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•
The clinical relevance of the
lowest PTV dose points
may
depend on their
position within the PTV
.
•
The
location
of low-dose regions within the GTV, CTV, and
PTV boundaries may be of concern but
the DVH will not
provide that information
. Such regions might, however, be
identifiable using isodose contours.
•
Hence,
it is important that the radiation oncologist not rely
solely on the DVH for treatment evaluation but also
carefully inspect the dose distributions slice-by-slice
(or in
three dimensions) to make sure that the PTV is being
adequately irradiated and that any regions of low dose are
those required to avoid complications.
Recommendation for reporting
SBRT 2017 - D. Verellen