Advanced Skills in Modern Radiotherapy 2018

From IAEA database of radiation incidents Independent calculation checks 1998-2003 on 27830 charts/plans

An unintended “potential incident” was found: • in ~3 % of all plans, during primary check • in ~½ % of all plans, during secondary check

Actual incidents = accidents: • in ~¼ % of cases

For each actual incident, ~14 potential incidents were found through checking.

An incident frequency of 3% could be seen in a “typical clinic”.