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RT Treatment Planning
Techniques
•
2D
– opposed lateral Fields – used when treating
bilaterally ie larynx
•
3D
– CT plan – used when treating unilaterally ie parotid,
tonsil
•
IMRT
– used when prescribing different doses to different
parts of H+N or when tumour is located near critical
normal tissues ie spinal cord, optic chiasm, parotids