Course book Advanced Treatment Planning 2018

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Meningioma RT – Organs At Risk constraints
Organ Clinical Constraint
PBT [IMRT]
Brainstem D2% < 63 Gy [< 58 Gy]
Brainstem center D2% < 54 Gy [=]
Spinal cord D2% < 63 Gy [< 58 Gy]
Spinal cord center D2% < 54 Gy [=]
Opticus L/R D2% < 56 Gy [=]
Chiasm D2% < 56 Gy [=]
Bulbus L/R D2% < 45 Gy, Dmean < 30
Gy
Organ Clinical
Constraint
Skin D20cm2 < 60 Gy (surface
dose)
Temp Lobe L/R D2cm2 < 72 Gy
Cochlea R Dmean < 30 Gy
Parotis L/R Dmean < 26 Gy
Larynx Dmean < 50 Gy; V50 Gy
< 30%
Mandible D2% < 70 Gy
Hippoc. L/R D100% < 10 Gy; D2% <
16 Gy
L/R Dmean < 26Gy
Retina L/R D2%<45Gy
NB constraints apply to 39#