| Sometimes a doctor will recommend radiation therapy | | | | delivered internally is sometimes called brachytherapy. |
| as a treatment for cancer. Radiation therapy is also | | | | In external radiation therapy, the two most common |
| sometimes call radiotherapy. | | | | kinds of radiation used are x-rays and gamma rays. |
| This therapy is rarely used alone as a cancer | | | | There are very strict state and federal regulations |
| treatment. It is usually used in combination with other | | | | that oversee the use and care of the equipment |
| treatments like chemotherapy or surgery. | | | | used, and the safety of the patient is the highest |
| Almost everybody has had their teeth x-rayed or | | | | priority. |
| have had chest x-rays as part of normal dental and | | | | Internal radiation therapy involved implanting |
| medical care. Radiation therapy is based on the same | | | | radioactive substances like cesium, iridium, and iodine |
| technology, except that the x-rays are delivered at a | | | | near or into cancer cells. These substances can be |
| much higher dosage that is used for regular medical | | | | delivered by injection directly into a body cavity or |
| and dental examinations. At high doses, x-rays kill | | | | introduced by the patient swallowing a pill. |
| cancer cells and shrink tumors. | | | | If you or a loved one is undergoing or about to |
| It can be delivered to a cancer patient either | | | | undergo this type of cancer treatment, the best |
| externally or internally. When radiation is delivered | | | | advice is to talk to the doctor rather than friends, |
| externally, a radiation beam is used. When it is | | | | neighbors, or relatives who once had radiation |
| delivered internally, radioactive substances are | | | | therapy. Specialists can answer questions and provide |
| implanted into the body. Radiation therapy that is | | | | current information that will help to alleviate much of |
| delivered internally is being used much more | | | | the fear associated with this type of cancer |
| frequently today. The type of therapy that is | | | | treatment. |