1253 / 1578
/
Frequency of re-RT for NSCLC
• Large variability in the literature
• Re-irradiation for recurrent NSCLC is rarly performed
• Re-irradiation is performed in
highly selected
patients
Study
NSCLC Patiens
treated with EBRT
Patients with
Re-irradiation
Green Cancer
1982
774
29
(3.7%)
Jackson Med J Aust
1987
270
22
(8.1%)
Gressen Am J Clin Oncol
2000
1500
23
(1.5%)
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9
/
Definition of re-irradiation
Ø
Cumulative EQD2 doses for interpretation
Ø
Provided by few studies
Scenario 1
Scenario 2
Scenario 3
No high-dose
overlap
Overlap in
parallel organ
Overlap in
serial organ
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