accelerated partial breast irradiation
Also written as: APBI — accelerated partial breast irradiation
A radiation therapy technique that delivers higher doses over fewer treatments to only the tumor bed region rather than the entire breast.
Full Definition
Accelerated partial breast irradiation (APBI) is a radiation therapy approach that delivers focused radiation to the tumor bed and surrounding tissue over a shortened timeframe, typically 1-5 days instead of the standard 3-6 weeks for whole breast radiation. This technique is suitable for selected early-stage breast cancer patients with favorable tumor characteristics. APBI can be delivered through various methods including brachytherapy (internal radiation sources), external beam techniques, or intraoperative radiation. The approach aims to reduce treatment burden while maintaining local control, though patient selection criteria and long-term outcomes continue to be refined through ongoing research.
Usage
Usage note: Commonly abbreviated as APBI in radiation oncology documentation.
In Context
- "The patient was deemed suitable for accelerated partial breast irradiation given her favorable tumor characteristics." — Radiation oncology consultation
- "Accelerated partial breast irradiation using balloon catheter brachytherapy was completed without complications." — Treatment completion note