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“..local History”: Pre-delivered Dose
Part of Implant
d
i
j
(x) has a “History”.
Inverse Optimisation and Planning:
Topography based (TOP)
( )
(
)
( )
[
]
[
]
x
x
1
1
∑
=
−
− Θ =
i
N
j
p i
H
i
j
i
H
i
j
i
i
D d D d
N
f
( )
(
)
( )
[
]
[
]
x
x
1
1
∑
=
−
− Θ =
i
N
j
p
i
j
i
L
i
j
i
L
i
i
d D d D
N
f
“History”:
•
Pre-delivered Dose (previous Implants or ERT)
•
Fixed contribution of a part of the implant
(Fixed contribution form Ring + Tandem & TOP of
additional interstitial needles)