Course book Advanced Treatment Planning 2018

Equivalent Uniform Dose - EUD

• For tumours ‘a’ is negative

➢ Typical range -5 (‘less malignant’) – meningioma ➢ to -15 (‘more malignant’) - chordoma

• For normal tissues ‘a’ is positive ➢ Parallel - near 1 ➢

Serial – larger e.g. up to 20 for spinal cord

➢

‘a’ = 1/n in the LKB formulation