New QA approach w/ MC2/MC3 for PTVs less that 2 cm in diameter

[Savvas Morris]

Hello Pinnacle List members,

Recently there was a poster presented at the RSS conference describing 

a 5 mm shift and merge method with MC2/MapPhan in SNC Patient that doubles the resolution of detectors and encourages planning for PTVs less than 2 cm in diameter.

Has anyone experimented with this technique?

Would you be comfortable performing QA with an MC2/MC3 with Mapphan

for intracranial lesions of the same dimensions or just for thoracic lesions? 

Are you concerned with the size/dimensions of your patient vs. your phantom of choice

In general what is the smallest PTV you would plan in Pinnacle w/ VMAT/IMRT

and what are your QA tools for MLC based stereotactic planning (no cones)?

Thanks,

Savvas