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Target volumes – overlaps
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There are always occasions when the PTV and OARs/PRVs overlap
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What is the best strategy?
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The planning concept has changed between ICRU 62 and 83
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In fact it changed completely in ICRU 83
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ICRU 62 – edit PTV (even CTV)
– fine for CRT
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ICRU 83 –
do not
edit
– better for IMRT