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External beam radiation therapy
Delivered internally, using unsealed liquid sources or pellets or seeds implanted temporarily or permanently. More commonly, it is delivered by a machine that aims beams from the outside at targets located internally, and passes through healthy cells on entry and exit, as the # of beams increase, and focus on the target, the dose to healthy tissue diminishes. Ebrt is common.
Dr. Andrew Turrisi reviewed this
49 year experience in Radiation Oncology
Treats
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What is the definition or description of: external beam radiation therapy?
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