radiation boost
Additional focused radiation dose delivered to the tumor bed after whole-breast irradiation to reduce local recurrence risk in breast-conserving therapy.
Full Definition
A radiation boost is a supplementary dose of radiation therapy delivered specifically to the tumor bed following completion of whole-breast irradiation in patients undergoing breast-conserving therapy. The boost typically delivers an additional 10-16 Gy in 2 Gy fractions to the area at highest risk for local recurrence. This technique is particularly beneficial for younger patients, those with high-grade tumors, or cases with close surgical margins. The boost can be delivered using external beam radiation therapy, brachytherapy, or intraoperative techniques, depending on patient factors and institutional capabilities.
Usage
Usage note: Specify the boost technique (electron beam, brachytherapy) and dose when documenting treatment plans.
In Context
- "The patient will receive a 14 Gy radiation boost to the tumor bed using electron beam therapy." — Radiation oncology treatment plan
- "Given the patient's young age and high-grade tumor, a radiation boost is recommended per NCCN guidelines." — Multidisciplinary team meeting