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Table 2 Radiation Treatment Details

From: Trastuzumab Emtansine (T-DM1) and stereotactic radiation in the management of HER2+ breast cancer brain metastases

Variable n %
Technique
 SRS 24 60%
 FSRT 16 40%
SRS Dose (Gy)
 Median (range) 21 (14–24)  
FSRT Dose (Gy)
 Median (range) 25 (20–30)  
 Fractions 5 (3–5)  
Postop 6 15%
PTV (cm3)
 Median (range) 0.92 (0.08–66.2)  
RT in Relation to T-DM1
 Before 11 28%
 After 10 25%
 Concurrent 19 48%
  1. Abbreviations: PTV = planning target volume, SRS = stereotactic radiosurgery, FSRT = fractionated stereotactic radiotherapy