What margins (CTV and PTV) do you use for palliation when using Quad Shot regimen?
Since this is palliation and generally used for patients with limited longevity, there shouldn’t be a need for a CTV expansion for quad shot. You may use your typical location specific expansion, keeping in mind the particular needs of the patient - their ability to remain immobile and recreate a re...
Join for free or sign in to see the full answer
GTV only with a PTV margin of 5 - 10 mm based on location and patient related factors.
Join for free or sign in to see the full answer
I love quad shot, and of course, reading QuadShot News. But when it comes to margins, I’ll share a story that’s worth a thousand words - and a textbook chapter that would otherwise put us to sleep.
A demented patient with widely metastatic H&N ca, whose wife refused chemo, was once referred to me fo...
Join for free or sign in to see the full answer
Nothing should change based on intent, except for the omission of CTV.
ICRU fundamentals apply to curative and non-curative treatment. Contour a GTV (+/- CTV depending on intent), then add a PTV for set up error/motion. This applies to all palliation with visible tumor - doesn’t matter if it’s QS, ...
Join for free or sign in to see the full answer