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Normal tissue tolerance doeses and alfa/beta ratio |
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Written by Willy Gerber
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Monday, 16 June 2008 21:24 |
| Tissue | End Point | Risk (%) | Dose (Gy) | α/β ratio (Gy) | | Skin | Desquamation | 50 | 55-60 | 10-12 | | | Fibrosis | 5 | 60-65 | 2-3 | | | Telangiectasia | 50 | 55-60 | 3-4 | | Oral mucosa | Confluent mucositis | 50 | 65-70 | 10 | | Small intestine | Late fibrosis, fistulae | 5 | 50 | 3-4 | | Colon, rectum | Late fibrosis, fistulae | 5 | 60 | 3-4 | | Brain, spinal cord | Necrosis | 5 | 50 | 2 | | | | <1 | 60 | | | Nerve plexus | Demyelination, fibrosis | 5 | 65 | 3-4 | | Lung | Pneumonitis | 5 | 20 | 2-4 | | Heart | Pericarditis | 5 | 35-40 | 2-3 | | | Pericarditis | <5 | 50-60 | | | | Cardiomypathy | 50 | 30-36 | | | | Ischaemic heart disease | 15-20 | 30 | | | Kidney | Glomerulosclerosis | <5 | 20 | 2-3 | | Liver | Hepatitis, VOD | 5 | 25-30 | 3 | | Bladder | Cystitis, ulcers | <5 | 60-65 | 5-10 | From Basic Clinic Radiobiology, G.Gordon Steel Copyright gPhysics.net
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