EXAMPLE: Calculation of EQD2 for HDR
3 fractions of 7Gy
Tumour
2
2
d
dn
EQD
Gy
Gy
EQD
30
32
10 7
37
2
• D: total dose
• d: fractional dose
• Tumor
/
10
• Late morbidity
/
3
Organ at risk
Gy
Gy
EQD
42
32
37
37
2