Brachytherapy (internal radiation) is a form of radiotherapy; it is subdivided into seeds and the afterloading therapy. Brachytherapy with seeds is a minimally invasive procedure during which tiny capsules with radioactive substances, so-called “seeds” (approximately the size of a grain of rice), are inserted into the area to be treated by means of a thin needle. They radiate the cancer internally in a very targeted manner. The inserted seeds are so small that the patient does not feel them. Depending on the circumstances, either radioactive iodine (I-125) or palladium (PD-103) is used.
Loaded applicators for the afterloading procedure. The radiation destroys the tumour, while the healthy tissue remains unaffected.