Imaging for Physicists

Geometrical uncertainties

59 Patients, 3 fractions per patient

LR (mm)

CC (mm)

AP (mm)

GM

0.2

0.6

-0.6

Residual Inter- fraction

0.8

0.8

1.0

Σ

1.1

1.1

1.4

σ

GM

0.0

1.0

-0.9

1.2

1.3

1.9

Σ

Intra-fraction

1.2

1.4

1.7

σ