2017_SBRT_Course Book
Re-irradiation tolerance and recovery
Full – partial recovery • Lung pneumonitis • Skin • Mucosa
Partial recovery
No recovery
• Plexus • Spinal cord • Bone • Mesenchymal • Small intestine
• Heart • Lung fibrosis • Heart
• Bladder • Kidney
Factors associated with recovery: • Initial biological dose in relationship to tolerance dose • Initial volume irradiated • Time interval between treatment courses
07.09.17 ESTRO SBRT 2017 - Matthias Guckenberger
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Re-irradiation tolerance and recovery
Full – partial recovery • Lung pneumonitis • Skin • Mucosa
Partial recovery • Plexus • Spinal cord • Bone • Mesenchymal • Small intestine
No recovery • Heart • Lung fibrosis • Heart
• Bladder • Kidney
• Acute toxicity • Relevant for palliative RT
• Late toxicity • Relevant for „ curative “ RT
Ø All organs, which are relevant for acute toxicity in the palliative setting, show relevant recovery
07.09.17 ESTRO SBRT 2017 - Matthias Guckenberger
16
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