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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