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Intra-fraction patient motion (bone)

negligible – examples:

6 bladder cancer patients, 35 x 2 CBCT scans

10 minutes between post- and pre-scan

Brain SRS (2 x 25 pats):

left-right

(mm)

cranio-caudal

(mm)

anterior-posterior

(mm)

mean

SD

mean

SD

mean

SD

post-pre

0

0.4

0

0.3

-0.1

0.5

LR

CC

AP

Thermo: PET:

Thermo: PET:

Thermo: PET:

Translations (mm):

M

0.2

-0.1

0.1

0.2

-0.2

-0.2

SD

0.6

0.7

0.3

0.3

0.3

0.3

Rotations (in °):

M

0.1

0.0

-0.1

0.1

0.1

-0.0

SD

0.2

0.3

0.7

0.5

0.4

0.4