349 / 1778
Timing
of Nodal Boost
Totally delivered D (“waste D”)
Sequential Boost
GTV Regression can be considered
+
-
i.e.:
PTV-N:
16 Gy in 8 fx
PTV-E:
45 Gy in 25 fx
Simultaneous Integrated Boost
Totally administered D
Overall Treatment Time
CTV-T & CTV-N move differently
++
-
PTV-E: 45 Gy in 25 fx
PTV-N: 55 Gy in 25 fx (True pelvis)
57.5 Gy in 25 fx (Outside True p.)
i.e.:
(EMBRACE 2 Study protocol)
Nodes shrink- Excessive D to OAR?
-