FMECA Analyses of radiological over-exposure accident to patients inbrachytherapy

This paper presents safety analyses of accidental events which can involve patient during High Dose Ratebrachytherapy treatment in over-exposures. The study has been performed by using the well-known techniques FMECAmodified by Fuzzy logic theory. Moreover, fuzzy HEART methodology was employed in order to evaluate human errorprobabilities for each treatment stage. The obtained results, aimed to obtain a list of the deviations with a reasonableprobability to produce significant adverse outcomes, provided some recommendations for procedures and safety equipments to reduce the occurrence of radiological over-exposure accidents.