformal (or conformational) radiation therapy. Conventional radiation therapy directs […]
- Radiation, ultraviolet
Invisible rays that are part of the energy that comes from the sun. Ultraviolet radiation can burn the skin and cause skin cancer. Ultraviolet radiation is made up of three types of rays — ultraviolet A, ultraviolet B, and ultraviolet C. Although ultraviolet C is the most dangerous type of ultraviolet light in terms of […]