sädehoidoista

Sädehoito, also known as radiation therapy, is a medical treatment that uses high-energy radiation to kill cancer cells or shrink tumors. It is often used in combination with surgery and chemotherapy to treat various types of cancer. The radiation can be delivered externally, using a machine outside the body, or internally, using radioactive materials placed inside the body.

External beam radiation therapy involves directing a beam of high-energy radiation at the tumor from outside the body. This can be done using photons, electrons, or protons. The type of radiation used depends on the location and size of the tumor, as well as the patient's overall health.

Internal radiation therapy, also known as brachytherapy, involves placing radioactive materials directly into or near the tumor. This can be done using seeds, wires, or catheters. Brachytherapy is often used to treat prostate, cervical, and breast cancers.

Sädehoito can cause side effects, including fatigue, nausea, and skin irritation. However, it is generally well-tolerated and can be an effective treatment for many types of cancer. The goal of sädehoito is to deliver a high enough dose of radiation to the tumor to kill cancer cells, while minimizing damage to surrounding healthy tissue. This is often achieved through careful planning and precise delivery of the radiation.