säteilyserapointilaitteesiemennysmenetelmä

Säteilyserapointilaitteesiemennysmenetelmä, often translated as radiation therapy seed implantation or brachytherapy, is a medical procedure used in cancer treatment. It involves placing radioactive sources, known as seeds, directly into or very close to a tumor. This allows for a high dose of radiation to be delivered to the cancerous cells while minimizing damage to surrounding healthy tissues.

The seeds used are typically small, about the size of a grain of rice, and are made of radioactive isotopes. The method can be temporary, where the seeds are removed after a specific period, or permanent, where they remain in the body indefinitely. Permanent seeds are often used for prostate cancer, where they gradually decay and lose their radioactivity over time. Temporary implants might use higher-activity sources and are removed once sufficient radiation has been delivered.

The implantation procedure is usually performed by a radiation oncologist or a surgeon, often under image guidance such as ultrasound or CT scans. This ensures precise placement of the radioactive sources. The radiation emitted by the seeds damages the DNA of cancer cells, preventing them from growing and dividing, ultimately leading to their death. Säteilyserapointilaitteesiemennysmenetelmä is a targeted form of radiotherapy, offering an effective treatment option for various types of cancer.