From: Study protocol: Optimising patient positioning for the planning of accelerated partial breast radiotherapy for the integrated magnetic resonance linear accelerator: OPRAH MRL
Features
Age
 ≥ 50 years
Subtype
IDC and DCIS
Size
 ≤ 3cm
Grade
 < 3 (1 or 2)
Margin
Negative ≥ 2 mm
Lymphovascular space invasion
Absent
Hormone (ER) Positivity
Yes
Her2
Negative
Nodal Status
Negative or pNITC