1343 / 1359
Dublin 2018
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
0.5
0.6
0.7
0.8
0.9
1.0
1.1
0
0.5
1
1.5
2
Voxel Size (cm)
Total Volume normalised to
Calculated Volume
(cm^3)
15 cm
0.25 cm
1 cm
0.5 cm
5 cm
4 cm
2 cm
3 cm
From Paul Kinsella St Luke’s