Organ tolerance Flashcards
1
Q
Rectum
A
V50<50
2
Q
Bladder
A
V65<50
3
Q
Lung
A
V20<31 for 10% chance of symptomatic pneumonitis
4
Q
Heart
A
V30<46 for 15% chance of pericarditis
5
Q
Small Bowel
A
V50<5 for 5% chance of late obstruction/perforation
6
Q
Spinal Cord
A
DMax 50Gy for <1% chance of grade 2 myelopathy
7
Q
Oesophagus
A
V35<50 for <30% chance of grade 2 oesophagitis
8
Q
Femoral head
A
D100<52Gy for <5% chance of necrosis
9
Q
Brain
A
DMax 60Gy for <3% chance of symptomatic necrosis
10
Q
Brainstem
A
D100<54Gy for <5% chance of necrosis
11
Q
Optic nerve
A
DMax<55Gy for <3% chance of optic neuropathy
