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Interplay - Dynamic IMRT
Time scale of dynamic dose delivery (fluence pattern) comparable
to time scale of organ motion
Interplay effect
between organ motion and the
movement (or ‘sequencing’) of the
MLC
a volume element in the tumor
may not receive primary radiation
at all because it is always hidden
behind a leaf of the MLC
Seco et al. Med Phys(34) 2007