For treatments using thermoplastic mask immobilaztion, when supplemental bolus is needed, what is your method for ensuring reproducibility of set-up and bolus effect efficacy?
Does it make a difference if you place the bolus above or below the mask?
Answer from: Radiation Oncologist at Academic Institution
In most cases, my bias is to place under the mask, so that I am more confident that bolus is flush against the skin and there is less room for airgap in the event of anatomic change / weight loss.
For areas of bony prominence (scalp, cheek, etc.) in cases where weight loss is not expected, placemen...
Sign in or Register to read more
Answer from: Radiation Oncologist at Community Practice
I prefer to addd the bolus and then place mask over the bolus whenever possible. It allows you to place the bolus precisely where you need it and get a better fit to anatomy. If the need for bolus if found after the fact during planning I add it on top of the mask.
Answer from: Radiation Oncologist at Community Practice
Above the mask