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Summary for Breast Brachytherapy
•
The experts agree that in using TG43 for
192
Ir procedures:
If you are using high levels of contrast – your overall dose is
decreased
Skin dose is over-estimated (~ 4-10%)
D t ib i d ti t d ( %)
ose o r s s un er-es ma e ~ 5 -7
Dose coverage is probably slightly over-estimated
•
If you use seeds or electronic brachytherapy sources
Very large effect due to breast composition (adipose and
glandular tissues)
Very large effect from bones (ribs)