Monaco V 5.11 and V 5.20 (used for radiation treatment planning) 의 리콜

Recall

RC-2016-RN-01421-1

Class II

2016-11-03

Australia

DHTGA

https://apps.tga.gov.au/Prod/sara/arn-detail.aspx?k=RC-2016-RN-01421-1

It has been identified that when running monaco v 5.11 or v.5.20 and creating 3d plans and using elekta motorized wedges, that the dose can be incorrectly calculated when using the reset function in monaco. when creating 3d plans using dose weighting mode, if the user rescales the plan, selects “reset”, and then changes the wedge angle, the plan dose and monitor units (mu) should be returned to the original values before the rescale. instead, the system correctly restores the edited wedge field but incorrectly applies the scale reset value again to all other beams in the plan. the clinical impact is that the mus are correct for the non-wedged beams but the dose being presented on the screen is incorrect. therefore the dose displayed will not be what is delivered.

Elekta is advising users that the issue will be resolved with Monaco software releases V 5.11.02 and 5.30, which have estimated release dates of end of January 2017 and end of March 2017, respectively. Elekta is also advising users that, in the interim, the problem can be avoided by forcing a Monaco recalculation (change dose calculation grid spacing and change back) when any wedge angle change is made.