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Planning – breast case
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VMAT
1
st
arc 0-270 degrees
2
nd
arc 270-180 degrees
3
rd
arc: 180-90 degrees
•
Breath-hold technique; small beams to optimize heart sparing
14 breath holds (without treatment verificiation)
•
Adaptation of the PTV internal mammary lymph nodes (imn)
→
PTV imn evaluation, i.e. PTV imn minus lung