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IMRT to Pelvic Lymph Nodes
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PLANNING TARGET VOLUMES
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GTVnodes GTV nodes - vessels
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CTVnodes GTVnodes + 0.7cm with trim for muscle and
bone. Superiorly CTV extends to lower border of L5,as seen
on the sagital view of the planning CT; inferiorly to the
obturator nodes at superior extent of seminal vesicles.
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PTV55 = CTVnodes+ 0.5cm-0.7cm (to be specified on
planning note)