Dose 2016

Accuracy: Distance Map Voxel Size

• Predefined (usually for each VOI type i.e. target or OAR etc.) • Automatic Voxel Size to achieve both reasonable accuracy and speed • This can have an affect on the volume accuracy of the DVH

Cubes centered at origin

1.1

15 cm

1.0

0.25 cm

0.9

1 cm

0.5 cm

0.8

5 cm

(cm^3)

4 cm

0.7

2 cm

Calculated Volume 0.6

3 cm

Total Volume normalised to 0.5

0

0.5

1

1.5

2

Voxel Size (cm)

Utrecht 2016