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Home >Information for Patients > Dictionary Index

Dictionary of Cancer Terms

View in Spanish: Radiación de dosis alta

High-dose radiation (hy-dose RAY-dee-AY-shun)
An amount of radiation that is greater than that given in typical radiation therapy. High-dose radiation is precisely directed at the tumor to avoid damaging healthy tissue, and may kill more cancer cells in fewer treatments. Also called HDR.

Source: National Cancer Institute Dictionary of Cancer Terms, available at www.cancer.gov/dictionary.