ASMR

Intra-Fraction Error (167 treatment fractions)

9

Hoogeman M, Prévost JB, Nuyttens J, Pöll J, Levendag P, Heijmen B, Clinical accuracy of the respiratory tumor tracking system of the cyberknife: assessment by analysis of log files. Int J Radiat Oncol Biol Phys. 2009 May 1;74(1):297-303.

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No Synchrony

8

Synchrony

7

6

5

4

3

2

1

Intra-fraction error (1 SD) [mm]

0

0

5

10

15

20

25

Respiratory motion amplitude (mm)