ESTRO course on Image Guided Radiotherapy in Clinical Practice 2018

Intra-fraction patient motion (bone) negligible – examples:

▪ 6 bladder cancer patients, 35 x 2 CBCT scans

▪ 10 minutes between post- and pre-scan

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

Brain SRS (2 x 25 pats):

▪

LR

CC

AP

Thermo: PET:

Thermo: PET:

Thermo: PET:

Translations (mm):

M 0.2 SD 0.6

-0.1

0.1 0.3

0.2 0.3

-0.2

-0.2

0.7

0.3

0.3

Rotations (in °):

M 0.1 SD 0.2

0.0 0.3

-0.1

0.1 0.5

0.1 0.4

-0.0

0.7

0.4