Patient Care and Research

ASTRO Evidence-Based Consensus Statement on Accelerated Partial Breast Irradiation (APBI) - Update

Published: March 2017 (Web posted September 2016)

Read Consensus Statement
Original 2009 Statement

This update evaluates new literature published since the original consensus statement publication in 2009. It revises the "suitable," "cautionary" and "unsuitable" patient groups for APBI, and provides guidance on use of intraoperative radiation therapy (IORT) for partial breast irradiation in early-stage breast cancer. 

Endorsed by:

Society of Surgical Oncology

Key Points:

  • Electron beam IORT
  • Low-energy X-ray IORT


Clinical Controversies (CME)
First Results of a phase II trial of once-weekly hypofractionated breast irradiation (CME)
Patient Brochure


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