♦ Useful for positive neck nodes in head/neck cancer

♦ Photon beams used to irradiate entire region including spinal cord

♦ Electron beams used additionally, except for spinal cord

Depth (cm)

Tissue penetration of different types of radiotherapy beams.

A schematic representation of a typical electron beam collimation system (some components are not shown).

0 0

Post a comment