502-503 / 3581
One note of caution about markers
•
DVH of seminal vesicles after marker match on planar kV,
recalculated on daily CBC
•
Don’t forget markers are surrogates and always wonder what
they are good surrogates of
Patient 1:
The SVs get
full dose
every day
Patient 2:
The SVs get
underdosed
some days