2
Why is brachytherapy hot?
High, intermediate, low doses within mm
Dose gradients
~5-30% pr mm at the target edge (e.g. 6% at point A)
Hypofractionation
0,00
0,25
0,50
0,75
1,00
1,25
1,50
1,75
2,00
-8
-3
2
7
Distance (cm)
0
20
40
60
80
100
120
140
-8
-3
2
7
Distance (cm)
Relative physical dose
Equivalent dose EQD2 (Gy)