Table 2 Patient selection criteria for accelerated partial breast irradiation (APBI)
From: Accelerated partial breast irradiation: advances and controversies
Organization | Age (years) | Tumor size (cm) | Lymph node status | LVSI | Margin | Multifocality | DCIS | Neoadjuvant therapy | Histology |
|---|---|---|---|---|---|---|---|---|---|
ASTRO [15] | |||||||||
 Suitable | ≥60 | ≤2 | pN0 (i+/i−) | No | Negative (≥2 mm) | Clinically unifocal | None | None | IDC |
 Cautionary | 50–59 | 2.1–3.0 | – | Limited/focal | Close (<2 mm) | Clinically unifocal | ≤3 cm | – | ILC |
 Unsuitable | <50 | >3 | ≥pN1 | Extensive | Positive | Multifocal | >3 cm | Used | – |
ASBS [16] | ≥45 | ≤3 | N0 | – | Negative | – | ≤3 cm | – | IDC or DCIS |
ABS [17] | ≥50 | ≤3 | N0 | – | – | Unifocal | – | – | IDC |